DivX, LLC v. Realtek Semiconductor Corp. et al.

I'll research this case thoroughly using multiple searches to verify the details.

Let me research the patents' technical content, DivX's corporate status, IPR activity, and appellate outcomes.

Case Overview — DivX, LLC v. Realtek Semiconductor Corp., No. 1:20-cv-01202-JLH (D. Del.)

The parties. DivX, LLC is a Delaware LLC headquartered in San Diego (4350 La Jolla Village Dr.). It is the successor to the original DivX operating company (founded 2000), whose video-compression and DRM technology was licensed into, by its own account, more than 1.6 billion devices and whose consumer software was downloaded over a billion times (First Amended Complaint, D.I. 32 ¶¶1–4). By the time of this suit it was no longer selling products but monetizing a roughly 400-patent portfolio. A Fortress Investment Group affiliate (DivX CF Holdings LLC) was formed in late 2017–2018 to acquire the "Old DivX" assets, and DivX, LLC is today described as a Fortress-owned NPE; Unified Patents refers to it as "an NPE and entity of Fortress Investment Group LLC," and Netflix's briefing in the parallel C.D. Cal. case described DivX as part of a Fortress "litigation campaign" (Unified Patents; Netflix opposition filing). On the defense side are Realtek Semiconductor Corp., the Taiwanese fabless chipmaker in Hsinchu Science Park that supplies smart-TV system-on-chips (DivX identified the "RTD2870 SoC"), and [LG Electronics Inc.](/litigations/by-plaintiff/LG%20Electronics%20Inc.) and LG Electronics U.S.A., Inc. (Korea / Englewood Cliffs, N.J.), the TV maker whose sets incorporate those chips (D.I. 32 ¶¶6–8). DivX's amended complaint accused a "Realtek video processing system" comprising "main board hardware and integrated operating system, middleware, [and] application program … manufactured, and packaged for LG by Realtek"; Realtek responded that it sells only SoCs and neither boards nor playback applications, calling the direct-infringement theory factually baseless (a charge it pursued via two Rule 12(c) motions, a Rule 11 notice, and an ITC sanctions motion) (Realtek Fed. Cir. opening brief; Realtek sanctions brief).

Accused technology. The accused products are Realtek TV/video-processing SoCs and the "video processing devices, components … and digital smart televisions" (LG and TCL sets) that contain them, alleged to implement DivX's adaptive-bitrate streaming and encryption/playback techniques (ITC/FAC framing). The same four patents and essentially the same infringement allegations were asserted the day after this complaint in ITC Investigation No. 337-TA-1222, Certain Video Processing Devices, Components Thereof, and Digital Smart Televisions Containing the Same, against Samsung, LG, TCL, MediaTek, and Realtek (DivX press release; 87 FR 32184).

The asserted patents (one-line sketches). All four are DivX streaming/media patents, asserted in the Rule 120 report as 8,832,297; 10,212,486; 10,412,141; 10,484,749 (D.I. 78): (1) '297 — adaptive/multiphase bitrate streaming, claiming a playback device that switches among alternative streams in response to measured streaming conditions; (2) '486 — playback of encrypted video, claiming partially encrypted frames, common decryption keys, and index information (the DRM patent; asserted claims 1 and 15); (3) '141 — adaptive/multiphase streaming with container-file byte ranges and progressive retrieval (Unified notes it is related to the '716 patent it challenged); and (4) '749 — playback/seeking of encrypted streamed media, sharing the '486's specification (asserted claim 1) (ITC contentions, D.I. 30-1; Realtek opposition, D.I. 74). Caveat: I could not within my search budget independently confirm each patent's exact title and full claim scope; the sketches above are drawn from the parties' own characterizations (Realtek summarizes the set as "adaptive-bitrate streaming (the '297 patent), DRM (the '486 and '749 patents)") and should be treated as approximate.

Procedural posture and venue. Filed Sept. 9, 2020 in the District of Delaware, assigned initially to Judge Colm F. Connolly with Magistrate Judge Jennifer L. Hall (No. 20-1202-CFC-JLH); reassigned to Judge Hall on Jan. 12, 2024 (D.I. 78). The case never got past the pleadings: LG obtained a stay after ITC institution (D.I. 13, 15), Realtek answered and moved for judgment on the pleadings twice (D.I. 25, 26, 42, 43), the whole case was stayed June 3, 2021 (D.I. 55), LG was dismissed by stipulation (D.I. 57), and on June 4, 2024 Judge Hall granted DivX's Rule 41(a)(2) motion and dismissed Realtek without prejudice over Realtek's objection (D.I. 78) — there had been no scheduling order, no discovery, and no claim construction (Memorandum Order). Realtek appealed July 5, 2024 (Fed. Cir. No. 2024-2061) arguing the court abused its discretion under Third Circuit voluntary-dismissal law (including the Pathway/IPEVO line) by refusing dismissal with prejudice; the docket shows a USCA mandate entered July 1, 2025 (D.I. 80, 81, 84). I could not verify the Federal Circuit's disposition within my search budget — flagging that as unconfirmed. Delaware mattered here for the usual reasons (DivX is a Delaware LLC, LG USA is a Delaware corporation, and the district is a preferred, patent-experienced venue) and, practically, because it was paired with a Section 337 action; the district court stayed in favor of the ITC, and DivX also filed a companion case against TCL (1:20-cv-01203) and a Samsung case in E.D. Tex. (DivX press release).

