Unified Patents v. Xifi Networks R&D Inc

Unified Patents, a member-based organization focused on deterring frivolous patent litigation and reducing the assertion of low-quality patents by Non-Practicing Entities (NPEs), has filed a Post-Grant Review (PGR) petition against Xifi Networks R&D Inc.. Unified Patents typically challenges patents held by NPEs, often referred to as "patent trolls," to protect its members across various technology sectors. Xifi Networks R&D Inc. identifies itself as an independent global wireless R&D enterprise that develops patented wireless broadband solutions and WiFi aggregator platforms. Despite Unified Patents' focus on NPEs, public records indicate Xifi Networks R&D Inc. is an operating company actively asserting its patent rights in ongoing litigation, consistent with a company protecting its intellectual property.

The patent at issue in this PGR is U.S. Patent 12,250,564, titled "Method and apparatus for processing bandwidth intensive data streams using virtual media access control and physical layers". This patent describes a wireless networking system designed to handle demanding data streams by dynamically allocating bandwidth across multiple transceivers, potentially in different frequency bands, using virtual Media Access Control (MAC) and Physical (PHY) layers. The system features an application layer with bandwidth requirements and a processing layer that assigns portions of actual bandwidths to virtual MAC and PHY layers. The patent was issued to Xifi Networks R&D Inc. on March 11, 2025, and the sole inventor is Sai C. Manapragada.

This case, PGR2025-00069, is currently pending before the Patent Trial and Appeal Board (PTAB) and has been instituted. The PTAB is an administrative body within the U.S. Patent and Trademark Office (USPTO) that reviews the patentability of claims in issued patents. Post-Grant Review (PGR) is a trial proceeding at the PTAB that allows for challenges to the validity of a patent on a broader range of grounds than inter partes review (IPR), including patent eligibility and written description, and must be filed within nine months of the patent's issuance. This venue is significant because it offers a potentially faster and less expensive alternative to district court litigation for challenging patent validity. The case is notable as it is linked to ongoing district court litigation where Xifi Networks R&D, Inc. has accused Samsung Electronics Co., Ltd. and Samsung Electronics America, Inc. of infringing several patents, including 12,250,564, in the Eastern District of Texas (Case No. 2:24-cv-01057). A jury trial in that district court case is currently set for October 19, 2026. The PTAB's decision on the validity of the '564 patent could significantly impact the ongoing district court infringement proceedings.

Legal Developments and Outcome for Unified Patents v. Xifi Networks R&D Inc (PGR2025-00069) and Related Litigation

This case involves a Post-Grant Review (PGR) proceeding at the Patent Trial and Appeal Board (PTAB) initiated by Unified Patents against Xifi Networks R&D Inc concerning U.S. Patent No. 12,250,564. This patent is also central to an ongoing patent infringement lawsuit filed by Xifi Networks R&D Inc in the Eastern District of Texas against Samsung.

Chronological Legal Developments:

December 17, 2024: District Court Complaint Filed
Xifi Networks R&D, Inc. filed a patent infringement lawsuit against Samsung Electronics Co., Ltd. and Samsung Electronics America, Inc. (collectively "Samsung") in the U.S. District Court for the Eastern District of Texas, Marshall Division (Case No. 2:24-cv-01057). The complaint alleges infringement of eleven patents, including U.S. Patent No. 12,250,564.

February 27, 2026: Joint Claim Construction Statement Filed in District Court
Xifi Networks R&D, Inc. and Samsung submitted an amended joint claim construction statement in preparation for an April 29, 2026, Claim Construction Hearing. This statement pertained to U.S. Patent No. 12,250,564 and ten other patents.

March 13, 2026: Motion to Stay Denied in District Court
District Judge Rodney Gilstrap denied Samsung's motion to stay the district court proceedings.

April 29, 2026: Claim Construction Hearing Held in District Court
A Claim Construction Hearing was held in the Eastern District of Texas regarding the disputed terms of the asserted patents, including U.S. Patent No. 12,250,564. The outcome of this hearing and any subsequent Markman order is not yet publicly available in the provided search results.

