Delaware Display Group LLC et al. v. LG Electronics Inc.

Delaware Display Group LLC and Innovative Display Technologies LLC, identified as Non-Practicing Entities (NPEs) or Patent Assertion Entities (PAEs) that acquire patents for enforcement, initiated this litigation against global consumer electronics giant LG Electronics Inc. and its subsidiaries, including LG Electronics USA Inc., LG Display Co. Ltd., and LG Display America Inc.. The lawsuit, filed on December 31, 2013, in the U.S. District Court for the District of Delaware, alleged infringement of various patents related to LCD and backlight technologies by LG's products, including specific devices like the LG Optimus E970 mobile phone.

The primary patent at issue, as specified in the case details, is U.S. Patent No. 7,300,194. This patent broadly describes light emitting panel assemblies for improved display backlighting. While originally asserted in the litigation, this patent, along with others, became the subject of inter partes review (IPR) proceedings at the Patent Trial and Appeal Board (PTAB), specifically IPR2014-01097 and IPR2015-00360. In October 2015, claims related to several patents subject to instituted IPRs were dismissed without prejudice from the district court case, suggesting that US Patent No. 7,300,194 may no longer be actively asserted in this specific litigation due to these PTAB challenges. [13 from previous search, not in current output]

The case is presided over by Judge Richard G. Andrews in the U.S. District Court for the District of Delaware. Delaware is a prominent venue for patent litigation, largely because a significant number of major U.S. technology and pharmaceutical companies are incorporated there, making it a mandatory forum for many infringement suits after the Supreme Court's TC Heartland decision. The district is known for its experienced patent bench, procedural rigor, and a mature body of patent-specific precedent, which offers predictability for litigants. The prevalence of NPE filings in Delaware and the frequent use of parallel PTAB proceedings, as seen with Innovative Display Technologies LLC and its patents, are notable aspects of the broader patent litigation landscape reflected in this case.

Delaware Display Group LLC and Innovative Display Technologies LLC initiated patent infringement litigation against LG Electronics Inc., LG Electronics U.S.A., Inc., LG Display Co., Ltd., and LG Display America, Inc. in the U.S. District Court for the District of Delaware. The case, 1:13-cv-02109, was filed on December 31, 2013, and remains active. While the initial complaint specifically identified U.S. Patent Nos. 7,434,974 and 7,537,370 as "patents-in-suit," U.S. Patent No. 7,300,194 was also a subject of parallel proceedings related to this litigation.

Here's a chronological summary of the key legal developments and outcomes:

• 2013-12-31: Plaintiffs Delaware Display Group LLC and Innovative Display Technologies LLC filed the patent infringement lawsuit against LG Electronics Inc. and its affiliates. The complaint alleged infringement of U.S. Patent Nos. 7,434,974 and 7,537,370.

• 2015-01-26: The Patent Trial and Appeal Board (PTAB) denied institution of inter partes review (IPR) for U.S. Patent No. 7,300,194 (IPR2014-01097), which was a related proceeding to the district court case. The petitioner, LG Display, Ltd., failed to establish a reasonable likelihood of prevailing on the challenged claims. The Board emphasized that merely demonstrating known components in prior art is insufficient; a petitioner must also explain the motivation and method for a person of ordinary skill to combine those components. This denial meant the patent claims were not invalidated through this IPR process. Similarly, IPRs were filed for U.S. Patent Nos. 7,434,974 (IPR2014-01092) and 7,537,370 (IPR2014-01096), but the outcomes of those specific IPRs are not detailed in the available information.

• 2015-07-09: Defendants served document subpoenas on non-parties Rambus, Inc. and Rambus Delaware LLC as part of discovery.

• 2015-12-04: Plaintiffs moved to amend their complaint to add allegations of willful infringement.

• 2016-02-23: The District Court denied the Plaintiffs' motion for leave to amend the complaint to add allegations of willful infringement. On the same day, the Court granted the Defendants' motion to compel compliance with the subpoenas issued to Rambus, Inc. and Rambus Delaware LLC.

• 2016-11-28: The Court issued a Memorandum Opinion addressing pending motions for summary judgment and a motion to strike. The court denied parts of the summary judgment motions, finding genuine disputes of material fact regarding whether a specific claim limitation ("a tray or housing having a cavity or recess in which the panel member is entirely received") was met, and concerning the defense of unclean hands. However, the court granted Plaintiffs' motion for summary judgment on other defenses and confirmed that the asserted patents were properly transferred to Plaintiffs, giving them the right to sue.

• 2017-01-18: A Memorandum Opinion was issued regarding a motion to preclude the expert testimony of Patrick F. Kennedy, Ph.D. The specific outcome of this motion (granted or denied) is not specified in the available information.

There is no information in the available records about a Markman (claim construction) order, trial events, verdict, or post-trial motions for this specific case. The case remains active in the District of Delaware.

I'll search several angles for press coverage of this case.

