Google LLC v. Headwater Research LLC

Google LLC, a prominent American multinational technology corporation specializing in internet-related services and products, including its Android operating system and mobile devices, is the petitioner in this inter partes review (IPR). The respondent, Headwater Research LLC, is a Texas-based patent assertion entity (PAE) or non-practicing entity (NPE) with a portfolio focused on mobile and wireless technology. Headwater Research identifies and develops technological breakthroughs in areas like mobile operating systems, cloud technology, and mobile network services, and then licenses or asserts these patents.

This IPR arises from an underlying patent infringement lawsuit filed by Headwater Research LLC against Google LLC. The original complaint accused Google's mobile electronic devices, specifically mobile phones and tablets utilizing the Android Operating System, of infringing Headwater's patents, alleging that these devices use wireless communication technologies invented and patented by Headwater to reduce data consumption and extend battery life. The patent at issue in this IPR, U.S. Patent No. 9,179,359, generally relates to a wireless end-user device with differentiated network access status for various device applications. Headwater has also asserted U.S. Patent No. 9,609,544 against Google in related litigation.

The current proceeding, IPR2026-00049, is before the USPTO Patent Trial and Appeal Board (PTAB), where Google is challenging the validity of U.S. Patent No. 9,179,359. The PTAB has instituted a trial, indicating it found a reasonable likelihood that at least one claim of the patent is unpatentable. This IPR is a defensive maneuver by Google, part of a broader strategy by major tech companies to challenge patents asserted by NPEs. The underlying infringement litigation against Google by Headwater Research was filed in the Western District of Texas (e.g., Case No. 7:25-cv-00374, assigned to Judge David Counts) and also the Northern District of California (e.g., Case No. 5:26-cv-01460, assigned to District Judge Noel Wise), venues often targeted by NPEs. The case is notable due to Headwater Research's aggressive and successful patent assertion campaigns, including significant jury verdicts exceeding $175 million against Verizon and over $278 million against Samsung for related mobile and wireless technology patents. Google has also filed other IPRs against Headwater's patents, highlighting the ongoing legal battle over essential mobile device technologies.

The provided case, IPR2026-00049, is an Inter Partes Review (IPR) proceeding before the Patent Trial and Appeal Board (PTAB) of the USPTO, not a district court patent infringement litigation. IPRs are challenges to the validity of a patent and are often filed in response to an ongoing infringement lawsuit in a district court.

A related patent infringement lawsuit was filed by Headwater Research LLC against Google LLC concerning U.S. Patent No. 9,179,359 (the "'359 patent") and U.S. Patent No. 9,609,544 (the "'544 patent") in the U.S. District Court for the Western District of Texas, Midland/Odessa Division, Case No. 7:25-cv-00518. This case was later transferred to the U.S. District Court for the Northern District of California and assigned Case No. 5:26-cv-01460.

Here's a chronological overview of the key legal developments for the patent infringement litigation and the parallel IPR proceeding:

Patent Infringement Litigation: Headwater Research LLC v. Google LLC (originally W.D. Texas Case No. 7:25-cv-00518, transferred to N.D. Cal. Case No. 5:26-cv-01460)

• Filing & Initial Pleadings:

  • 2025-XX-XX (Exact date not found, but referenced as "7:25-cv-00518" indicating a 2025 filing): Headwater Research LLC filed a Complaint for Patent Infringement against Google LLC in the Western District of Texas, alleging infringement of U.S. Patent Nos. 9,179,359 and 9,609,544. The accused instrumentalities are mobile electronic devices, including phones and tablets, utilizing the Android Operating System.
  • Google LLC's knowledge of the '359 patent was alleged to be at least since January 2024, when Headwater served its complaint in Case No. 2:23-cv-00641, and Google's knowledge of the '544 patent since at least March 2023, from a Second Amended Complaint in Case No. 2:22-cv-00422.