Filing and Institution of Parallel PTAB PGR
Unified Patents filed a Post-Grant Review (PGR) petition (PGR2025-00069) challenging the validity of U.S. Patent No. 12,250,564. The PTAB has instituted this PGR proceeding, and it is currently pending. The precise filing and institution dates were not found in the provided search results.

Effect of Parallel PTAB PGR on Litigation:

The institution of the PGR proceeding against U.S. Patent No. 12,250,564 by the PTAB could potentially impact the ongoing district court litigation between Xifi Networks R&D, Inc. and Samsung. A successful challenge to the patent's validity at the PTAB could lead to the cancellation of claims, thereby weakening or eliminating Xifi Networks R&D, Inc.'s infringement claims in the district court. However, despite the pending PGR, the district court denied a motion to stay the litigation, indicating that the court intends to proceed with the infringement case. The PTAB's institution decisions since October 2025 have been subject to centralized review by the USPTO Director, with a focus on efficiency, consistency, and statutory requirements for institution.

Unified Patents, the plaintiff in PGR2025-00069, frequently engages both in-house legal counsel and external law firms for its Post-Grant Review (PGR) and other PTAB proceedings. While specific counsel for PGR2025-00069 Unified Patents v. Xifi Networks R&D Inc were not directly identified through a dedicated docket search, Unified Patents' past activities and news releases indicate a consistent pattern of representation.

Unified Patents In-House Counsel (roles as per Unified Patents' general team and press releases):

• Jonathan Stroud
  • Role: Chief Legal Officer (CLO) & Chief Operating Officer (COO).
  • Firm: Unified Patents.
  • Note on experience: As CLO, Jonathan Stroud oversees Unified Patents' legal strategies, which include a significant number of PTAB challenges against what they deem low-quality patents. He has been quoted on matters related to patent litigation strategy and transparency.
• Jessica L.A. Marks
  • Role: In-house counsel.
  • Firm: Unified Patents.
  • Note on experience: Jessica Marks has been identified as in-house counsel representing Unified Patents in various reexamination and IPR proceedings, including challenges against patents owned by Arlington Technologies LLC, Helios Streaming LLC, and Graphite Charging Company LLC.
• Michelle Aspen
  • Role: In-house counsel.
  • Firm: Unified Patents.
  • Note on experience: Michelle Aspen has also been listed as in-house counsel for Unified Patents in multiple PTAB matters, such as the Arlington Technologies LLC and Helios Streaming LLC reexaminations, and an IPR against Ozmo Licensing LLC.
• T.J. Murphy
  • Role: In-house counsel.
  • Firm: Unified Patents.
  • Note on experience: T.J. Murphy has represented Unified Patents as in-house counsel in reexamination proceedings, including a challenge against a patent owned by AX Wireless, LLC. He also represented Unified Patents in an ex parte reexamination against eCeipt, LLC.
• David Seastrunk
  • Role: In-house counsel.
  • Firm: Unified Patents.
  • Note on experience: David Seastrunk has been noted as in-house counsel for Unified Patents in reexamination proceedings, such as those against AX Wireless, LLC.
• Alyssa Holtslander
  • Role: In-house counsel.
  • Firm: Unified Patents.
  • Note on experience: Alyssa Holtslander has been identified as in-house counsel representing Unified Patents in an ex parte reexamination against eCeipt, LLC.
• Kelly Hughes
  • Role: In-house counsel.
  • Firm: Unified Patents.
  • Note on experience: Kelly Hughes has been listed as in-house counsel for Unified Patents in ex parte reexamination proceedings, including one against SLS Manager Technologies LLC.
• Roshan Mansinghani
  • Role: In-house counsel.
  • Firm: Unified Patents.
  • Note on experience: Roshan Mansinghani has also been identified as in-house counsel representing Unified Patents in ex parte reexamination proceedings, such as the one against SLS Manager Technologies LLC.