Press and trade coverage

Coverage of this specific docket is thin and almost entirely paywalled litigation-trade reporting; I found no Reuters, Bloomberg Law, Ars Technica, The Verge, IPWatchdog, Patently-O, or mainstream coverage of Delaware Display Group v. LG Electronics (D. Del. No. 1:13-cv-02109). The single dedicated press record I could locate is Law360's case page, which indexes three articles about the suit (headlines and abstract text are visible on the index page; the underlying articles sit behind a paywall, so I could not verify their full contents).

According to Law360's abstracts, the case's press arc ran from a PTAB hearing through summary judgment to settlement. On 2016-03-01, Law360 reported that "LG Display Group pushed a Patent Trial and Appeals Board panel … to invalidate as anticipated an LCD patent asserted against LG in Delaware federal court, maintaining the patent adds nothing novel to a similar 1997 patent" — a hearing report on the parallel LG IPR campaign rather than the district court merits. On 2016-08-29, Law360 reported that LG and Lenovo "urged a Delaware federal judge … to throw out claims the companies infringed Delaware Display Group's LCD patents, arguing that despite years to put together their case Delaware Display has not provided evidence showing LG and Lenovo used its backlight technology in hundreds of their products" — i.e., the non-infringement/summary-judgment phase, consistent with Judge Andrews's 2016-11-28 Memorandum Opinion denying the defendants' invalidity and non-infringement motions on genuine disputes of material fact (the docket text describes the '194 claims dismissed in Oct. 2015 as no longer asserted). Most significantly for outcome, on 2017-04-10, Law360 reported under the headline "Lenovo, LG Settle Patent Suits Over Display Backlight Tech" that the parties "told a Delaware federal judge they'd agreed to drop claims in one case and set the stage for dismissal papers in the other." No outlet I found reported any damages figure, royalty rate, or settlement amount — Law360's abstract describes a negotiated dismissal, not a payment, and I found no Acacia Research (the plaintiffs' parent) press release or SEC filing announcing an LG settlement, in contrast to Acacia's public announcements of its 2015 Sony and Dell/HP settlements, which are documented on Business Wire and in an Acacia Form 8-K — but those releases concern the parallel Sony and Dell/HP suits, not this one.

The only substantive legal-trade analysis I found touching this litigation is The National Law Review, which published a Drinker Biddle & Reath summary of the PTAB's 2015-07-06 institution decision in LG Display Co., Ltd. v. Delaware Display Group LLC, IPR2015-00506 (the '973 patent, asserted against LG in the Delaware case). That piece is notable for going beyond the court record: it recounted the Board's rejection of Delaware Display's argument that LG Electronics Inc. and LG Electronics U.S.A. Inc. were unnamed real parties-in-interest, quoting the Board's reasoning that "LG Electronics Inc. is not even a majority owner of Petitioner" and that shared counsel with the district court case was, "without more, … insufficient evidence to demonstrate control of this proceeding." It also detailed the Board's mixed ruling — instituting only the Shinohara anticipation ground while refusing obviousness grounds because LG failed to explain why a skilled artisan would combine Shinohara with Yoshikawa — which is the same "articulated reasoning" standard the Board applied when it refused institution in IPR2014-01097 on the '194 patent.

Finally, two sourcing caveats. First, the case metadata's "Active" status conflicts with the press record: Law360 reported on 2017-04-10 that the parties had agreed to drop claims and were preparing dismissal papers, and the companion LG case (No. 1:15-cv-01221) is listed by RPX Insight as closed on 2017-04-12 — so this docket should be treated as likely terminated by settlement/dismissal in April 2017 absent contrary docket verification. Second, the case summary's framing of the '194 patent as "the primary patent at issue" is not supported by the press or court record: Judge Andrews's 2015-11-06 claim construction opinion describes the patents-in-suit as the '974 and '370 patents (with '816 and '196 also construed), and Delaware Display dismissed all claims on three IPR-challenged patents without prejudice on 2015-10-21 — consistent with the '194 patent dropping out of the case rather than being its centerpiece. I could not locate any article reporting a verdict, injunction, or damages award.

Sources

• UNITED STATES PATENT AND TRADEMARK OFFICE
• Case IPR2014- 01357 Patent 6,755,547
• UNITED STATES PATENT AND TRADEMARK OFFICE
• U.S. District Court District of Delaware (Wilmington) CIVIL DOCKET FOR CASE #: 1:13-cv-02109-RGA
• Search court records on patent:(7434973)
• Delaware Display Group LLC et al v
• LG Display Co., Ltd. v. Delaware Display Group LLC: Granting Institution of One Asserted Ground of Unpatentability IPR2015-00506 - Published on The National Law Review https://dev
• Cases
• Filed on behalf of Innovative Display Technologies LLC By: Justin B
• Delaware Display Group LLC et al v
• UNITED STATES PATENT AND TRADEMARK OFFICE
• DELAWARE DISPLAY GROUP LLC's EXHIBIT 2004

Here is the counsel of record representing the plaintiff(s), Delaware Display Group LLC and Innovative Display Technologies LLC, in Delaware Display Group LLC et al. v. LG Electronics Inc. (1:13-cv-02109):

Lead Counsel

• Jeffrey R. Bragalone (Lead Counsel)

  • Firm: Bragalone Conroy P.C.
  • Office Location: Dallas, TX
  • Experience: Mr. Bragalone has represented Innovative Display Technologies LLC as lead counsel in numerous patent cases, including assertions of patents related to light emitting panel assemblies against various electronic devices.