• Pre-trial Motions of Substance:

  • 2025-12-11: Sealed motions were filed.
  • 2026-02-18: A motion to transfer venue was filed.
  • 2026-02-23: Headwater Research LLC filed an opposition to Google's motion to consolidate cases.
  • 2026-02-26: The case was transferred from the Western District of Texas (Case No. 7:25-cv-00231) to the U.S. District Court for the Northern District of California, where it was assigned Case No. 5:26-cv-01460. (Note: Search results show both 7:25-cv-00518 and 7:25-cv-00231 as originating cases in W.D. Texas for Headwater v. Google regarding these patents, with 7:25-cv-00231 explicitly noted as transferred).
  • 2026-03-05: Google LLC filed a Notice of Filing Regarding Administrative Motion to Consider Whether Cases Should Be Related.
  • 2026-04-23: The case was reassigned to District Judge Noel Wise, vacating all hearing and trial dates, but keeping existing briefing schedules and other deadlines. An Initial Case Management Conference was reset for July 16, 2026.

• Claim Construction (Markman) Outcomes:

  • As of May 15, 2026, the case is still active in the Northern District of California, and a Markman hearing outcome has not been publicly detailed for this specific litigation involving patent 9,179,359. The scheduled Initial Case Management Conference is for July 2026.

• Final Disposition / Present Posture:

  • The infringement litigation Headwater Research LLC v. Google LLC (N.D. Cal. Case No. 5:26-cv-01460) is currently active and pending.

Parallel PTAB IPR Proceedings

Headwater Research LLC has been involved in multiple IPR proceedings, with Google LLC being a petitioner in several, including the one at issue, IPR2026-00049.

• IPR2026-00049 (Google LLC v. Headwater Research LLC concerning U.S. Patent 9,179,359):

  • 2025-10-31: Google LLC filed the IPR petition challenging the validity of U.S. Patent No. 9,179,359.
  • 2026-04-01: The PTAB instituted a trial for IPR2026-00049, finding a reasonable likelihood that at least one claim of U.S. Patent 9,179,359 is unpatentable. The case status is "Pending - Instituted."

• Other Parallel IPRs involving Google LLC and Headwater Research LLC:

  • IPR2026-00048: Filed 2025-10-31 by Google LLC against Headwater Research LLC for U.S. Patent 10,237,757, but was "Not Instituted - Procedural" on 2026-02-24.
  • IPR2026-00137: Filed 2026-01-14 by Google LLC against Headwater Research LLC for U.S. Patent 9,647,918. Status is "Pending".
  • IPR2026-00138: Filed 2026-01-15 by Google LLC against Headwater Research LLC for U.S. Patent 9,609,544. Status is "Pending".
  • IPR2026-00203: Filed 2026-01-23 by Google LLC against Headwater Research LLC for U.S. Patent 9,232,403. Status is "Pending".
  • IPR2026-00271: Filed 2026-03-27 by Google LLC against Headwater Research LLC for U.S. Patent 9,491,564. Status is "Pending".

• Effect of IPRs on Litigation:

  • While specific rulings linking the institution of IPR2026-00049 to a stay or other direct impact on the Headwater Research LLC v. Google LLC district court litigation (N.D. Cal. Case No. 5:26-cv-01460) were not explicitly found in the provided search results, it is common for district court cases to be stayed pending the outcome of IPRs, especially after institution. The reassignment of the district court case and the vacating of trial dates in April 2026 could potentially be related to the ongoing IPRs, including IPR2026-00049, which was instituted on April 1, 2026.

It is important to note that Headwater Research LLC has been involved in other patent litigation and IPRs with different parties, achieving significant verdicts and settlements. For example, Headwater Research LLC secured a $175 million jury verdict against Verizon Communications on July 24, 2025, and previously settled a patent dispute with Samsung in September 2025 after a jury verdict of nearly $279 million in April 2025. Separately, a case involving Headwater Research LLC and other patents against Google (U.S. Patent Nos. 10,321,320 B2 and 9,615,192 B2) was closed on February 23, 2026, due to a likely confidential settlement before a Markman hearing. This distinct case highlights Headwater's active enforcement of its patent portfolio.The legal developments for the patent infringement litigation involving U.S. Patent No. 9,179,359, asserted by Headwater Research LLC against Google LLC, are intertwined with parallel Inter Partes Review (IPR) proceedings. The primary infringement lawsuit was initially filed in the U.S. District Court for the Western District of Texas and subsequently transferred to the Northern District of California.

