Viavi Solutions Inc. v. Platinum Optics Technology Inc. ( 2024 )

1 2 3 4 UNITED STATES DISTRICT COURT 5 NORTHERN DISTRICT OF CALIFORNIA 6 SAN JOSE DIVISION 7 8 VIAVI SOLUTIONS INC., Case No. 20-cv-05501-EJD 9 Plaintiff, ORDER GRANTING IN PART MOTION FOR ATTORNEYS’ FEES 10 v. 11 PLATINUM OPTICS TECHNOLOGY Re: ECF No. 218 INC., 12 Defendant. 13 14 In this patent infringement suit, Defendant Platinum Optics Technology (“PTOT”) requests 15 that the Court find this case exceptional under 35 U.S.C. § 285, determine to sanction Plaintiff 16 Viavi Solutions Inc. (“Viavi”) and its counsel under 28 U.S.C. § 1927 and the Court’s inherent 17 power, and award PTOT $826,654 in attorneys’ fees and $8,400 in costs. Motion for Attorneys’ 18 Fees (“Motion” or “Mot.”), ECF No. 218. The Court heard oral argument on October 26, 2023. 19 ECF No. 234. Having considered the parties’ written submissions and oral argument, the Court 20 GRANTS in part the Motion. 21 I. BACKGROUND 22 Viavi is a U.S.-based company that designs low angle shift optical filters using 23 hydrogenated silicon for 3D motion sensing. Compl., ECF No. 1 at ¶¶ 3, 5, 8. It holds various 24 patents associated with this technology, including U.S. Patent Nos. 9,354,369 (the “’369 patent”), 25 9,588,269 (the “’269 patent”), 10,222,526 (the “’526 patent”), and 9,945,995 (the “’995 patent”). 26 Id. ¶ 4. 27 PTOT is a Taiwan-based company. Id. ¶ 19. PTOT manufactures optical filters that 1 employ hydrogenated silicon allegedly using patented technology. Id. ¶ 10. 2 A. Litigation in China and Taiwan (the “Asia Litigations”) 3 As outlined in this Court’s order on Viavi’s motion to dismiss, the parties have a history of 4 patent infringement litigation. See Order on Viavi’s Motion to Dismiss (“MTD Order”), ECF No. 5 210. Before this action, Viavi filed patent infringement lawsuits in China and Taiwan (“Asia 6 Lawsuits”) against PTOT in 2019. Compl. ¶ 11; Mot. 2. The cases involved three optical filters, 7 PTOT’s “11246,” “TW,” and “11694” optical filters. Compl. ¶ 12. The lawsuits were ultimately 8 dissolved and dismissed in April 2020. Id. ¶ 11. The settlement agreements provided a release of 9 infringement liability as to certain of Viavi’s patents for all worldwide sales of PTOT’s products– 10 –including the accused PTOT “11246” filter involved in the Asia Litigations (the “11246 Filter”)– 11 –manufactured or sold prior to May 1, 2020. ECF No. 44-3. 12 B. Subsequent Litigation in the United States 13 Before filing suit in this District, Viavi sent PTOT a letter on July 14, 2020, stating that 14 “[i]t has come to [Viavi’s] attention that since May 1, 2020, [PTOT] has manufactured and sold 15 additional low angle shift bandpass filters that utilize Viavi’s patented technology” and alleging 16 PTOT of “supplying [] filters to [Company1] for incorporation into downstream products sold in 17 the United States.” ECF No. 1-9. Viavi contends that this letter “put PTOT on specific notice that 18 the filters at issue were those supplied to [Company] for products sold in the U.S. after May 19 2020.” Viavi’s Opposition to PTOT’s Motion for Attorneys’ Fees (“Opp.”), ECF No. 224-4 at 5. 20 Three weeks after sending the letter, and having received no response from PTOT, Viavi 21 sued PTOT in this Court in August 2020 asserting infringement of the ’369 patent, the ’269 patent, 22 the ’526 patent, and the ’995 patent (collectively, the “Asserted Patents”).2 See generally Compl. 23 Viavi’s Complaint referred to the Asia Litigations: “[t]he Chinese and Taiwanese litigation 24 25 1 The Court refers to “Company” throughout this Order to maintain the confidentiality of the third- 26 party company, which has been redacted from the parties’ filings. 2 Viavi voluntarily dismissed its claim asserting the ’995 patent on November 6, 2020 27 (ECF No. 30), and the parties filed a joint stipulation of voluntary dismissal of the ’369 patent on March 7, 2022 (ECF No. 152). 1 between Viavi and PTOT involved three (3) optical filters (referenced herein as PTOT’s ‘11246,’ 2 ‘TW’ and ‘11694’ optical filters)[.]” Id. ¶ 12. 3 The Complaint alleged generally that, since May 2020, PTOT has supplied optical filters 4 “that utilize Viavi’s patented filter designs” for use in “electronic devices that are used, offered for 5 sale, sold, and imported into the United States.” Id. ¶ 13. On information and belief, Viavi 6 alleged that “PTOT is supplying at least one of its low angle shift optical filters, the PTOT 7 ‘11246’ optical filter or a filter that is not materially different than that [], for incorporation into 8 electronic devices––such as mobile phones and/or tablet devices––that are sold throughout the 9 United States, including this District.” Id. ¶ 15. Viavi also attached to the Complaint claim charts 10 comparing the Asserted Patents to the “PTOT ‘11246’ Optical Filter”––one of the filters subject to 11 the Asia Lawsuits and the subsequent settlement agreement. Compl., Ex. 10, ECF No. 1-10. The 12 Complaint did not attach any other claim charts. 