• Patrick J. Conroy (Lead Counsel)

  • Firm: Bragalone Conroy P.C.
  • Office Location: Dallas, TX
  • Experience: Mr. Conroy is listed as an attorney for the plaintiffs in court documents and has represented Innovative Display Technologies LLC in patent infringement actions.

• Justin B. Kimble (Lead Counsel)

  • Firm: Bragalone Conroy P.C.
  • Office Location: Dallas, TX
  • Experience: Mr. Kimble has represented Innovative Display Technologies LLC as lead counsel in numerous patent cases, including matters involving light emitting panel assemblies.

• Daniel F. Olejko (Lead Counsel)

  • Firm: Bragalone Conroy P.C.
  • Office Location: Dallas, TX
  • Experience: Mr. Olejko is listed as an attorney for the plaintiffs in court documents.

• James R. Perkins (Lead Counsel)

  • Firm: Bragalone Conroy P.C.
  • Office Location: Dallas, TX
  • Experience: Mr. Perkins is listed as an attorney for the plaintiffs in court documents.

• T. William Kennedy, Jr. (Lead Counsel)

  • Firm: Bragalone Conroy P.C.
  • Office Location: Dallas, TX
  • Experience: Mr. Kennedy is listed as an attorney for the plaintiffs in court documents.

• Stephanie Wood (Lead Counsel)

  • Firm: Bragalone Conroy P.C.
  • Office Location: Dallas, TX
  • Experience: Ms. Wood is listed as an attorney for the plaintiffs in court documents.

Local Counsel

• Joseph J. Farnan, Jr. (Local Counsel)

  • Firm: Farnan LLP
  • Office Location: Wilmington, DE
  • Experience: As a former U.S. District Judge for the District of Delaware, Mr. Farnan brings significant judicial experience to patent litigation matters.

• Brian E. Farnan (Local Counsel)

  • Firm: Farnan LLP
  • Office Location: Wilmington, DE
  • Experience: Mr. Farnan is listed as an attorney for the plaintiffs in court documents for cases in the District of Delaware.

• Michael J. Farnan (Local Counsel)

  • Firm: Farnan LLP
  • Office Location: Wilmington, DE
  • Experience: Mr. Farnan is listed as an attorney for the plaintiffs in court documents for cases in the District of Delaware.

The filings reviewed primarily date from 2015-2017. While other Delaware firms like Morris, Nichols, Arsht & Tunnell LLP and Potter Anderson & Corroon LLP are frequently engaged as local counsel in complex patent litigation in Delaware, and attorneys like Stamatios Stamoulis and Richard K. Herrmann are prominent in IP litigation in the district, the available court documents specifically name the Farnan LLP and Bragalone Conroy P.C. attorneys as counsel for the plaintiffs in this case during the specified period.

Here is the counsel of record representing the defendant(s) LG Electronics Inc., LG Electronics USA, Inc., LG Display Co. Ltd., and LG Display America Inc. in Delaware Display Group LLC et al. v. LG Electronics Inc., Case No. 1:13-cv-02109 (D. Del.):

• Jamie B. Beaber

  • Role: Lead counsel (implied by multiple listings as an attorney for LG alongside other Mayer Brown attorneys).
  • Firm: Mayer Brown LLP, Washington, D.C.
  • Experience: Mr. Beaber is a partner in Mayer Brown's Intellectual Property practice and focuses on patent litigation, Section 337 investigations, and inter partes review proceedings.

• Kfir Levy

  • Role: Counsel.
  • Firm: Mayer Brown LLP, Washington, D.C.
  • Experience: Mr. Levy is a partner in Mayer Brown's Intellectual Property practice, focusing on patent litigation across various technologies.

• Robert G. Pluta

  • Role: Counsel.
  • Firm: Mayer Brown LLP, Chicago, Illinois.
  • Experience: Mr. Pluta is a partner in Mayer Brown's Intellectual Property practice, with experience in patent litigation and other intellectual property disputes.

• Amanda K. Streff

  • Role: Counsel.
  • Firm: Mayer Brown LLP, Chicago, Illinois.
  • Experience: Ms. Streff is a partner in Mayer Brown's Intellectual Property practice, representing clients in patent litigation in federal district courts and before the ITC.

• Benjamin J. Schladweiler

  • Role: Local counsel.
  • Firm: Ross Aronstam & Moritz LLP, Wilmington, Delaware.
  • Experience: Mr. Schladweiler is a director at Ross Aronstam & Moritz LLP and frequently serves as Delaware local counsel in complex commercial and intellectual property litigation.