Untitled case

This patent infringement litigation, Massively Broadband LLC v. Samsung Electronics Co., Ltd. et al., case number 2:25-cv-00608, is currently active in the U.S. District Court for the Eastern District of Texas. The plaintiff, Massively Broadband LLC, is an entity created in February 2023 that acquired over 20 U.S. patents from named inventor Theodore S. Rappaport, suggesting it operates as a non-practicing entity (NPE) or patent assertion entity (PAE). The defendants are Samsung Electronics Co., Ltd. and its American subsidiary, Samsung Electronics America, Inc., both major operating companies in the electronics and telecommunications industries. The lawsuit alleges that various "Samsung Accused Products" infringe the asserted patents, specifically related to wireless broadband technology.

The primary patent at issue, U.S. Patent No. 7,676,194, is part of a group Massively Broadband refers to as "Intelligent Wireless Broadband Relay Patents," implying its focus on systems and methods for enhancing wireless communication networks. While a detailed abstract for the '194 patent was not directly obtained via general web search, its inclusion within this category indicates its technical scope. The case is being heard by Judge Rodney Gilstrap in the Marshall Division of the Eastern District of Texas. This venue is particularly notable in patent litigation for its reputation as being plaintiff-friendly, offering procedural advantages that can make defending against patent suits predictably expensive for accused infringers. The Eastern District of Texas has also recently regained its status as a top forum for patent cases.

This litigation is significant as it exemplifies a common NPE assertion pattern, where a newly formed entity acquires a substantial patent portfolio and promptly initiates lawsuits against established technology companies. The transfer of a large patent portfolio from an inventor to Massively Broadband LLC, followed by immediate litigation against a major player like Samsung, underscores this trend. Furthermore, Samsung Electronics America Inc. has already filed an Inter Partes Review (IPR2026-00086) against Massively Broadband LLC concerning a different wireless network quality patent (not specifically 7,676,194), indicating a multi-front legal battle over the asserted intellectual property. This IPR filing is a common defensive strategy in response to patent infringement assertions, aiming to challenge the validity of the patents at the Patent Trial and Appeal Board (PTAB).

Key Legal Developments and Outcome

The patent infringement litigation, Massively Broadband LLC v. Samsung Electronics Co., Ltd. et al. (2:25-cv-00608), is ongoing in the Eastern District of Texas. Here's a chronological summary of key developments:

1. Filing & Initial Pleadings:

• Complaint Filed (2025-06-06): Massively Broadband LLC initiated the lawsuit against Samsung Electronics Co., Ltd. and Samsung Electronics America, Inc. on June 6, 2025.

2. Pre-trial Motions of Substance:

• As of May 28, 2026, detailed information regarding specific pre-trial motions such as motions to dismiss, transfer, or stay pending IPR for this case (2:25-cv-00608) is not readily available in the provided search results. However, it is common for such motions to be filed early in patent litigation.
• Discovery Order and Document Production (2025-10-21): Samsung's counsel, Quinn Emanuel Urquhart & Sullivan, LLP, sent a letter to Massively Broadband's counsel, K&L Gates LLP, regarding the production of documents. This letter outlined exemplary categories of documents Samsung expected to be produced under the existing Discovery Order, including those related to alleged infringement, damages, and the earliest awareness of Samsung's activities. This indicates that discovery was actively underway by late 2025.

3. Claim Construction (Markman) Outcomes:

• There is no available information in the search results regarding a Markman hearing or claim construction order in this specific case (2:25-cv-00608) as of the current date.

4. Parallel PTAB IPR Proceedings:

• IPR2026-00086 Filed (2025-10-24): Samsung Electronics America Inc. filed an Inter Partes Review (IPR) petition, IPR2026-00086, against Massively Broadband LLC. While the specific patent for this IPR was not 7,676,194, it concerns a different wireless network quality patent and is indicative of Samsung's defensive strategy.
• Institution Decision - Discretionary Denial (2026-02-10): The Patent Trial and Appeal Board (PTAB) issued a discretionary denial for the institution of IPR2026-00086 on February 10, 2026. This means the PTAB chose not to institute the IPR, allowing the validity of that particular patent to continue to be litigated in the district court.

Plaintiff Massively Broadband LLC is represented by attorneys from K&L Gates LLP and Miller Fair Henry PLLC.