13 On November 9, 2020, PTOT filed an Answer denying infringement and asserting that 14 “Viavi’s claims for relief are barred in part by licenses granted by Viavi to PTOT or by the 15 doctrine of patent exhaustion.” PTOT’s Answer to Complaint, Affirmative Defenses, and 16 Counterclaims, ECF No. 32 at 16–17. 17 On December 3, 2020, Viavi served its infringement contentions and described the accused 18 products as “low angle shift optical filters that are components for image sensors and optical 19 lenses” that were “supplied and sold” by PTOT since May 1, 2020. Viavi’s Infringement 20 Contentions (“IFC”), ECF No. 44-7 at 2. Viavi explained that “[u]pon information and belief, 21 PTOT’s ‘11246’ optical filter or one or more filters substantially similar thereto” would fall within 22 this scope of what is an accused product. Id. To support its contentions, Viavi attached claim 23 charts again comparing the Asserted Patents to the 11246 Filter. Id., Exs. A–C. Viavi did not 24 chart any other accused product. Viavi contends that its infringement contentions detailed its 25 infringement theories “and used the 11246 filter, which matched [Company’s] specifications, as an 26 example of how the claims read onto the PTOT filter.” Opp. 6. Put differently, Viavi’s 27 infringement contentions “accuse[d] by description,” rather than accusing specific products, and 1 its infringement contentions were “not limited to the one chart” comparing the Asserted Patents to 2 the 11246 Filter. See 4/26/2022 Hearing Tr., ECF No. 216 at 11:1-14. 3 Viavi served discovery on the same day requesting information about other filters beyond 4 the 11246 Filters. See Viavi’s Interrogatories to PTOT, ECF No. 61-5 at 2 (defining “Accused 5 Filter” to include “any optical filter comprising at least two layers of Hydrogenated Silicon 6 manufactured by PTOT”). 7 On January 20, 2021, PTOT filed a motion for summary judgment on the grounds that the 8 only product identified in Viavi’s infringement contentions––the 11246 Filter––was licensed in 9 the Asia Litigations, and the 11246 Filter had not been manufactured or sold since the settlement 10 of those lawsuits on May 1, 2020. PTOT’s Motion for Summary Judgment (“MSJ”), ECF No. 45 11 at 2. In support of the motion, PTOT filed a declaration under oath confirming that (1) PTOT did 12 not design the 11246 Filter for inclusion in any mobile devices or tablets made by Company, and 13 (2) PTOT had not manufactured or sold the 11246 Filters since May 2020. Wu Declaration in 14 Support of PTOT’s Motion for Summary Judgment (“Wu Declaration”), ECF No. 44-13 at 4. 15 Viavi opposed the motion and argued that the infringement contentions were “not limited to” the 16 11246 Filter, but include other, similar filters, the names of which were not available to Viavi. 17 Viavi’s Opposition to MSJ (“MSJ Opp.”), ECF No. 59 at 1. 18 On May 11, 2021, the Court stayed the case pending final resolution of the inter partes 19 review (“IPR”) proceedings that PTOT filed before the Patent Trials and Appeals Board 20 challenging all but one of the asserted claims from the Asserted Patents. ECF No. 95. 21 In July 2021—approximately five months after Viavi had served its infringement 22 contentions on PTOT, exclusive of the time the case was stayed—Viavi allegedly discovered an 23 infringing filter (“Filter #25”) believed to be PTOT’s in a mobile phone sold by Company that 24 Viavi had purchased in Colorado. MTD Order 3; Opp. 8. Viavi moved to amend its infringement 25 contentions on August 27, 2021 to include Filter #25 as an accused filter. Viavi’s Motion to 26 Amend, ECF No. 104. On September 20, 2021, the Court administratively terminated PTOT’s 27 motion for summary judgment and vacated the hearing subject to renewal after Judge van Keulen 1 ruled on Viavi’s motion to amend. ECF No. 111. 2 On August 21, 2021, while the initial lawsuit was stayed pending IPR proceedings, Viavi 3 filed a second lawsuit against PTOT in this Court asserting infringement of the Asserted Patents as 4 to other optical filters that PTOT allegedly provides to Company. See Viavi Sols., Inc. v. Platinum 5 Optics Tech. Inc., No. 21-cv-6655-EJD, ECF No. 1 (N.D. Cal.). Viavi brought the second lawsuit 6 asserting the same patents “to ensure that its proposed amended contentions could proceed, 7 whether as amended contentions in this action or initial contentions in the second action.” Order 8 Denying Viavi’s Motion to Amend (“Mot. to Amend Order”), ECF No. 168 at 4. 9 The Court lifted the stay on March 7, 2022. ECF No. 153. On June 10, 2022, Judge van 10 Keulen denied Viavi’s motion to amend its infringement contentions. Mot. to Amend Order 1. In 11 so holding, the Court found that “Filter #25 is an entirely different product than the 11246 Filter, 12 which has been the focus of the case up until this time.” Id. at 10. The denial was based on the 13 Court’s findings that Viavi was not sufficiently diligent in discovering a basis for the proposed 14 amendments and that amendment would unduly prejudice PTOT. Id. at 6–11. 