G+ Communications v. Samsung Electronics

This case involves G+ Communications, a non-practicing entity (NPE) also known as a patent assertion entity (PAE), and Samsung Electronics, a global operating company renowned for its consumer electronics, including smartphones and semiconductor products. G+ Communications acquired a portfolio of patents, notably some related to wireless standards from China's ZTE Corporation, and has actively pursued litigation against major technology implementers. The accused products and technologies in the broader litigation context are Samsung's various products, particularly its Galaxy line of mobile phones, which allegedly infringe patents essential to the 5G telecommunications standard.

The specific appellate case, G+ Communications v. Samsung Electronics, CAFC Case No. 2023-1087, centered on U.S. Patent 10,615,925. While G+ Communications is widely known for asserting standard-essential patents (SEPs) related to 5G technology, the technical sketch of US Patent 10,615,925 describes systems and methods for "Data compression for multidimensional time series data." This CAFC appeal originated from an inter partes review (IPR) at the Patent Trial and Appeal Board (PTAB), where the claims of US Patent 10,615,925 were found unpatentable due to anticipation. This PTAB challenge was a defensive maneuver by Samsung, following earlier patent infringement litigation initiated by G+ Communications against Samsung in the U.S. District Court for the Eastern District of Texas (Case No. 2:22-cv-00078), a venue popular for patent assertion cases, before Judge Rodney Gilstrap.

This case is notable for several reasons, reflecting broader trends in patent litigation. G+ Communications' strategy as an NPE, asserting patents acquired from former operating companies like ZTE, highlights a common pattern in the patent landscape. The underlying district court litigation against Samsung resulted in substantial damages awards, with a jury initially awarding $67.5 million, which later increased to $142 million in a retrial on damages, underscoring the high financial stakes in disputes involving alleged infringement of valuable patent portfolios. The appeal to the U.S. Court of Appeals for the Federal Circuit (CAFC) from a PTAB decision is a critical procedural path, as the CAFC holds exclusive jurisdiction over patent appeals and its rulings significantly influence patentability standards and the validity of challenged patents. The CAFC's affirmation of the PTAB's decision on July 30, 2026, finding claims of US Patent 10,615,925 unpatentable due to anticipation, demonstrates the continuing effectiveness of IPRs as a tool for challenging patent validity and the Federal Circuit's role in upholding these administrative determinations.

The provided information indicates that the case G+ Communications v. Samsung Electronics, CAFC Case No. 2023-1087, is an appeal from a PTAB ruling. The CAFC affirmed the PTAB's decision on July 30, 2026, which found claims of US Patent 10615925 unpatentable.

However, the search results reveal a more complex underlying litigation scenario involving multiple patents and a district court case. Specifically, a jury trial in the Eastern District of Texas (G+ Communications, LLC v. Samsung Electronics Co. LTD., et al., Case No: 2:22-CV-00078-JRG) initially found Samsung to infringe on two patents, including US Patent 10,736,130, and awarded damages. Subsequently, the PTAB invalidated US Patent 10,736,130, which led to a reduction in the damages award from the district court. The CAFC appeal (2023-1087) specifically concerns the PTAB's invalidation of US Patent 10,736,130, not US Patent 10,615,925 as stated in the initial prompt. This discrepancy needs to be noted. The initial prompt states CAFC case 2023-1087 is about patent 10615925. The search results (specifically) clearly indicate that CAFC 2023-1087 is about US Patent No. 10,736,130, where the PTAB found it anticipated by US Patent No. 10,615,925 ("Kwak"). This means the prior art was 10615925, but the patent at issue in the CAFC appeal 2023-1087 was 10736130. I will proceed with the information from the search results, noting the discrepancy with the provided patent number.

The Federal Circuit affirmed the PTAB's decision on July 30, 2026, finding that Samsung did not violate the Administrative Procedures Act (APA) and that substantial evidence supported the PTAB's findings that claims 1-5, 7-9, 14, and 20 of U.S. Patent No. 10,736,130 were anticipated by U.S. Patent No. 10,615,925 ("Kwak").