Patent Infringement Litigation: Headwater Research LLC v. Google LLC

• Filing & Initial Pleadings: Headwater Research LLC filed a patent infringement complaint against Google LLC in the U.S. District Court for the Western District of Texas (Case No. 7:25-cv-00518, also referenced as 7:25-cv-00231 in transfer documents). The complaint alleged infringement of U.S. Patent Nos. 9,179,359 (the "'359 patent") and 9,609,544 (the "'544 patent") by Google's mobile electronic devices, including phones and tablets using the Android Operating System. Google was alleged to have knowledge of the '359 patent since at least January 2024 and the '544 patent since at least March 2023, based on earlier complaints served in related cases.
• Pre-trial Motions of Substance: The case saw sealed motions filed around December 2025. A motion to transfer venue was filed on February 18, 2026. Headwater Research LLC opposed a motion to consolidate cases on February 23, 2026.
• Transfer of Venue: On February 26, 2026, the case was transferred from the Western District of Texas to the U.S. District Court for the Northern District of California, where it was assigned Case No. 5:26-cv-01460.
• Case Reassignment & Scheduling: On April 23, 2026, the case was reassigned to District Judge Noel Wise. This reassignment led to the vacation of all previously scheduled hearing and trial dates, though existing briefing schedules and other deadlines remained unchanged. An Initial Case Management Conference was reset for July 16, 2026.
• Present Posture: The patent infringement litigation, Headwater Research LLC v. Google LLC (N.D. Cal. Case No. 5:26-cv-01460), is currently active and pending. No Markman hearing outcome or trial events have occurred as of May 15, 2026.

Parallel PTAB IPR Proceedings on Asserted Patents

Google LLC has initiated multiple IPRs against Headwater Research LLC's patents, including U.S. Patent No. 9,179,359.

• IPR2026-00049 (Google LLC v. Headwater Research LLC concerning U.S. Patent 9,179,359):

  • 2025-10-31: Google LLC filed the IPR petition challenging the validity of U.S. Patent No. 9,179,359.
  • 2026-04-01: The Patent Trial and Appeal Board (PTAB) instituted a trial in IPR2026-00049, determining there was a reasonable likelihood that at least one claim of the '359 patent is unpatentable. The IPR is currently listed as "Pending - Instituted".

• Other Related IPRs: Google LLC has also filed other IPRs against Headwater Research LLC patents involved in the litigation, including IPR2026-00137 (U.S. Patent 9,647,918, filed January 14, 2026, status Pending) and IPR2026-00138 (U.S. Patent 9,609,544, filed January 15, 2026, status Pending).

• Effect on Litigation: While specific court orders explicitly staying the district court litigation pending IPR outcomes were not found, the reassignment of the district court case to a new judge and the subsequent vacating of all hearing and trial dates in April 2026 could be influenced by the ongoing IPR proceedings, particularly the institution of IPR2026-00049 on April 1, 2026.

Headwater Research LLC has been an active patent litigant, securing substantial jury verdicts and settlements in other cases. For instance, Headwater received a $175 million jury verdict against Verizon Communications on July 24, 2025. The company also reached a confidential settlement with Samsung in September 2025, following an April 2025 jury verdict of nearly $279 million in a separate patent infringement case. Additionally, another patent infringement case between Headwater Research LLC and Google LLC, involving different patents (U.S. Patent Nos. 10,321,320 B2 and 9,615,192 B2), was closed on February 23, 2026, likely due to a confidential settlement before a Markman hearing.

Google LLC, the petitioner in IPR2026-00049, is represented by attorneys from Finnegan, Henderson, Farabow, Garrett, & Dunner LLP, as well as several in-house counsel.