Why it is notable. First, it is a window into the post-AIA "mega-NPE" model: a Fortress-funded entity monetizing a legacy operating company's portfolio across an industry-wide set of targets — LG, Samsung, TCL, MediaTek and Realtek at the ITC; Samsung, LG, TCL, Realtek, Hulu, Netflix, and Amazon in district court; plus foreign litigation (e.g., DivX v. Netflix in Brazil over an HEVC deblocking patent). Second, the case is a frequently cited example of procedural gamesmanship and cost-shifting: Realtek argued DivX sued it not to win against a chipmaker but to obtain third-party discovery from a Taiwanese company outside the ITC's subpoena power, then dropped Realtek on the eve of the ITC hearing; that fight generated Rule 11 proceedings, Realtek's ITC sanctions motion (denied in Order No. 75), and a separate Federal Circuit appeal, No. 2023-1095 (Realtek's 2023-1095 brief). Third, the patents sit in a broader PTAB/reexam ecosystem driven by Unified Patents' SEP Video Codec Zone: the related '987 patent was invalidated in IPR2021-01476 and the Federal Circuit affirmed by Rule 36 on June 24, 2025, and Unified's 2026 ex parte reexam request against the '716 patent (related to the '141 patent asserted here) was granted (Unified Patents). Notably, in the parallel Hulu/Netflix litigation DivX confirmed that no IPR was ever filed against the '486 patent, one of the four patents asserted here (DivX stay brief table, C.D. Cal. 2:19-cv-01602). Finally, the market context is the licensing of adaptive-bitrate streaming (HLS/MPEG-DASH) and DRM technology embedded in virtually every connected TV — the exact technology that DivX licenses, and litigates, across the consumer-electronics and streaming industries.

Sourcing note: facts about party roles, the accused products, the dismissal, the ITC posture, and the appeals are grounded in the docket, the District of Delaware Memorandum Order, the Federal Circuit briefs, ITC Federal Register notices, and Unified Patents/RPX/IPWatchdog coverage cited above. Items I flagged as unverified — the exact patent titles/scope, and the disposition of Fed. Cir. No. 2024-2061 — should be confirmed against PACER and the Federal Circuit docket before being relied on.

I'll research this case thoroughly using web search. Let me start with several parallel queries.

I have strong material. Let me dig into the parallel PTAB proceedings, ITC investigation, and the Rule 12(c)/eligibility motions.

I hit the tool-call limit before I could fully run down the PTAB thread, so I'll flag where the IPR record is thin. Here is the chronology based on the docket (D.I. entries), the court's own opinions, the Federal Register ITC notices, and the Federal Circuit filings.

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Key Legal Developments — DivX, LLC v. Realtek Semiconductor Corp., No. 1:20-cv-01202-JLH (D. Del.)

Bottom line: This case never got past the pleading stage. It was filed 2020-09-09, stayed almost immediately in deference to a parallel ITC § 337 action, and ultimately dismissed without prejudice on 2024-06-04 over Realtek's objection — meaning DivX preserved the right to refile. Realtek appealed; the Federal Circuit dismissed the appeal by agreement on 2025-07-01. There was no Markman, no discovery, no trial, and no merits ruling in the district court.

1. Filing & Initial Pleadings

• 2020-09-09 — DivX, LLC filed its original complaint for patent infringement against LG Electronics Inc., LG Electronics U.S.A., Inc., and Realtek Semiconductor Corp. asserting U.S. Patents 8,832,297 ('297, adaptive/multiphase bitrate streaming), 10,212,486 ('486, secure playback/DRM), 10,412,141 ('141, progressive playback), and 10,484,749 ('749, secure playback of encrypted elementary bitstreams). (D.I. 1; Rule 120 Patent Report, D.I. 5.) DivX is a Delaware LLC with a principal place of business in San Diego; Realtek is a Taiwanese corporation based in Hsinchu.
• Same day (2020-09-09/10) — DivX filed a companion district court suit, DivX, LLC v. TCL Corp., C.A. No. 1:20-cv-01203 (D. Del.), and a Section 337 complaint at the ITC involving the same patents against LG, Realtek, Samsung, MediaTek, and TCL entities. This parallel ITC action drove virtually everything that happened next.
• 2020-10-01 — Stipulation extending LG's answer deadline to 2020-12-30. (D.I. 7.)
• 2020-10-14/15 — DivX served Realtek via Rule 4(f)(2)(C)(ii) mailing; initial summons returned unexecuted (D.I. 12, envelope marked "unknown"). (D.I. 8, 11.)
• 2020-10-30 — Case referred to Magistrate Judge Jennifer L. Hall for all pretrial matters up to expert discovery. (D.I. 11.) Judge Colm F. Connolly was the original Article III judge.
• 2021-03-02 — Realtek answered (D.I. 25) and simultaneously filed its first motion for judgment on the pleadings (D.I. 26).
• 2021-03-23 — DivX filed a First Amended Complaint (D.I. 32), which re-cast the infringement allegations. Notably, as against Realtek DivX asserted only the '486 and '749 patents (Realtek's answer admits this at ¶ 10).
• 2021-04-06 — Realtek answered the Amended Complaint (D.I. 42) with affirmative defenses, and filed a second Rule 12(c) motion for judgment on the pleadings (D.I. 43; opening brief D.I. 44).