Here's a chronological breakdown of the key legal developments and outcome, integrating both the district court litigation and the parallel PTAB/CAFC proceedings:

Key Legal Developments and Outcome for G+ Communications v. Samsung Electronics

This case involves a patent infringement lawsuit filed by G+ Communications against Samsung Electronics in the U.S. District Court for the Eastern District of Texas, which was significantly impacted by a parallel inter partes review (IPR) proceeding at the Patent Trial and Appeal Board (PTAB) and a subsequent appeal to the U.S. Court of Appeals for the Federal Circuit (CAFC).

1. District Court Patent Infringement Litigation (E.D. Tex. Case No. 2:22-CV-00078-JRG):

• Filing & Initial Pleadings:
  • 2022-01-28: G+ Communications, LLC filed a patent infringement lawsuit against Samsung Electronics Co. Ltd. and Samsung Electronics America, Inc. in the U.S. District Court for the Eastern District of Texas.
  • 2022-09-28: The court issued a Memorandum Opinion and Order regarding G+ Communications' motion to dismiss Samsung's counterclaim concerning breach of FRAND obligations.
• Pre-trial Motions:
  • 2024-01-08: The court issued a Memorandum Opinion and Order addressing the imputability of a prior patent owner's (ZTE) actions regarding FRAND licensing obligations to G+.
• Trial Events & Verdicts:
  • 2024-01-19: A jury trial commenced. G+ Communications asserted infringement of claims from three patents: US Patent 8,761,776, US Patent 10,736,130, and US Patent 10,594,443. Samsung also asserted invalidity defenses.
  • 2024-01-26: The jury returned a unanimous verdict, finding that Samsung infringed claims from US Patent 8,761,776 and US Patent 10,736,130. The jury found US Patent 10,594,443 not infringed and invalid. The jury initially awarded G+ $67.5 million in damages.
  • 2024-03-01: Judge Rodney Gilstrap ordered a retrial on damages, citing concerns that the parties failed to adequately educate the jury on the difference between "running royalty" and "lump sum" damages, rendering the initial damages award "not sufficiently reliable."
  • 2024-04-17: A second jury trial on damages resulted in an award of $142 million against Samsung, more than doubling the initial award. This amount included $81 million attributed to US Patent 10,736,130 and $61 million to US Patent 8,761,776.

2. Parallel PTAB IPR Proceedings:

• IPR Filing & Institution:
  • Samsung filed an inter partes review (IPR) petition challenging the validity of claims 1-5, 7-9, 14, and 20 of U.S. Patent No. 10,736,130. (Note: This is the patent found to be anticipated by 10615925, not 10615925 itself).
• Final Written Decision:
  • 2024-04-29: The PTAB issued a final written decision finding claims 1-5, 7-9, 14, and 20 of U.S. Patent No. 10,736,130 unpatentable due to anticipation by U.S. Patent No. 10,615,925 ("Kwak").
• Effect on District Court Litigation: Following the PTAB's invalidation of US Patent 10,736,130, Judge Gilstrap effectively reduced the $142 million damages award by the $81 million attributed to that patent, leaving a damages award of $61 million related to US Patent 8,761,776.

3. Federal Circuit Appeal (CAFC Case No. 2023-1087):

• Appeal Filing: G+ Communications appealed the PTAB's decision concerning U.S. Patent No. 10,736,130 to the U.S. Court of Appeals for the Federal Circuit.
• Oral Argument/Briefing: G+ Communications argued that the PTAB violated the Administrative Procedures Act (APA) by relying on a new argument made by Samsung for the first time during oral hearing.
• Final Disposition:
  • 2026-07-30: The Federal Circuit affirmed the PTAB's ruling. The CAFC rejected G+ Communications' APA argument, finding that G+ had notice of the "may" language and related arguments, and that substantial evidence supported the PTAB's finding that U.S. Patent No. 10,615,925 ("Kwak") anticipated the challenged claims of U.S. Patent No. 10,736,130.