External Law Firms and Attorneys (based on representation in other Unified Patents PTAB cases):

Unified Patents frequently works with various law firms specializing in patent litigation and PTAB proceedings. Examples from their reported cases include:

• Duane Morris LLP
  • Attorneys: John Baird, Paul Belnap.
  • Office Location: Specific office locations not provided in the search results, but Duane Morris has numerous offices globally.
  • Note on experience: John Baird and Paul Belnap have represented Unified Patents in PTAB proceedings, as mentioned in a challenge against an Ozmo Licensing LLC patent.
• Rothwell Figg Ernst & Manbeck, P.C.
  • Attorneys: Michael Jones, Jake Rosvold.
  • Office Location: Washington D.C. (primary office, but not explicitly stated in the search results for this context).
  • Note on experience: Michael Jones and Jake Rosvold have represented Unified Patents in reexamination proceedings, such as the ex parte reexamination against Arlington Technologies LLC.
• Slater Matsil, LLP
  • Attorney: Stephen Cortiaus.
  • Office Location: Dallas, TX (primary office, but not explicitly stated in the search results for this context).
  • Note on experience: Stephen Cortiaus has represented Unified Patents in ex parte reexamination proceedings, including a challenge against a patent owned by AX Wireless, LLC.
• Akin Gump Strauss Hauer & Feld LLP
  • Attorneys: Ryan Stronczer, Cono Carrano.
  • Office Location: Specific office locations not provided in the search results, but Akin Gump is a large international firm.
  • Note on experience: Ryan Stronczer and Cono Carrano have represented Unified Patents in ex parte reexamination proceedings, such as a challenge against a Helios Streaming LLC patent.

It is important to note that the specific counsel for PGR2025-00069 would be listed on the official docket for that case. The information above is based on Unified Patents' general practice and their representation in other publicly disclosed PTAB actions, as a direct docket entry for this case detailing counsel was not readily available through general web search. Therefore, the roles (e.g., lead counsel, of counsel) for the specific PGR2025-00069 case are not confirmed, but these individuals and firms are commonly involved in Unified Patents' PTAB challenges.

In the Post-Grant Review (PGR) case PGR2025-00069, Unified Patents v. Xifi Networks R&D Inc., the counsel of record representing Xifi Networks R&D Inc. has been identified through its related district court patent infringement case, Xifi Networks R&D, Inc. v. Samsung Electronics Co., Ltd. et al. (E.D. Tex. Case No. 2:24-cv-01057).

Based on filings in the related district court litigation, the following attorneys and firms represent Xifi Networks R&D Inc.:

• Andrea Leigh Fair

  • Role: Counsel
  • Firm: Miller Fair Henry PLLC
  • Note: Miller Fair Henry PLLC is listed as plaintiff's counsel in the related district court case.

• Aaron R. Fahrenkrog

  • Role: Counsel
  • Firm: Robins Kaplan LLP (Minneapolis office)
  • Note: Robins Kaplan LLP is listed as plaintiff's counsel in the related district court case. Fahrenkrog appeared at the Markman hearing on May 1, 2026.

• Logan James Drew

  • Role: Counsel
  • Firm: Robins Kaplan LLP (Minneapolis office)

• Nicole Olson

  • Role: Counsel
  • Firm: Robins Kaplan LLP

• Jessica Lee Gutierrez

  • Role: Counsel
  • Firm: Robins Kaplan LLP

• Garrett Parish

  • Role: Counsel
  • Firm: Not specified in search results, but appeared at the Markman hearing on May 1, 2026.

• Matthew Woods

  • Role: Counsel
  • Firm: Not specified in search results, but appeared at the Markman hearing on May 1, 2026.

• Rebecca Bact

  • Role: Counsel
  • Firm: Not specified in search results, but appeared at the Markman hearing on May 1, 2026.

It is important to note that while these attorneys are representing Xifi Networks R&D Inc. in the parallel district court patent infringement case, their specific roles and appearance in the PGR before the PTAB (PGR2025-00069) were not explicitly detailed in the search results. However, it is common for the same legal teams to handle related district court and PTAB proceedings. Cyrus A. appears to have filed a document on behalf of the Patent Owner in the PGR and related IPRs, indicating involvement in the PTAB proceedings.