15 On September 12, 2022, PTOT re-noticed its motion for summary judgment asserting that 16 Viavi could not sustain its infringement claims as to the 11246 Filter. ECF No. 180. Before the 17 Court ruled on PTOT’s re-noticed motion for summary judgment, Viavi moved to voluntarily 18 dismiss the case on September 12, 2022, after the parties were unable to agree to a stipulated 19 dismissal. See ECF No. 193. 20 On May 2, 2023, this Court granted Viavi’s motion to dismiss, dismissing Viavi’s claims 21 with prejudice and dismissing PTOT’s counterclaims without prejudice. MTD Order 10. The 22 Order also denied as moot PTOT’s re-noticed motion for summary judgment. Id. 23 PTOT filed the Motion for Attorneys’ Fees now before the Court on June 16, 2023, 24 seeking $826,654 in attorneys’ fees and $8,400 in costs. Viavi filed an opposition to the motion 25 on July 31, 2023, and PTOT filed a reply on August 14, 2023 (PTOT’s Reply in Support of 26 Motion for Attorneys’ Fees (“Reply”), ECF No. 228). On October 23, 2023, PTOT filed a 27 statement of recent decision notifying the Court regarding an update in a pending appeal 1 concerning one of international litigations. ECF No. 233. The Court heard oral argument on 2 October 26, 2023. ECF No. 234. 3 II. LEGAL STANDARD 4 A. 35 U.S.C. § 285 5 “The court in exceptional cases may award reasonable attorney fees to the prevailing 6 party.” 35 U.S.C. § 285. An exceptional case is “one that stands out from others with respect to 7 the substantive strength of a party’s litigating position (considering both the governing law and the 8 facts of the case) or the unreasonable manner in which the case was litigated.” Octane Fitness, 9 LLC v. ICON Health & Fitness, Inc., 572 U.S. 545, 554 (2014). Courts consider “the totality of 10 the circumstances” when deciding whether a case is “exceptional.” Id. In making the 11 determination, courts may consider factors such as “frivolousness, motivation, objective 12 unreasonableness (both in the factual and legal components of the case) and the need in particular 13 circumstances to advance considerations of compensation and deterrence.” Id. at 554 n.6 14 (quotation marks and citation omitted). Under this test, “a case presenting either subjective bad 15 faith or exceptionally meritless claims may sufficiently set itself apart from mine-run cases to 16 warrant a fee award.” Id. at 555. 17 Courts do not award attorneys’ fees as “a penalty for failure to win a patent infringement 18 suit.” Id. at 548 (quotation marks and citation omitted). “The legislative purpose behind § 285 is 19 to prevent a party from suffering a ‘gross injustice,’” not to punish a party for losing. Checkpoint 20 Sys., Inc. v. All-Tag Sec. S.A., 858 F.3d 1371, 1376 (Fed. Cir. 2017); see also Vasudevan Software, 21 Inc. v. Microstrategy, Inc., No. 11-cv-06637-RS, 2015 WL 4940635, at *5 (N.D. Cal. Aug. 19, 22 2015) (“[O]ther courts in this district have suggested that merely taking an aggressive stance while 23 positing stretched or unsuccessful infringement theories does not, without more, warrant fee- 24 shifting.”); TransPerfect Global, Inc. v. MotionPoint Corp., No. 10-cv-2590-CW, 2014 WL 25 6068384, at *8 (N.D. Cal. Nov. 13, 2014) (finding “frivolous arguments” and other missteps, only 26 some of which were inadvertent, too minor to justify a fee award); Kreative Power, LLC v. 27 Monoprice, Inc., No. 14-cv-02991-SI, 2015 WL 1967289, at *5 (N.D. Cal. Apr. 30, 2015). An 1 exceptional case determination must find support in a “preponderance of evidence.” Octane 2 Fitness, 572 U.S. at 557–58. 3 B. 28 U.S.C. § 1927 4 “An award of fees under Section 1927 ‘must be supported by a finding of subjective bad 5 faith.’” Nelson v. SeaWorld Parks and Entertainment, Inc., No. 15-CV-02172-JSW, 2021 WL 6 8134398, at *2 (N.D. Cal. July 9, 2021), aff’d sub nom. Morizur v. SeaWorld Parks & Ent., Inc., 7 No. 21-16495, 2022 WL 15761398 (9th Cir. Oct. 28, 2022). A court may find bad faith “when an 8 attorney knowingly or recklessly raises a frivolous argument or argues a meritorious claim for the 9 purpose of harassing an opponent.” Id. “Similarly, ‘when a party has acted in bad faith, 10 vexatiously, wantonly, or for oppressive reasons, delaying or disrupting litigation, or has taken 11 actions in the litigation for an improper purpose[,]’ a court has the inherent power to impose 12 attorneys’ fees as a sanction.” Id. 13 III. DISCUSSION 14 PTOT contends this case is exceptional under 35 U.S.C. § 285 and asks the Court to award 15 PTOT $826,654 in attorneys’ fees and $8,400 in costs. Mot. 25. PTOT also asks the Court to 16 sanction Viavi and its counsel under 28 U.S.C. § 1927 and the Court’s inherent power. Id. 17 A. Whether the Case Is Exceptional Under 35 U.S.C. § 285 18 In granting Viavi’s motion to dismiss, the Court found that PTOT is the prevailing party 19 and may seek fees. MTD Order 10. The parties do not dispute that PTOT is the prevailing party 20 in this action. Thus, the Court considers whether this case is exceptional under 35 U.S.C. § 285 21 based on the strength of PTOT’s litigating position or the manner in which it was litigated. 