2. Pre-Trial Motions of Substance

a) LG's motion to stay (as to LG only). In November 2020, shortly after the ITC instituted Investigation No. 337-TA-1222, LG filed an unopposed motion to stay the district court case as to LG, which the Court granted. (D.I. 13, 15.) Realtek did not join that motion.

b) Realtek's Rule 12(c) motions (patent eligibility). On 2021-03-02 and again 2021-04-06, Realtek moved for judgment on the pleadings under 35 U.S.C. § 101 / Alice, arguing that the '486 and '749 claims are directed to the abstract idea of "decryption performed on a generic computing system" with no inventive concept. (D.I. 26, 43, 44.) DivX opposed, arguing the claims are rooted in Enfish-style technical improvements and that factual disputes precluded resolution on the pleadings. (D.I. 47, 2021-04-20.) Neither motion was ever decided — the case was stayed before argument, and the court later noted Realtek's Rule 12(c) motion "has not been argued or decided." (D.I. 78 at 3.)

c) Rule 11 / sanctions. Realtek sent a Rule 11 sanctions letter in November 2020 and served a Rule 11 motion, contending DivX's infringement claims against a chip supplier were objectively baseless (Realtek makes TV SoCs, not the accused "video processing system"/boards or the accused applications) and were filed for the improper purpose of obtaining third-party discovery. (See D.I. 74, 75; Realtek's Fed. Cir. brief, No. 24-2061, Dkt. 18.) This sanctions theme resurfaced in the ITC and became a central argument against dismissal without prejudice.

d) DivX's motion to stay pending the ITC. On 2021-03-09, DivX moved to stay the district court case pending final determination of the ITC investigation. (D.I. 30.) On 2021-06-03 the Court stayed the case (D.I. 55), reasoning that "this case is in its infancy and the Court has not yet entered a scheduling order" and that the ITC case presented "sufficient overlapping factual and legal issues such that there is a potential for significant simplification."

e) Motion to transfer: none. No § 1404 transfer motion appears in the record.

f) Motion to dismiss without prejudice (the dispositive motion). After the stay and the collapse of the ITC case, DivX moved on 2023-10-30 to dismiss its own claims without prejudice. (D.I. 65.) Realtek opposed, arguing for dismissal with prejudice under the four-factor Third Circuit test (Mirtech): (1) excessive/duplicative expense of a second litigation; (2) effort and expense in preparing for trial; (3) extent of litigation progress; and (4) the claimant's diligence in moving to dismiss. Realtek emphasized that it had spent "millions of dollars" defending the co-pending ITC action through the eve of trial and that the ITC record was meant to be cross-used. (D.I. 69, 74.) DivX replied 2023-12-18 (D.I. 71).

g) Summary judgment: none.

3. Claim Construction (Markman)

• No Markman in the district court. The case was stayed before a scheduling order issued, and the court expressly found "no discovery" and "no substantive motions… decided." (D.I. 55; D.I. 78 at 3.)
• Claim construction did occur in the ITC, however: ALJ Order No. 40 (2021-03-12) issued the Markman construction of the asserted patents' disputed terms in Inv. No. 337-TA-1222. Among the disputes were whether the preambles of the '486 and '749 independent claims were limiting (DivX: not limiting; Respondents: limiting). That construction was never imported into the district court case because the stay was never lifted for litigation.

4. Discovery

• No discovery was ever taken in this case. The court's dismissal order is explicit: "No discovery in this case has been taken; discovery has not even started and no scheduling order has issued." (D.I. 78 at 3; DivX brief, D.I. 65.)
• The strategic "discovery" in this dispute happened entirely in the ITC: DivX served infringement contentions (2021-02-08), took fact and expert discovery from Realtek, and litigated motions in limine. Realtek's central narrative — pressed in the Rule 11 motion and in the dismissal briefing — is that DivX added Realtek as a defendant specifically to obtain discovery from a foreign chip supplier it could not easily get via third-party subpoena, then dropped the claims. Realtek alleged DivX offered in February 2021 to drop all claims against Realtek in exchange for discovery cooperation, which Realtek refused. (Realtek Fed. Cir. brief, No. 24-2061, Dkt. 18.)