Outcome: The claims of U.S. Patent No. 10,736,130 (claims 1-5, 7-9, 14, and 20) were invalidated. This affirmation by the CAFC solidified the PTAB's decision, further reducing the potential damages for G+ Communications in its district court litigation against Samsung. While the initial prompt specified patent 10615925 as being at issue in the CAFC case, the detailed search results confirm that 10615925 was the prior art used to invalidate 10736130, which was the patent at issue in the CAFC appeal 2023-1087.

Despite multiple searches for the counsel of record representing G+ Communications in the U.S. Court of Appeals for the Federal Circuit (CAFC) case number 2023-1087, specific attorney names and their firms for this particular appeal are not explicitly listed in the publicly available search results.

While the underlying district court patent infringement case (G+ Communications LLC v. Samsung Electronics Co. LTD et al., case number 2:22-CV-00078, in the U.S. District Court for the Eastern District of Texas) saw representation by:

• Jennifer Truelove (Trial Counsel)

  • Firm: McKool Smith, P.C. (Offices in Austin, Dallas, Houston, Los Angeles, Marshall, New York, and Washington, D.C.)
  • Experience: Principal at McKool Smith, a leading trial firm known for securing significant patent litigation verdicts and frequently handling appeals before the Federal Circuit.

• Jason Sheasby (Trial Counsel)

  • Firm: Irell & Manella LLP (Offices in Los Angeles, Newport Beach, Washington, D.C.)
  • Experience: Seasoned trial attorney with deep appellate expertise in patent law before the Federal Circuit, PTAB, and the U.S. Supreme Court; recognized for strategic approach to litigation and involvement in high-stakes intellectual property disputes.

Other Irell & Manella attorneys mentioned in connection with the district court proceedings for G+ Communications include Lisa Glasser, Michael Harbour, Benjamin Manzin-Monnin, and Justin Linetski.

A different, voluntarily dismissed CAFC appeal (case 24-1902) between the same parties listed attorneys from Fabricant LLP for G+ Communications: Alfred Ross Fabricant, Peter Lambrianakos, and Vincent J. Rubino III. However, this does not confirm their involvement in case 2023-1087.

The CAFC opinion for case 2023-1087 was issued on July 30, 2026, affirming the PTAB's decision, but the available summaries of this opinion do not name the appellate counsel for G+ Communications. Without direct access to the official CAFC docket or the full text of the court's opinion for case 2023-1087, the specific counsel of record for the plaintiff(s) in this particular appellate case cannot be definitively identified from the provided information.

Despite an exhaustive search of public records, including legal news outlets reporting on the Federal Circuit's decision and general information regarding Samsung's past appellate representation, the specific counsel of record representing Samsung Electronics in the U.S. Court of Appeals for the Federal Circuit case 2023-1087, G+ Communications v. Samsung Electronics, could not be definitively identified from currently available public sources as of July 31, 2026. This may be due to the recency of the CAFC's decision on July 30, 2026.

Court opinions typically list the counsel for each party. However, a direct link to the full CAFC opinion for case 2023-1087, which would contain this information, was not found during the search.

While specific counsel for this appeal remains unconfirmed, Samsung Electronics is known to engage prominent law firms for its patent litigation and appeals. For example, Paul Hastings LLP has represented Samsung in other Federal Circuit appeals, with attorneys such as Naveen Modi, Joseph E. Palys, Igor V. Timofeyev, Daniel Zeilberger, and David M. Valente appearing as counsel for Samsung in different CAFC matters. Additionally, Phillip Lee serves as Principal Legal Counsel at Samsung Electronics US IP Center and has experience appearing before the Federal Circuit as in-house counsel.