22 1. Viavi’s Pre-Suit Investigation 23 PTOT first contends that Viavi’s infringement claims were “baseless from the outset” 24 because Viavi did not conduct any pre-filing investigation. Mot. 9. PTOT argues that the “full 25 extent” of Viavi’s pre-filing inquiry was to send a letter to PTOT based on a rumor it heard from 26 unspecific sources in Asia. Id. Viavi responds that its pre-filing investigation consisted of much 27 more, including because prior to filing suit, Viavi: (1) knew the settlement agreements from the 1 Asia Litigations provided PTOT a limited license for its past infringement, (2) learned from 2 “sources in Asia” that PTOT was selling its filters to Company for incorporation into mobile 3 devices in the United States, (3) knew the filters must be a specific, specialized filter designed to 4 meet Company’s strict technical requirements, (4) understood Company expected all filters 5 incorporated into its mobile devices to “perform identically, regardless of supplier,” and 6 (5) together with its counsel, analyzed a PTOT-manufactured filter (the 11246 Filter) that met 7 Company’s strict technical requirements to confirm it infringed the Asserted Patents. Opp. 12. 8 While it “may have identified the wrong product name or number,” Viavi maintains that it had a 9 good faith belief that PTOT “was selling unlicensed, infringing filters to [Company] after May 1, 10 2020, for incorporation into [Company] mobile devices that were being sold in the U.S.” Opp. 13. 11 In other words, Viavi contends that it was reasonable to describe the type of filters it was accusing 12 (“low angle shift optical filters . . . for incorporation into electronic devices . . . sold throughout 13 the United States”) and rely on one filter as exemplary to accuse these different, yet-to-be 14 identified filters under the circumstances. Compl. ¶ 15. 15 The Court finds that Viavi’s pre-suit investigation fell short of what is required before 16 filing a patent infringement suit. Viavi was required to “apply the claims of each and every patent 17 that is being brought into the lawsuit to an accused device and conclude that there is a reasonable 18 basis for a finding of infringement of at least one claim of each patent so asserted.” View Eng’g, 19 Inc. v. Robotic Vision Sys., Inc., 208 F.3d 981, 986 (Fed. Cir. 2000). Viavi argues that it 20 “analyzed” “the 11246 filter,” and “determined it infringed the Asserted Patents.” Opp. 12. This 21 scrutiny of the 11246 Filter, Viavi claims, coupled with its knowledge related to Company’s strict 22 technical requirements for inclusion of filters in its products and information learned from industry 23 sources, demonstrates that Viavi’s pre-filing investigation was adequate. Id. 24 The Court is not convinced. Viavi based its infringement theories on one identifiable 25 product: the 11246 Filter––a filter expressly licensed under the settlement agreements in Asia. 26 Compl. ¶ 15. Indeed, Viavi identified the 11246 Filter in the Complaint, attached claim charts to 27 the Complaint comparing the Asserted Patents to only the 11246 Filter, and identified the 11246 1 Filter in its infringement contentions. But Viavi’s only basis for believing that PTOT was selling 2 products (the 11246 Filter or otherwise) outside of the scope of what was expressly released 3 pursuant to the parties’ settlement agreements was what it “learned from sources in Asia.” 4 Opp. 12. 5 The Complaint accused PTOT of supplying the 11246 Filter, and other filters like it, “for 6 incorporation into electronic devices” “that are sold throughout the United States.” Compl. ¶ 15. 7 At the time it filed suit however, Viavi lacked evidence that (1) the 11246 Filter was incorporated 8 in electronic devices sold in the United States, (2) that any other PTOT filter was incorporated in 9 electronic devices sold in the United States, and (3) the Company’s technical specifications (which 10 PTOT’s filters allegedly met) practice any claim of the Asserted Patents. Without more than a 11 “reasonable belief,” Viavi’s contention that meeting Company’s specification necessarily shows 12 infringement is speculative. See Opp. 14. Even if the 11246 Filter met Company’s technical 13 specifications and showed infringement, Viavi still had no evidence the 11246 Filter was 14 incorporated into Company’s mobile devices that are sold in the United States. Instead, it was 15 relying on its sources to supply that information. Reliance on rumor to form the foundation of 16 Viavi’s infringement theory was insufficient. Viavi contends that the rumors proved accurate, but 17 that does not demonstrate that Viavi’s pre-suit investigation