5. Trial, Verdict, Post-Trial

• No trial, no verdict, no JMOL, no new-trial motion, no fee motion in this case.
• LG exited on 2021-07-29/30 when DivX and LG stipulated to dismissal pursuant to a settlement agreement. (D.I. 57; Fed. Cir. jurisdictional statement in No. 24-2061.)
• The ITC evidentiary hearing (against TCL, the last remaining respondent) was held 2021-07-08 through 07-15, 2021. DivX had already terminated Realtek from the ITC investigation on 2021-07-06 by withdrawing its complaint; the ALJ (Order No. 67, 2021-07-16, unreviewed 2022-08-04) terminated Realtek.

6. Final Disposition and Appeal

• 2022-10 — DivX and Realtek filed a status report (D.I. 58) advising that the ITC case was over and that DivX "will move to dismiss its claims against Realtek without prejudice upon the reopening of this case."
• 2023-09-18 — The Court held a status conference and reopened the case (D.I. 59); the parties agreed to dismissal but disputed prejudice (D.I. 61, 63).
• 2024-01-12 — Case reassigned to Judge Jennifer L. Hall.
• 2024-06-04 — MEMORANDUM ORDER (D.I. 78): DivX's motion to dismiss without prejudice is GRANTED; the Complaint is DISMISSED without prejudice, and the case terminated. Reasoning: the case was still "in its infancy," there was no scheduling order and no discovery, so a second suit would not cause significant duplicative expense; Realtek's ITC expenditures did not compel a with-prejudice dismissal because "if Realtek thinks that DivX acted improperly in the ITC proceeding, Realtek can ask the Commission for relief" (and it had, with that dispute then on appeal). (See also IP/DE blog, 2024-06-05.)
• 2024-07-05 — Realtek noticed an appeal to the Federal Circuit (D.I. 80), docketed as No. 2024-2061 (D.I. 81). Realtek's opening brief argued the district court (i) failed to weigh Factor (4) (diligence), (ii) failed to analyze Factors (2) and (3) (trial-prep expense and litigation progress) despite the extensive ITC record, and (iii) refused to consider that DivX had offered a conditional with-prejudice dismissal. Realtek sought reversal and remand with instructions.
• 2025-07-01 — The Federal Circuit dismissed the appeal under Fed. R. App. P. 42(b) (the parties having so agreed), each side bearing its own costs. Mandate issued the same day. DivX, LLC v. Realtek Semiconductor Corp., No. 2024-2061 (Fed. Cir. July 1, 2025) (nonprecedential order). The joint dismissal strongly suggests the parties reached a settlement, though no settlement terms are in the public record.

Present posture: Case closed; dismissal without prejudice in Delaware, and the Federal Circuit appeal dismissed — so DivX is not barred from refiling against Realtek on the '486 and '749 patents (absent any covenant not to sue in an unwritten settlement).

7. Parallel Proceedings and Their Effect

ITC Inv. No. 337-TA-1222 ("Certain Video Processing Devices, Components Thereof, and Digital Smart Televisions Containing the Same"):

• Instituted/notice of investigation October 2020 against LG, Samsung, Realtek, MediaTek, and TCL entities.
• Order No. 49 (2021-04-21) — Initial determination granting DivX's unopposed motion for partial termination based on withdrawal of numerous claims: '297 claims 3, 5, 6, 9–11, 15; '141 claims 3, 5, 8–10; '486 claims 3, 7, 9, 13–14; '749 claims 1–9 against all respondents, plus several claims as to LG and Realtek. (Unreviewed 2021-05-10.)
• Order No. 65 (2021-06-28) (unreviewed 2021-07-28).
• 2021-07-06 — DivX unopposed motion to terminate as to Realtek (withdrawal); ALJ instructed Realtek not to participate in the hearing.
• 2021-08-12 — Order No. 69 terminating LG and Samsung (after settlement). (Unreviewed 2021-09-15.)
• 2022-04-19/22 — DivX and TCL settled; joint motion to terminate granted (Order No. 76, 2022-04-22; unreviewed 2022-05-24).
• Sanctions fight: Per the Federal Register notice at 87 FR 18685 (2022-08-30), Realtek filed a sanctions motion against DivX on 2021-10-04 (alleged misrepresentations regarding infringement contentions); the ALJ denied it by Order No. 75 (2022-04-22). Realtek petitioned for Commission review (2022-06-01), DivX cross-moved for sanctions against Realtek (2022-06-16), and the Commission denied both; Realtek then appealed to the Federal Circuit. Note: DivX's own district-court brief (D.I. 65) recites the Realtek sanctions motion as "October 4, 2023," which conflicts with the Federal Register's 2021-10-04 date — I'd treat the Federal Register as controlling, but flag the discrepancy. (Cf. ITC Order No. 75 text at archive.org/gov.uscourts.ded.73177.75.1.)
• Fed. Cir. No. 2023-1095 — Realtek's appeal of the ITC's refusal to award sanctions (i.e., Realtek Semiconductor Corp. v. U.S. International Trade Commission, appeal from Inv. No. 337-TA-1222, noted as pending in the Delaware briefing). This is the "sanctions" action the Delaware court pointed to when rejecting Realtek's with-prejudice argument.