Here is a list of the counsel of record for the plaintiff:

K&L Gates LLP

K&L Gates is a global law firm with a significant intellectual property litigation practice, frequently litigating in key patent venues including the Eastern District of Texas, the Federal Circuit, and the PTAB.

• Patrick J. McElhinny (Lead Counsel)
  • Firm: K&L Gates LLP (Pittsburgh, Pennsylvania office).
  • Experience Note: McElhinny brings expertise in complex patent litigation involving various technologies. He was listed as counsel for Massively Broadband LLC in a letter from Samsung's counsel regarding document production. He also represented Massively Broadband in the IPR2026-00086 proceeding.
• Mark G. Knedeisen (Counsel)
  • Firm: K&L Gates LLP (Pittsburgh, Pennsylvania office).
  • Experience Note: Knedeisen was listed as counsel for Massively Broadband LLC in a letter from Samsung's counsel regarding document production.
• Christopher Michael Verdini (Counsel)
  • Firm: K&L Gates LLP.
  • Experience Note: Verdini was listed as counsel for Massively Broadband LLC in a letter from Samsung's counsel regarding document production.
• Anna Shabalov (Counsel)
  • Firm: K&L Gates LLP (Pittsburgh, Pennsylvania office).
  • Experience Note: Shabalov was listed as counsel for Massively Broadband LLC in a letter from Samsung's counsel regarding document production.
• Rachel Ellenberger (Counsel)
  • Firm: K&L Gates LLP.
  • Experience Note: Ellenberger was listed as counsel for Massively Broadband LLC in a letter from Samsung's counsel regarding document production.

Miller Fair Henry PLLC

• Andrea Leigh Fair (Local Counsel)
  • Firm: Miller Fair Henry PLLC.
  • Experience Note: It is common for firms outside the Eastern District of Texas to associate with local counsel for litigation in that court.

The defendants, Samsung Electronics Co., Ltd. and Samsung Electronics America, Inc., are represented by prominent intellectual property litigation firms Quinn Emanuel Urquhart & Sullivan, LLP and Haynes and Boone, LLP. They also appear to have in-house counsel involved in managing patent litigation.

Here is a list of the counsel of record for the defendants:

Quinn Emanuel Urquhart & Sullivan, LLP

Quinn Emanuel is a globally recognized law firm with a strong focus on high-stakes intellectual property and patent litigation, frequently representing major technology companies as both plaintiffs and defendants. The firm has a notable track record in patent cases in the Eastern District of Texas and before the PTAB.

• Kevin Hardy (Counsel)
  • Firm: Quinn Emanuel Urquhart & Sullivan, LLP (Washington D.C. office).
  • Experience Note: Kevin Hardy has appeared on behalf of all defendants in this case.
• Sean S. Pak (Counsel)
  • Firm: Quinn Emanuel Urquhart & Sullivan, LLP (San Francisco office).
  • Experience Note: Sean Pak is a co-chair of Quinn Emanuel's patent litigation practice and brings deep technical expertise in electrical engineering and artificial intelligence.
• John Thomas McKee (Counsel)
  • Firm: Quinn Emanuel Urquhart & Sullivan, LLP (New York office).
  • Experience Note: John McKee is a leading attorney representing petitioners at the PTAB.
• Matthew D. Robson (Counsel)
  • Firm: Quinn Emanuel Urquhart & Sullivan, LLP (New York office).

Haynes and Boone, LLP

Haynes and Boone is a Chambers-ranked intellectual property practice with a large presence in Texas, known for its patent litigation and post-grant review work before the USPTO.

• Melissa Richards Smith (Counsel)
  • Firm: Gillam & Smith, LLP (Marshall, Texas office).
  • Experience Note: Melissa Smith is likely acting as local counsel, as is common for firms outside the Eastern District of Texas. She is listed as counsel for all defendants.

In-House Counsel

Samsung maintains an in-house legal team that manages high-exposure patent litigation matters and coordinates with external counsel.

• Alex Verbin Chachkes (In-House Counsel)
  • Firm: Chachkes Law PLLC / Samsung (specific role not detailed, but often indicates in-house involvement or close coordination).
  • Experience Note: While listed with "Chachkes Law PLLC," his appearance alongside other Samsung counsel suggests an in-house or closely affiliated role in managing the litigation for Samsung.