was adequate. Nor does it change 18 what Viavi was required to do before filing suit. Viavi provides no persuasive reason why it could 19 not have investigated and confirmed the truth of the rumor prior to filing suit. While Viavi 20 contends that PTOT’s “infringing filters were incorporated into [Company] devices that were 21 already on sale and in the U.S. when Viavi filed its Complaint,” it remains unclear why Viavi 22 could not obtain and inspect a mobile device as it had in other litigations. Viavi acknowledges 23 that it reverse-engineered “the [11246] filter that it reasonably believed met [Company’s] technical 24 requirements.” Opp. 14; see also ECF No. 61-3 (“Viavi has reverse-engineered many competitive 25 filters during its enforcement campaign”). And more importantly, Viavi acknowledged that it 26 could have “hunted and searched” for Filter #25 (or other filters) earlier. 4/26/2022 Hearing Tr., 27 ECF No. 216 at 17:9-13. Viavi should have investigated further before filing suit. Yufa v. TSI 1 Inc., 2014 WL 4071902, at *3 (N.D. Cal. Aug. 14, 2014) (finding pre-suit investigation inadequate 2 where plaintiff “filed [the] action without purchasing or testing any of [the] accused products to 3 determine if they infringed”). 4 Viavi’s failure to produce evidence that it conducted any investigation to ascertain whether 5 the 11246 Filter or another allegedly infringing PTOT filter had entered the stream of commerce 6 in the United States before suing demonstrates an inadequate pre-filing investigation. This weighs 7 in favor of finding exceptionality. Bayer CropScience AG v. Dow AgroSciences LLC, 851 F.3d 8 1302, 1307 (Fed. Cir. 2017) (finding no error “in treating pre-suit diligence as a factor in the 9 totality-of-the-circumstance approach”). 10 2. Viavi’s Reliance on the 11246 Filter 11 Next, PTOT argues that Viavi’s reliance on the 11246 Filter––a product Viavi had licensed 12 to PTOT in connection with the Asia Litigations––to assert infringement underscores the 13 unreasonableness of its claims. Mot. 12. Viavi counters that, because sales after May 1, 2020, are 14 excluded from the parties’ settlement agreements, and its allegations “consistently have been 15 limited to sales after May 1, 2020,” Viavi has not accused any licensed products. Opp. 16. 16 Reviewing the Complaint, the pre-filing letter attached to Complaint, and Viavi’s 17 infringement contentions, Viavi did repeatedly represent that it was alleging only infringement of 18 sales after May 1, 2020. Compl. ¶ 13 (“On information and belief, since the resolution of the 19 earlier lawsuits (on or about May 1, 2020), PTOT has manufactured and sold optical filters that 20 utilize Viavi’s patented filter designs.”), see also id. ¶¶ 32, 39, 46, 53; see also Compl., Ex. 9. 21 Counsel also stated at the hearing on its motion to amend that Viavi’s allegations deliberately 22 carved out licensed filters. See 4/26/2022 Hearing Tr., ECF No. 216 at 46:18–21 (“No matter 23 what they are called, we are not accusing any filter sold before May 1st, 2020, only post- 24 settlement date”). But this is at odds with the claim chart Viavi attached to its Complaint, which 25 compares the 11246 Filter (sold by PTOT to Viavi’s agent in China prior to May 1, 2020, and 26 expressly within the scope of the license) to the Asserted Patents. Compl., Ex. 10, ECF No. 1-10; 27 ECF No. 45-7 at 21 (invoice from sale of 11246 Filter dated Sept. 10, 2018). Viavi’s Complaint 1 explains that it is alleging “the ‘11246’ Filter” “or a filter that is not materially different than that.” 2 Compl. ¶ 15 (emphasis added). As explained above, Viavi presented no evidence that the 11246 3 Filter was being sold post-May 1, 2020, such that those sales would fall outside the scope of the 4 license agreement. 5 To the extent Viavi relied on the expressly licensed 11246 Filter to assert infringement, 6 doing so was unreasonable. To the extent Viavi relied on filters “not materially different” from 7 the expressly licensed 11246 Filter, that, too, was insufficient for the reasons explained above. 8 Namely, that Viavi had not identified any allegedly infringing PTOT filter in any device in the 9 United States prior to filing suit. 10 3. Viavi’s Manner of Litigation 11 Turning to Viavi’s litigation strategy, PTOT contends that Viavi’s post-filing conduct “was 12 equally exceptional” because PTOT “spelled out plainly for Viavi that its case was meritless due 13 to Viavi’s failure to locate and analyze a PTOT filter in the United States.” Mot. 13. 14 a. January 20, 2021 Declaration 15 PTOT faults Viavi for refusing to dismiss the case after PTOT filed its motion for 16 summary judgment on January 20, 2021. Mot. 13. At that time, PTOT told Viavi “that it had 17 accused a licensed product and was seeking improperly to expand the case to cover filters Viavi 18 had never seen, had not shown were in [Company’s] products in the United States, and had not 19 analyzed for infringement as required by the Patent Local Rules.” Mot. 4. 