Effect on the litigation: The ITC action is the reason this case went dormant and then died. DivX used it to obtain chip-level discovery, exited Realtek from it on the eve of hearing, settled with LG and TCL, and then moved to dismiss the Delaware case while the stay was still in place.

PTAB / IPR proceedings — limited visibility (flagging uncertainty):

• I could not confirm any instituted IPR or PGR on the four patents asserted here ('297, '486, '141, '749) during this research. A USPTO PTAB-associated docket artifact (petition ID 1548456) collects ITC pleadings including claim-construction briefing on the '486 and '749 patents, which indicates a PTAB submission touched these patents, but I was unable to verify a proceeding number, petitioner, institution date, or final written decision within the tool budget. Treat this as unconfirmed.
• The well-documented DivX PTAB activity involves different DivX patents in other campaigns: e.g., Netflix, Inc. v. DivX, LLC, IPR2020-00558 (Fed. Cir. reversal/vacatur of the PTAB's claim construction on U.S. 10,225,588; see 2026 WL 405791 — Netflix v. DivX); Unified Patents, LLC v. DivX, LLC, IPR2021-01476 (U.S. 10,326,987, claims unpatentable, affirmed 2025-06-24, No. 2023-1699); and IPRs involving the '720, '515, '673, '651, and '792 patents litigated in DivX v. Hulu/Netflix (C.D. Cal.). None of those patents are the ones asserted in this Realtek case.
• Notably, the Delaware case was stayed for the ITC, not for any IPR, so PTAB proceedings (if any) had no documented effect on this litigation's trajectory.

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Quick-reference timeline

Counsel of record

• DivX: Farnan LLP (Brian E. Farnan, Michael J. Farnan) and Mintz Levin (Michael T. Renaud, Adam S. Rizk, Daniel B. Weinger, Matthew A. Karambelas, Rosemary J. Piergiovanni).
• Realtek: K&L Gates (Theodore J. Angelis; Steven L. Caponi, Matthew B. Goeller in Delaware).
• LG: Greenberg Traurig / Richards, Layton & Finger (Frederick L. Cottrell III, Elizabeth A. Niemeyer, Renee Mosley Delcollo).

Caveats: (1) the Realtek IPR question is unresolved in my research — please verify on the PTAB docket before relying on any statement that no IPR was filed; (2) the sanctions-motion date (2021 vs. 2023) and the exact terms of any 2025 settlement are not publicly confirmed; (3) no counsel list, event, or date above should be treated as authoritative unless it maps to the D.I. citations or the Federal Register/Federal Circuit sources noted.

I'll research the press coverage of this case systematically, starting with the listed articles and then searching broader angles.

Let me now pull the specific listed articles and search additional angles.

I hit my tool-call limit while running down the later-roundup and mainstream-wire angles, so I'll summarize what I verified and flag what I could not.

Press Coverage — DivX, LLC v. Realtek Semiconductor Corp., No. 1:20-cv-01202 (D. Del.)

The filing and the parallel ITC action drew the most coverage, mostly in trade/roundup form. The earliest trade hit I verified is SamMobile, which reported on 2020-09-15 that DivX "filed a lawsuit against Samsung that accuses the company of quadruple theft of patented video technologies," adding that "LG and Realtek Semiconductor are the defendants in the case as well," that the Delaware complaint sought "damages with interest," and that DivX identifies Samsung's Q90R 4K QLED as an example infringing product — with Realtek's involvement "tied to its role of a major semiconductor supplier of LG's." SamMobile also flagged the ownership angle that became the story's through-line, noting DivX was by then operating "under the new ownership of NYC-based industry giant Endeavor Streaming" (a characterization that conflicts with the Fortress description that other outlets and the court record use — see below). DivX's own press release, distributed the same week the ITC instituted the investigation (filed 2020-09-10, instituted 2020-10-13/19), is the primary-source announcement: DivX quoted CEO Brian Way — "we have amassed over 400 pending and issued patents … When other companies use our technology without permission … we will take all necessary steps to vigorously protect our valuable intellectual property" — and confirmed the companion Delaware and E.D. Tex. district-court suits seeking monetary damages. (The same release is the one syndicated as the Business Wire item listed for this case.) A Korean-language report, Newsway (2020-09-13), likewise reported the twin Samsung (E.D. Tex.) and LG (D. Del.) suits, noting the targets were the world's No. 1 and No. 2 TV makers and that both companies said they would respond after reviewing the complaints. BananaIP's Intellepedia rounded up the same filings.