The counsel of record for Google LLC are:

Outside Counsel (Finnegan, Henderson, Farabow, Garrett, & Dunner LLP)

• Erika H. Arner (Lead Counsel)
  • Firm: Finnegan, Henderson, Farabow, Garrett, & Dunner LLP, Reston, VA.
  • Note: Arner is a highly experienced patent litigator focusing on PTAB proceedings, including inter partes reviews. Her practice often involves electrical and computer technologies.
• Daniel C. Tucker (Counsel)
  • Firm: Finnegan, Henderson, Farabow, Garrett, & Dunner LLP, Reston, VA.
  • Note: Tucker's practice involves patent litigation and post-grant proceedings before the USPTO.
• Elliot Cook (Counsel)
  • Firm: Finnegan, Henderson, Farabow, Garrett, & Dunner LLP, Reston, VA.
  • Note: Cook is involved in patent litigation, particularly in post-grant proceedings such as IPRs.
• Michael V. Young (Counsel)
  • Firm: Finnegan, Henderson, Farabow, Garrett, & Dunner LLP, Reston, VA.
  • Note: Young's practice includes patent litigation and inter partes reviews.
• Alexander M. Boyer (Counsel)
  • Firm: Finnegan, Henderson, Farabow, Garrett, & Dunner LLP, Reston, VA.
  • Note: Boyer works on patent litigation and post-grant proceedings at the PTAB.
• Bradford C. Schulz (Counsel)
  • Firm: Finnegan, Henderson, Farabow, Garrett, & Dunner LLP, Reston, VA.
  • Note: Schulz's practice includes patent litigation and post-grant proceedings.
• Christopher B. Anderson (Counsel)
  • Firm: Finnegan, Henderson, Farabow, Garrett, & Dunner LLP, Reston, VA.
  • Note: Anderson is involved in patent litigation and IPRs.
• Umber Aggarwal (Counsel)
  • Firm: Finnegan, Henderson, Farabow, Garrett, & Dunner LLP, Reston, VA.
  • Note: Aggarwal practices in patent litigation and post-grant proceedings.
• Abhay A. Watwe (Counsel)
  • Firm: Finnegan, Henderson, Farabow, Garrett, & Dunner LLP, Reston, VA.
  • Note: Watwe's experience includes patent litigation and IPRs.
• Kathleen C. Galleher (Counsel)
  • Firm: Finnegan, Henderson, Farabow, Garrett, & Dunner LLP, Reston, VA.
  • Note: Galleher is involved in patent litigation and post-grant proceedings.

In-House Counsel (Google LLC)

While the Certificate of Service lists only Finnegan attorneys, Google typically has in-house counsel overseeing their patent litigation. Based on general knowledge of Google's legal team and information from related searches, notable in-house counsel include:

• Michael Lee (Director, Head of Patents)
  • Role: In-house (Director, Head of Patents).
  • Firm: Google LLC.
  • Note: Leads Google's global patent matters, including portfolio development, patent operations, licensing, transactions, and policy. Previously at Cisco Systems and Yahoo!, with experience in patent litigation.
• Laura Sheridan (Head of Patent Policy)
  • Role: In-house (Head of Patent Policy).
  • Firm: Google LLC.
  • Note: Advocates for effective patent examination and a fair patent litigation system, with experience in patent prosecution, litigation, due diligence, and post-grant practice.
• Ola Adekunle (Senior Patent Counsel and Head of Engagement Readiness)
  • Role: In-house (Senior Patent Counsel).
  • Firm: Google LLC.
  • Note: Focuses on mitigating IP risks, supporting strategic third-party engagements, and leveraging Google's patent portfolio.
• Joshua L. Goldberg (Counsel)
  • Role: In-house Counsel.
  • Firm: Google LLC.
  • Note: Likely works within Google's legal department on patent-related matters.
• Daniel F. Klodowski (Counsel)
  • Role: In-house Counsel.
  • Firm: Google LLC.
  • Note: Likely works within Google's legal department on patent-related matters.
• Pier D. DeRoo (Counsel)
  • Role: In-house Counsel.
  • Firm: Google LLC.
  • Note: Likely works within Google's legal department on patent-related matters.
• Christopher C. Johns (Counsel)
  • Role: In-house Counsel.
  • Firm: Google LLC.
  • Note: Likely works within Google's legal department on patent-related matters.
• Kassandra M. Officer (Counsel)
  • Role: In-house Counsel.
  • Firm: Google LLC.
  • Note: Likely works within Google's legal department on patent-related matters.