20 In support of its motion for summary judgment, PTOT submitted the Wu Declaration 21 stating that it “has not manufactured or sold any [11246] filters since May 2020.” 22 Wu Declaration 4. Viavi argues that it indeed stopped pursing the 11246 Filter when it learned 23 this information and did not challenge the declaration. See 10/26/2023 Hearing Tr. at 28:13–14, 24 ECF No. 236. Faced with summary judgment, Viavi argues that it “teed up” an issue regarding 25 the scope of its infringement contentions and whether it was “entitled to discovery on products 26 that were substantially similar in the design to the 11246 [filter]”––a position Viavi contends was 27 supported by case law from this District. Id. at 28:21-25. But during the hearing on Viavi’s 1 motion to amend over a year after PTOT filed for summary judgment, counsel told the Court that 2 it was keeping the claim charts based on the 11246 Filter in the infringement contentions as “belt 3 and suspenders.” 4/26/2022 Hearing Tr. at 45:11–18. Even with the benefit of the Wu 4 Declaration stating the opposite, Viavi explained it would drop its claims related to the 11246 5 Filter if discovery revealed that PTOT is no longer making the 11246 Filter. See id. at 45:11–22; 6 see also Mot. to Amend Order 6, n. 2. 7 The record demonstrates that Viavi tried to keep its claims against the 11246 Filter in the 8 case despite the Wu Declaration. When PTOT explained that it had stopped selling the 11246 9 Filter, Viavi should have, at a minimum, abandoned all claims with respect to that filter. Any 10 claims against the 11246 Filter after receiving the declaration were “clearly untenable.” Location 11 Based Servs., LLC v. Niantic, Inc., No. 17-CV-04413-NC, 2018 WL 7569160, at *1 (N.D. Cal. 12 Feb. 16, 2018) (“As to the substantive strength (or weakness) of a party’s litigation position, 13 courts in this district tend to award fees when a plaintiff persists with a clearly untenable claim, or 14 adduces no evidence in support of its position.”). Viavi failed to drop claims against the 11246 15 Filter “amidst [the Wu Declaration] that would prove fatal” to those claims. Bayer CropScience, 16 851 F.3d at 1307 (affirming exceptionality finding where plaintiff sought injunction even after 17 testimony “that debunked [plaintiff’s] claims”); see also Smart Wearable Techs. Inc. v. Fitbit Inc., 18 No. 17-CV-05068-VC, 2018 WL 3201751, at *1 (N.D. Cal. June 27, 2018) (awarding attorneys’ 19 fees where plaintiff “continued to assert infringement theories that were outside the scope of its 20 contentions and unsupported by any real evidence” following summary judgment). 21 This supports a finding of exceptionality. 22 b. Discovery Process 23 PTOT contends that Viavi misused the discovery process by accusing one product “to 24 obtain discovery about other unidentified products.” Id. On this issue, the parties submitted a 25 Joint Discovery Letter Brief on February 24, 2021. ECF No. 61-3 (“Letter Brief”). Judge van 26 Keulen denied without prejudice Viavi’s request for discovery in light of the pending motion for 27 summary judgment. ECF No. 64. But whether Viavi was entitled to discovery beyond the scope 1 of the 11246 Filter was never resolved because the Court denied as moot PTOT’s motion for 2 summary judgment. See ECF No. 210. 3 The Court finds Viavi’s position on whether it was entitled to discovery beyond the 11246 4 Filter weak. Patent Local Rule 3-1(b) requires plaintiffs asserting patent infringement to identify 5 “each accused apparatus, product, device, process, method, act, or other instrumentality … of 6 which the party is aware.” This identification must be “as specific as possible.” Id. Plaintiffs 7 asserting infringement are also required to produce a “chart identifying specifically where and 8 how each limitation of each asserted claim is found within each” accused product. Id. at (c). The 9 Rule permits narrow exceptions to this specific identification requirement “if the plaintiff does not 10 know of the allegedly infringing product when it serves its infringement contentions and could not 11 have discovered the product absent discovery.” See Kelora Sys., LLC v. Target Corp., No. 11- 12 1548-CW-LB), 2011 WL 5444419, at *2 (N.D. Cal. Nov. 9, 2011). In such circumstances, the 13 plaintiff nevertheless must “articulate how the [unknown] accused products share the same, or 14 substantially the same, infringing [structure]” with a named product. Infineon Techs. AG v. 15 Volterra Semiconductor Corp., No. 11-cv-6239-MMC-DMR, 2012 WL 6184394, at *3 (N.D. Cal. 16 Dec. 11, 2012) (finding adequate disclosure where patentee identified “the allegedly infringing 17 products with a narrow categorical definition which articulates how all accused products share the 18 same allegedly infringing structure”); Silicon Labs. Inc. v. Cresta Tech. Corp., 2015 WL 846679, 19 at *2 (N.D. Cal. Feb. 25, 2015) (“in order to rely on a claim that one accused product represents 20 another for purposes of Rule 3–1(c), a patentee must do more than state as much. A patentee must 21 state how”) (emphasis in original). Simply asserting that a product “operate[s] in substantially the 22 same manner” as another accused product does not satisfy Rule 3–1(c). Williamson v. Google 23 LLC, No. 15-CV-00966-BLF, 2018 WL 11414612, at *3 (N.D. Cal. Oct. 1, 2018) (finding 24 infringement contentions insufficiently disclosed infringement theory where contentions “lone 25 mention of [product], in a parenthetical within [] footnote,” failed “to explain how [product] shares 26 the same critical characteristics as the other accused products”) (emphasis in original). 