Outlets framed the case as a Fortress/NPE monetization play, not a products dispute. NextTV (Daniel Frankel) headlined it "Samsung and LG Hit with Smart TV Tech Patent Suit by SoftBank IP Subsidiary," describing DivX as "part of notorious patent litigator Fortress Investment Group," noting Fortress was "purchased by SoftBank for $3.3 billion in 2018," that it "controls more than 1,000 patents," and that it had sued "Netflix and Hulu, just to name a few defendants." NextTV also cited Statista data that Samsung "is the top U.S. smart TV seller this year, controlling about 32% of the market" — the market-impact number in the coverage. This is where the accounts diverge: NextTV/Law Street Media emphasize the SoftBank→Fortress ownership chain, while SamMobile characterized the owner as Endeavor Streaming; the case record (and Unified Patents' later summaries) treats DivX as a Fortress entity, so SamMobile's owner description appears to be an error or to conflate DivX's operating and licensing arms. IPWatchdog covered the filing in its 2020-09-16 "Patent Filings Roundup," whose own headline — "Fortress-Owned Divx Targets Devices" — captures the framing; IPWatchdog followed with a second roundup on 2020-09-23. (Caveat: I confirmed these two IPWatchdog roundups exist at the listed URLs but hit my search budget before retrieving their full text, so I cannot quote their DivX-specific details; the headline of the 9/16 piece is the only direct evidence of its content I verified.) A later IPWatchdog roundup, 2022-03-24, falls in the window of the ITC sanctions fight but I could not verify that it discusses this case specifically, so I do not attribute any DivX content to it.

The most substantive legal-press treatment came from the sanctions saga, years after the district case died. IPWatchdog (Steve Brachmann, 2025-03-19) reported that "the U.S. Court of Appeals for the Federal Circuit issued a precedential decision in Realtek Semiconductor Corp. v. International Trade Commission, dismissing Realtek's appeal from the ITC's denial of sanctions against DivX for pursuing baseless infringement theories during Section 337 proceedings," holding the ITC's refusal to enter a show-cause order sua sponte was discretionary and therefore unreviewable. The article recounts that DivX "filed an unopposed motion to withdraw its Section 337 complaint as it pertained to Realtek" before the July 2021 evidentiary hearing and proceeded only against TCL, that Realtek moved for sanctions in October 2021, and that the ALJ denied the motion (upheld by the Commission). It quotes Joshua Hartman of Merchant & Gould on the safe-harbor analogy to Rule 11 — "If you buy Realtek's position, it renders the safe harbor requirement of Rule 210.4(d) toothless" — and additionally cites ITC briefing that Realtek "admits it believed DivX's infringement contentions were unsupported as early as October or November 2020." This is the same sanctions dispute the Delaware court pointed to in June 2024 when it dismissed DivX's case without prejudice, telling Realtek it could seek relief from the Commission instead. Beyond IPWatchdog, I did not locate dedicated coverage from Reuters, Bloomberg Law, Law360, Ars Technica, The Verge, or Patently-O on this specific docket; and note that the listed BleepingComputer URL (2020-01-17) is an unrelated malware-support forum thread with no connection to this litigation — it appears to be a mis-indexed result and should not be cited as case coverage.

Bottom line for the press record: coverage is real but thin and concentrated at two moments — the September/October 2020 filing-and-ITC-institution wave (SamMobile, NextTV/Law Street Media, DivX's own PR, Korean trade press, IPWatchdog roundups) and the March 2025 Federal Circuit sanctions ruling (IPWatchdog). The 2024 Delaware dismissal, the LG and TCL settlements, and the July 2025 dismissal of Realtek's Fed. Cir. No. 2024-2061 appeal drew no dedicated mainstream or wire coverage I could verify, and no outlet reported damages figures or settlement terms — consistent with the fact that no damages were ever awarded in this docket. Two unverified items I'd flag for follow-up: the full contents of the two 2020 IPWatchdog roundups and the 2022-03-24 roundup, and whether any Law360/Bloomberg item exists behind a paywall (my searches surfaced no accessible one).

Sources

• Not Seeking Sanctions Before DivX ITC Complaint Withdrawn Dooms Realtek - Not Seeking Sanctions Before DivX ITC Complaint Withdrawn Dooms Realtek
• UNITED STATES INTERNATIONAL TRADE COMMISSION
• Justia International Trade Opinion Summaries — Page 4 of 45 — Daily Opinion Summaries for the International Trade by Justia
• On September 9, 2020, DivX filed a complaint for patent infringement against LG Electronics, Inc
• Case: 23-1095 Document: 37 Page: 1 Filed: 08/21/2023
• International Law Category Archives — Page 4 of 11 — Justia International Trade Opinion Summaries Daily Opinion Summaries for the International Trade by Justia
• DivX settled with LG in late June or early July 2021, at about the same time it dismissed its claims in the ITC against Realtek
• review, and thus adopted, Order No
• IN THE UNITED STATES DISTRICT COURT FOR THE DISTRICT OF DELAWARE
• UNITED STATES INTERNATIONAL TRADE COMMISSION Washington, D.C.
• DivX v. LG Electronics & Realtek — Smart TV Video Patent Dispute | PatSnap - Your Agentic AI Partner
• Fortress — News & Views — Unified Patents

I'll verify and expand the plaintiff-side counsel roster with targeted searches.

Good confirmation. Let me run down the remaining names (Piergiovanni, the initial complaint signature block, and any other PHV admissions).