Headwater Research LLC is represented by attorneys from Russ August & Kabat in the IPR2026-00049 proceeding and in related patent infringement litigation against Google LLC.

Here's a breakdown of the counsel of record for Headwater Research LLC:

Firm: Russ August & Kabat (Los Angeles, CA)

• Marc A. Fenster (Lead Counsel for IPR2026-00049, also listed in district court cases).
  • Experience: Co-chair of Russ August & Kabat's litigation department. Known for significant patent infringement verdicts, including a $175 million verdict for Headwater Research against Verizon and over $278 million against Samsung for related mobile and wireless technology patents.
• Reza Mirzaie (Lead Counsel for IPR2026-00049, also listed in district court cases).
  • Experience: Part of the trial team that secured significant verdicts for Headwater Research against Verizon and Samsung.
• Kristopher R. Davis (Of Counsel).
  • Experience: Member of the trial team for Headwater Research's verdicts against Verizon and Samsung.
• Brian D. Ledahl (Of Counsel).
  • Experience: Contributed to the trial team for Headwater Research's successful verdicts against Verizon and Samsung.
• Benjamin T. Wang (Of Counsel).
  • Experience: Involved in the trial team for Headwater Research's patent infringement cases against Verizon and Samsung.
• Dale Chang (Of Counsel).
  • Experience: Member of the trial team that achieved favorable verdicts for Headwater Research against Verizon and Samsung.
• Philip X. Wang (Of Counsel).
  • Experience: Appeared as counsel for Headwater Research in infringement cases, including against Verizon.
• Jason M. Wietholter (Of Counsel).
  • Experience: Part of the trial team for Headwater Research in its successful patent assertions against Verizon and Samsung.
• Neil A. Rubin (Of Counsel).
  • Experience: Listed as counsel for Headwater Research in patent infringement cases, such as against Verizon.
• James S. Tsuei (Of Counsel).
  • Experience: Involved in the trial team that secured favorable verdicts for Headwater Research against Verizon and Samsung.
• Paul A. Kroeger (Of Counsel).
  • Experience: Appeared as counsel for Headwater Research in patent infringement cases, including against Verizon.
• James N. Pickens (Of Counsel).
  • Experience: Listed as counsel for Headwater Research in patent litigation.
• Minna Jay (Of Counsel).
  • Experience: Member of the trial team for Headwater Research's verdict against Verizon.
• Mackenzie Paladino (Of Counsel).
  • Experience: Member of the trial team for Headwater Research's verdict against Verizon.
• Adam Hoffman (Of Counsel).
  • Experience: Member of the trial team for Headwater Research's verdict against Verizon.
• Qi (Peter) Tong (Of Counsel).
  • Experience: Listed as counsel for Headwater Research in related litigation against Google in the Northern District of California.
• James A. Milkey (Of Counsel, listed as backup counsel in IPR2026-00049).

The IPR proceeding, IPR2026-00049, explicitly names Reza Mirzaie as lead counsel and James A. Milkey as backup counsel for Headwater Research LLC.

It's important to note that Headwater Research LLC has been actively involved in several patent infringement lawsuits against major technology and telecommunications companies, and attorneys from Russ August & Kabat have consistently represented them in these matters, often achieving significant results. The underlying patent infringement cases against Google are Headwater Research LLC v. Google LLC, No. 7:25-cv-00374 (W.D. Tex.) and Headwater Research LLC v. Google LLC, No. 5:26-cv-01460 (N.D. Cal.).