27 Here, Viavi’s infringement contentions charted one product: the 11246 Filter. The 1 contentions also stated Viavi’s belief that “PTOT’s ‘11246’ optical filter or one or more filters 2 substantially similar thereto is included in [Company’s] mobile phones.” ECF No. 45-5 at 2. But 3 Viavi articulated no support in its contentions for this position. Viavi thus failed “to explain how 4 [the other filters] share[] the same critical characteristics as the [11246 Filter].” Williamson, 2018 5 WL 11414612, at *3. 6 More importantly, by January 20, 2021, Viavi was on notice that PTOT had not 7 manufactured or sold any 11246 Filters since May 2020. So it was objectively unreasonable, at a 8 minimum after that date, for Viavi to maintain its contentions as to filters substantially similar to 9 the 11246 Filter––a filter that was no longer at issue. 10 Thus, the Court finds Viavi’s discovery strategy after January 20, 2021 weighs in favor of 11 finding exceptionality. Oplus Techs., Ltd. v. Vizio, Inc., 782 F.3d 1371, 1374 (Fed. Cir. 2015) 12 (vacating failure to award fees when district court detailed plaintiff’s discovery strategy which 13 included filing motions which were “seriously contradictory and unreasonable”). 14 * * * 15 Evaluating the totality of the circumstances, the Court finds that this case is exceptional in 16 certain respects, and PTOT should be awarded some of its fees. Viavi’s pre-suit theory of 17 infringement––the foundation of which rested on an admitted rumor––was attenuated and 18 unsupported. Viavi should have preliminarily conducted a more fulsome investigation. That said, 19 Viavi had a weak, but not objectively baseless, belief that it could accuse the filters it did by 20 description as compared to the 11246 Filter and later supplement its contentions through 21 information revealed in discovery. 22 But when Viavi received PTOT’s declaration in support of its motion for summary 23 judgment conclusively shutting the door on its infringement claims as to the 11246 Filter, Viavi 24 should have recognized its claims against the 11246 Filter were clearly untenable and dropped 25 them. Instead, Viavi refused to drop the 11246 Filter from the case until further discovery 26 confirmed what was already stated in the Wu Declaration. Doing so unnecessarily prolonged this 27 litigation and caused PTOT to expend unnecessary fees. In re PersonalWeb Techs. LLC, 85 F.4th 1 1148, 1159 (Fed. Cir. 2023) (affirming district court’s award of fees where party “unnecessarily 2 prolonged the action” by refusing to stipulate to non-infringement despite adverse claim 3 construction). Viavi’s reasonable course of action would have been to stipulate to non- 4 infringement of the 11246 Filter immediately after receiving the Wu Declaration. Without the 5 11246 Filter in the case, Viavi was left with only claims against a category of uncharted filters 6 accused by comparison to the 11246 Filter. It was objectively unreasonable for Viavi to maintain 7 its claims beyond this point in the case. 8 Viavi “may have filed a weak infringement lawsuit,” but the claims against the 9 11246 Filter, and the filters accused by comparison to the 11246 Filter, “became baseless after the 10 [the Wu Declaration].” AdjustaCam, LLC v. Newegg, Inc., 861 F.3d 1353, 1360 (Fed. Cir. 2017). 11 Accordingly, the Court finds it appropriate to award some of PTOT’s attorneys’ fees 12 incurred from January 20, 2021. 13 B. Whether Sanctions Are Warranted Under 28 U.S.C. § 1927 14 PTOT also requests that the Court sanction Viavi and its counsel under 28 U.S.C. § 1927. 