Let me confirm the remaining roster details — original complaint signatory, later PHV/withdrawal entries, and the Federal Circuit appearance for DivX.

I hit the tool-call limit before I could pull the signature block of D.I. 1 and the full Federal Circuit appearance list, so I'll flag those gaps. Here is the verified plaintiff-side roster.

Counsel of Record for Plaintiff DivX, LLC

Correction to the earlier section first: the prior "counsel of record" line grouped Rosemary J. Piergiovanni with the Mintz attorneys. She is not at Mintz — she is a Farnan LLP attorney in Wilmington (and a former career law clerk in the District of Delaware). She appears on DivX's own service list in that capacity. Please treat the earlier grouping as an error.

Structure of the representation

DivX used a two-tier structure typical of Delaware patent practice: a Delaware local-counsel firm of record (Farnan LLP) signing the filings and a Boston-based national IP team (Mintz) appearing pro hac vice and designated "OF COUNSEL." All four Mintz lawyers were admitted PHV by a single motion and order, D.I. 35 (filed Mar. 26, 2021; granted the same day) (D.I. 35). On briefs, DivX's signature blocks read: Mintz attorneys under "OF COUNSEL," then "Brian E. Farnan (Bar No. 4089) / Michael J. Farnan (Bar No. 5165) / FARNAN LLP … Attorneys for Plaintiff DivX, LLC" (D.I. 47; D.I. 30).

Table — attorneys appearing for DivX, LLC

Attorneys on the DivX team who appear in the ITC and/or the Federal Circuit appeal, but whose formal D. Del. appearance I could not confirm

These names appear in DivX's ITC filings and/or the Fed. Cir. appellate papers; I did not verify that they separately entered an appearance in the Delaware district court docket:

• James M. Wodarski — Mintz Member (Boston); ITC/SEP litigator; on the ITC claim-construction team (ITC CC brief).
• Aarti Shah — Mintz, Washington, D.C. office (701 Pennsylvania Ave. NW, Suite 900); ITC practice; listed on the DivX ITC brief.
• Marguerite McConihe — Mintz Member; DivX ITC team.
• Jessica L. Perry — Mintz; DivX ITC team.
• Nana Liu — Mintz; DivX ITC team and counsel for Appellee DivX in Fed. Cir. No. 2024-2061 (corrected entry of appearance with Michael Renaud) (Fed. Cir. docket).

Other DivX-side firms (not Delaware counsel of record)

Reporting on the related DivX campaigns lists additional firms representing DivX in other forums — Robins Kaplan LLP (Aaron Fahrenkrog) and Ward Smith & Hill PLLC (T. John Ward Jr., Charles Everingham IV, Claire Abernathy Henry, Andrea L. Fair) — in the Texas and C.D. Cal. actions (Law360 summary reproduced via CourtListener). I found no indication these firms entered an appearance in this Delaware case, and I would not list them as counsel of record here.

In-house counsel

None identified. No DivX in-house attorney appears on the public docket, in the Rule 120 report, or on any signature block I reviewed. If DivX had internal IP counsel participating, they did not enter an appearance on the public record.

Gaps / caveats

1. D.I. 1 signature block not retrieved. I could not pull the original complaint's caption page within my search budget; the earliest filing I verified is D.I. 30 (Mar. 9, 2021). It is highly likely the complaint was filed by Farnan LLP as the Delaware firm of record, but I have not independently confirmed the originating signatory.
2. No sealed-appearance issue. Counsel information here comes from public filings; there is no indication of sealed or ex parte counsel appearances in this case.
3. Formal appearances vs. team membership. Items 4–7 are confirmed as admitted pro hac vice by D.I. 35. The names in the second group are confirmed as DivX team members in the ITC/appeal but not confirmed as D. Del. entrants — do not treat them as Delaware counsel of record without checking PACER.
4. Mintz firm name/address appears in the filings as "Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C."; the firm now brands as "Mintz."
5. Post-2024 activity. Given the Rule 42(b) dismissal of Fed. Cir. No. 2024-2061 (July 1, 2025) and the terminated Delaware case, any current counsel relationship is unverifiable from public records; a 2025-26 refiling, if any, would have a new docket and potentially new appearances.

I'll research the defense-side counsel of record for each defendant, verifying against docket entries and firm sources.

Good initial data. Let me verify firm affiliations, the LG-side counsel, and the full docket attorney list.

Now let me confirm the Orrick connection, the full docket attorney list, and the LG-side Finnegan team.

Counsel of Record — Defendants' Side

Scope check. The task asks for defense-side counsel. I verified names against D. Del. filings available on CourtListener/Docket Alarm, the Federal Circuit briefs in Nos. 2024‑2061 and 2023‑1095, and firm biographies. Two corrections to the prior "Counsel of record" list are flagged in §3. I hit my tool-call limit before I could run down two loose ends (a stray "John G. ___" attorney entry on the CourtListener docket, and whether Orrick's Irvine team formally entered a D. Del. appearance); both are flagged rather than guessed.

