Headwater Research LLC v. Google LLC - Patent Infringement
Summary
Headwater Research LLC filed a patent infringement lawsuit against Google LLC in the Northern District of California. Case 3:26-cv-01460-AMO was assigned to Judge Araceli Martínez-Olguín in San Francisco. Recent filings include procedural matters: ADR certifications by both parties and Google's reply to a motion seeking leave to amend its answer and counterclaims.
What changed
Headwater Research LLC initiated a patent infringement civil action against Google LLC in federal court. The case is in early procedural stages with both parties filing ADR certifications as required by local rules, and Google filing a reply in support of its motion for leave to amend its answer and counterclaims.
For Google, this represents an active patent litigation matter requiring legal defense. For Headwater Research, it is pursuing enforcement of patent rights. The ADR certifications indicate the parties are beginning the alternative dispute resolution process while litigation proceeds.
Archived snapshot
Apr 17, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
HEADWATER RESEARCH LLC v. Google LLC
Case Number: 3:26-cv-01460-AMO Judge: Martínez-Olguín, Araceli Location: San Francisco Case Type: Civil Case Basis: Federal Question Nature of Suit: Patent Date Filed:
February 26, 2026
Last Filing Date:
March 26, 2026
View Publicly Available Documents Case Summary No summary of this case is available
Recent Filings
| Date Filed | Docket Number | Document Description |
|---|---|---|
| 04-16-26 | 108 | REPLY (re [99] MOTION for Leave to File to Amend Answer and Counterclaims (Redacted Version) ) filed byGoogle LLC. (Attachments: # (1) Declaration of Jocelyn Ma, # (2) Exhibit 1)(Yang, Lance) |
| 04-13-26 | 106 | ADR Certification (ADR L.R. 3-5 b) of discussion of ADR options (Fenster, Marc) |
| 04-13-26 | 107 | Certificate of Interested Entities by Headwater Research LLC (Fenster, Marc) |
| 04-10-26 | 105 | ADR Certification (ADR L.R. 3-5 b) of discussion of ADR options (Ma, Jocelyn) |
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