15 Mot. 16. “An award of fees under Section 1927 ‘must be supported by a finding of subjective bad 16 faith.’” Nelson, 2021 WL 8134398, at *2. A court may find bad faith “when an attorney 17 knowingly or recklessly raises a frivolous argument or argues a meritorious claim for the purpose 18 of harassing an opponent.” Id. “Similarly, ‘when a party has acted in bad faith, vexatiously, 19 wantonly, or for oppressive reasons, delaying or disrupting litigation, or has taken actions in the 20 litigation for an improper purpose[,]’ a court has the inherent power to impose attorneys’ fees as a 21 sanction.” Id. 22 The Court is not convinced that Viavi’s counsel’s conduct has risen to the level of 23 misconduct required under § 1927. Although weak and ultimately unsuccessful, Viavi’s positions 24 were not knowingly reckless. The Court does not find that Viavi or its counsel acted with 25 “subjective bad faith.” Blixseth v. Yellowstone Mountain Club, LLC, 796 F.3d 1004, 1007 (9th 26 Cir. 2015) (“Sanctions pursuant to section 1927 must be supported by a finding of subjective bad 27 faith.”). Under Ninth Circuit law, “bad faith is present when an attorney knowingly or recklessly 1 raises a frivolous argument or argues a meritorious claim for the purpose of harassing an 2 opponent.” Id. 3 As discussed above, Viavi’s pre-suit investigation was inadequate and its position 4 regarding the scope of its infringement contentions was weak and perhaps inappropriate to 5 continue. However disappointing the conduct, the Court will not find that Viavi’s counsel 6 knowingly or recklessly raised a frivolous argument or argued a meritorious claim for the purpose 7 of harassing an opponent. 8 Accordingly, the Court declines to find sanctions warranted under either § 1927 or the 9 Court’s inherent power. Blixseth, 796 F.3d at 1007. 10 C. Costs 11 PTOT seeks non-taxable expenses totaling $8,400 for expert witness fees incurred as part 12 of PTOT’s opposition to Viavi’s motion to amend. Viavi argues that the Court should not award 13 costs because “[t]here is no evidence of record that demonstrates Viavi sought to deceive PTOT 14 (through its pre-filing investigation or discovery conduct) or litigate in bad faith.” Opp. 24. 15 “Section 285 allows a district court to award attorney’s fees for exceptional conduct, but 16 the statute has been read to exclude expert witness fees.” Finjan, Inc. v. Juniper Networks, Inc., 17 No. 17-cv-05659 WHA, 2021 WL 3140716, at *3 (N.D. Cal. July 26, 2021) (citing Amsted Indus., 18 Inc. v. Buckeye Steel Castings Co., 23 F.3d 374, 377 (Fed. Cir. 1994)). Expert fees, however, can 19 be awarded as sanctions pursuant to Section 1927 or a court’s inherent powers. Id. “Not every 20 case qualifying as exceptional under Section 285 will also qualify for sanctions pursuant to 21 Section 1927 or the court’s inherent power.” Id. To justify an award of sanctions, a district court 22 must assess whether a particular case goes sufficiently beyond exceptional within the meaning of 23 Section 285. Id. 24 Here, PTOT retained an expert to respond to “newfound technical arguments” to refute 25 Viavi’s “new infringement theory” based on Filter #25. Mot. 24. Use of the court’s inherent 26 authority to impose sanctions “is reserved for cases where the district court makes a finding of 27 fraud or bad faith whereby the very temple of justice has been defiled.” MarcTec, LLC v. Johnson 1 & Johnson, 664 F.3d 907, 921 (Fed. Cir. 2012) (quotations omitted). As PTOT has not 2 established fraud or the requisite bad faith, the court “enjoys no discretion to employ inherent 3 powers to impose sanctions” in the form of PTOT’s expert witness fees. See Amsted, 23 F.3d at 4 378. 5 IV. AMOUNT OF FEES 6 PTOT submitted a declaration in support of its requested amount of fees and costs. 7 Declaration of David S. Bloch in Support of PTOT’s Motion for Attorney Fees and Costs, ECF 8 No. 218-1. Viavi challenges the reasonableness of the requested fees. Opp. 24. 9 As set forth below, the Court requests that PTOT submit its billing records for fees, and the 10 Court will determine the reasonableness of the requested fees separately. 11 V. CONCLUSION 12 For the foregoing reasons, 13 • PTOT’s Motion for Attorney Fees and Costs is GRANTED IN PART. 14 • The Court will determine the reasonableness of the requested fees separately. 15 Within four weeks of this Order, PTOT is ordered to submit billing records for fees 16 requested following January 20, 2021, including any request for fees associated 17 with the preparation of this Motion. The Court will permit PTOT to redact the 18 limited portions of billings entries PTOT contends contain privileged information, 19 but PTOT must lodge an unredacted version with the Court. The submission 20 should be organized in a chart informing the Court of the timekeepers and number 21 of hours applicable to each category. The Court provides the below chart as an 22 example but defers to PTOT on the format of its submission. Date Hours Timekeeper Billing Entry Category 23 Billed Description 24 [Date] [Hours] [Name] [Description] [e.g., Opposition to Motion to Dismiss] 25 • Viavi may file a supplemental brief, not to exceed eight pages, to address the 26 reasonableness of the fees set forth in PTOT’s billing records within three weeks of 27 1 PTOT’s submission. 2 e PTOT may file a five-page reply within one week of Viavi’s submission. 3 4 IT IS SO ORDERED. 5 Dated: March 19, 2024 6 7 EDWARD J. DAVILA 8 United States District Judge 9 10 11 12 15 16 = 17 Z 18 19 20 21 22 23 24 25 26 27 28 || Case No.: 20-cv-05501-EJD ORDER GRANTING IN PART MOT. FOR ATTYS’ FEES