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1. Realtek Semiconductor Corp. — primary defense team: K&L Gates LLP

K&L Gates was Realtek's counsel from the outset — the ITC lead counsel and, per Judge Hall's own order, also its litigation counsel here: "Realtek is represented in the ITC investigation by K&L Gates LLP, and its lead counsel is Theodore Angelis ('Realtek's ITC counsel')" (D.I. 19, Mem. Order, Feb. 5, 2021).

Orrick, Herrington & Sutcliffe LLP (separate defense firm on the Realtek side). Judge Hall's Feb. 5, 2021 service order records that Realtek's ITC counsel told DivX that "Realtek would be represented in this action by Robert Benson of the law firm Orrick Herrington & Sutcliffe LLP," and authorized e-mail service on both Angelis and Benson (D.I. 19).

Additional K&L Gates attorneys on Realtek's ITC/appellate team (not shown as D. Del. counsel of record). The No. 2023‑1095 certificate of interest lists a deep bench — Elizabeth Weiskopf, Nicholas F. Lenning, Jas S. Dhillon, Nelson M. Hua, Katherine L. Allor, Jacob T. Michalakes, Jiang Wu, John M. Hagan, Kwangho Jang, Linda C. Odom, Martha J. Dawson, Ewa A. Wojciechowska, Jacob C. Vannette, plus Robert J. Benson (Orrick) and Jay C. Chiu (K&L Gates, Irvine — also Realtek's PTAB back-up counsel in IPR2023‑00920) (IPWatchdog copy of Realtek's CAFC brief). Treat these as ITC/appellate counsel, not necessarily appearances in this district court case.

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2. LG Electronics Inc. and LG Electronics U.S.A., Inc.

LG's defense was a two-firm structure: Delaware local counsel filed everything, with Finnegan (Washington, DC) as the § 337/patent-side outside counsel admitted pro hac vice. LG obtained a § 1659(a) stay (D.I. 13, 15) and was dismissed by stipulation on July 29–30, 2021 (D.I. 57), so these appearances terminated then.

In-house counsel: no LG or Realtek in-house attorney appears as counsel of record on the public D. Del. docket; nothing suggests an in-house appearance.

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3. Corrections and open items

1. Correction to the prior section's LG entry. The earlier list gave LG's counsel as "Greenberg Traurig / Richards, Layton & Finger (Frederick L. Cottrell III, Elizabeth A. Niemeyer, Renee Mosley Delcollo)." That conflates two firms and one temporary affiliation. In this case, Niemeyer was Finnegan (PHV), not RLF or Greenberg Traurig; RLF was the only Delaware firm on the LG side; and Greenberg Traurig appears only as the current firm of Renée Mosley Delcollo per CourtListener, not as counsel of record in 1:20‑cv‑01202. Verified from D.I. 18 and the CourtListener party list.
2. Realtek's counsel list needs expansion, not correction. The prior section named only K&L Gates (Angelis; Caponi, Goeller in Delaware). Add Jason A. Engel (K&L Gates, Chicago) and the Orrick pair, Robert J. Benson (Irvine; now Baker Botts) and Christopher J. Higgins (Washington, DC) — both reflected in the D. Del./Fed. Cir. record (D.I. 19; D.I. 75‑1; Fed. Cir. No. 24‑2061 Dkt. 14).
3. Unresolved attorney entry (flagged, not asserted). The CourtListener party list for Realtek shows a truncated attorney named "John G. ___,"
   alongside a Wilmington phone number (302) 654‑1888 that does not match K&L Gates' Wilmington office (302) 416‑7xxx (party list). I could not identify this attorney or the firm within my search budget. Do not treat any name here as verified — this should be checked on the CM/ECF attorney report.
4. No counsel ever appeared for LG on the merits — LG never answered; the case was stayed as to LG under 28 U.S.C. § 1659(a) and LG was dismissed by stipulation before the stay was lifted. Similarly, no Realtek attorney ever argued a motion, because the case was stayed June 3, 2021 (D.I. 55) and dismissed without prejudice June 4, 2024 (D.I. 78). Realtek's Rule 12(c) motion (D.I. 43) was never heard.
5. Nothing sealed as to appearances. The D. Del. docket shows no sealed attorney appearance, and no substitute/withdrawal of counsel was docketed before termination.

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4. Sourcing note

Every name above is tied to a specific filing or firm source cited inline. Items I could not verify and which should be confirmed against PACER/CM‑ECF before reliance: (a) whether Benson and Higgins formally entered appearances in the D. Del. docket (they are clearly reflected in the record as Realtek's counsel but I only saw them on briefs/orders and the Fed. Cir. certificate); (b) the identity of the "John G. ___" entry; (c) the exact D. Del. appearance dates for each attorney; and (d) current firm affiliations, which change — Caponi's placement at K&L Gates and Delcollo's move to Greenberg Traurig are confirmed from firm/CourtListener sources, and Benson's move to Baker Botts is inferred from the Federal Circuit certificate of interest. Plaintiff-side counsel (Farnan LLP and Mintz) is set out in the earlier section and is not repeated here.