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HEADWATER RESEARCH LLC v. Google LLC - 5:26-cv-01545

HEADWATER RESEARCH LLC v. Google LLC (Case No. 5:26-cv-01545), filed on Feb 23, 2026 in the District Court, N.D. California involving patent infringement. This case involves patent infringement claims between the parties. Explore details about the litigants, key filings, and major docket updates.

Case Details

Case Number
5:26-cv-01545
Filing Date
Feb 23, 2026
Cause of Action
Patent Infringement
Status
-
Court
District Court, N.D. California
Nature of Suit
Patent

Parties Involved

The following parties are involved in this case, with their respective legal representatives for the case.

NameRepresented By
Google LLC -
Headwater Research LLC -

Patents Involved

Patents not found - set an alert to get notified when patents are added.

Docket Entries

The Docket Entries section provides a chronological list of all significant filings and court actions in this case.

DateDocket EntryType

Set alerts for critical docket entry

Jan 27, 2026Reply Claim Construction Brief regarding 65 Response, by Google LLC. (Attachments: # 1 Declaration of Lance Yang in Support of Defendant Google LLC's Reply Claim Construction Brief, # 2 Exhibit D to Yang Declaration, # 3 Exhibit E to Yang Declaration, # 4 Exhibit F to Yang Declaration, # 5 Exhibit G to Yang Declaration, # 6 Exhibit H to Yang Declaration, # 7 Exhibit I to Yang Declaration, # 8 Exhibit J to Yang Declaration)(Yang, Lance) (Entered: 01/27/2026)Attachment
Jan 27, 2026Reply Claim Construction Brief regarding 65 Response, by Google LLC. (Attachments: # 1 Declaration of Lance Yang in Support of Defendant Google LLC's Reply Claim Construction Brief, # 2 Exhibit D to Yang Declaration, # 3 Exhibit E to Yang Declaration, # 4 Exhibit F to Yang Declaration, # 5 Exhibit G to Yang Declaration, # 6 Exhibit H to Yang Declaration, # 7 Exhibit I to Yang Declaration, # 8 Exhibit J to Yang Declaration)(Yang, Lance) (Entered: 01/27/2026)Attachment
Jan 27, 2026Reply Claim Construction Brief regarding 65 Response, by Google LLC. (Attachments: # 1 Declaration of Lance Yang in Support of Defendant Google LLC's Reply Claim Construction Brief, # 2 Exhibit D to Yang Declaration, # 3 Exhibit E to Yang Declaration, # 4 Exhibit F to Yang Declaration, # 5 Exhibit G to Yang Declaration, # 6 Exhibit H to Yang Declaration, # 7 Exhibit I to Yang Declaration, # 8 Exhibit J to Yang Declaration)(Yang, Lance) (Entered: 01/27/2026)Attachment
Jan 27, 2026Reply Claim Construction Brief regarding 65 Response, by Google LLC. (Attachments: # 1 Declaration of Lance Yang in Support of Defendant Google LLC's Reply Claim Construction Brief, # 2 Exhibit D to Yang Declaration, # 3 Exhibit E to Yang Declaration, # 4 Exhibit F to Yang Declaration, # 5 Exhibit G to Yang Declaration, # 6 Exhibit H to Yang Declaration, # 7 Exhibit I to Yang Declaration, # 8 Exhibit J to Yang Declaration)(Yang, Lance) (Entered: 01/27/2026)Attachment
Jan 27, 2026Reply Claim Construction Brief regarding 65 Response, by Google LLC. (Attachments: # 1 Declaration of Lance Yang in Support of Defendant Google LLC's Reply Claim Construction Brief, # 2 Exhibit D to Yang Declaration, # 3 Exhibit E to Yang Declaration, # 4 Exhibit F to Yang Declaration, # 5 Exhibit G to Yang Declaration, # 6 Exhibit H to Yang Declaration, # 7 Exhibit I to Yang Declaration, # 8 Exhibit J to Yang Declaration)(Yang, Lance) (Entered: 01/27/2026)Attachment
Jan 27, 2026Reply Claim Construction Brief regarding 65 Response, by Google LLC. (Attachments: # 1 Declaration of Lance Yang in Support of Defendant Google LLC's Reply Claim Construction Brief, # 2 Exhibit D to Yang Declaration, # 3 Exhibit E to Yang Declaration, # 4 Exhibit F to Yang Declaration, # 5 Exhibit G to Yang Declaration, # 6 Exhibit H to Yang Declaration, # 7 Exhibit I to Yang Declaration, # 8 Exhibit J to Yang Declaration)(Yang, Lance) (Entered: 01/27/2026)Attachment
Jan 27, 2026Reply Claim Construction Brief regarding 65 Response, by Google LLC. (Attachments: # 1 Declaration of Lance Yang in Support of Defendant Google LLC's Reply Claim Construction Brief, # 2 Exhibit D to Yang Declaration, # 3 Exhibit E to Yang Declaration, # 4 Exhibit F to Yang Declaration, # 5 Exhibit G to Yang Declaration, # 6 Exhibit H to Yang Declaration, # 7 Exhibit I to Yang Declaration, # 8 Exhibit J to Yang Declaration)(Yang, Lance) (Entered: 01/27/2026)Attachment
Feb 13, 2026Opposed MOTION to Consolidate Cases (Case Management Motion) by Google LLC. (Attachments: # 1 Declaration of Jocelyn Ma in Support, # 2 Exhibit A, # 3 Exhibit B, # 4 Exhibit C, # 5 Exhibit D, # 6 Exhibit E, # 7 Exhibit F, # 8 Exhibit G, # 9 Exhibit H, # 10 Exhibit I, # 11 Exhibit J, # 12 Proposed Order). Motions referred to Judge Derek T. Gilliland. (Yang, Lance) (Entered: 02/13/2026)Attachment
Feb 13, 2026Opposed MOTION to Consolidate Cases (Case Management Motion) by Google LLC. (Attachments: # 1 Declaration of Jocelyn Ma in Support, # 2 Exhibit A, # 3 Exhibit B, # 4 Exhibit C, # 5 Exhibit D, # 6 Exhibit E, # 7 Exhibit F, # 8 Exhibit G, # 9 Exhibit H, # 10 Exhibit I, # 11 Exhibit J, # 12 Proposed Order). Motions referred to Judge Derek T. Gilliland. (Yang, Lance) (Entered: 02/13/2026)Attachment
Feb 13, 2026Opposed MOTION to Consolidate Cases (Case Management Motion) by Google LLC. (Attachments: # 1 Declaration of Jocelyn Ma in Support, # 2 Exhibit A, # 3 Exhibit B, # 4 Exhibit C, # 5 Exhibit D, # 6 Exhibit E, # 7 Exhibit F, # 8 Exhibit G, # 9 Exhibit H, # 10 Exhibit I, # 11 Exhibit J, # 12 Proposed Order). Motions referred to Judge Derek T. Gilliland. (Yang, Lance) (Entered: 02/13/2026)Attachment
Feb 13, 2026Opposed MOTION to Consolidate Cases (Case Management Motion) by Google LLC. (Attachments: # 1 Declaration of Jocelyn Ma in Support, # 2 Exhibit A, # 3 Exhibit B, # 4 Exhibit C, # 5 Exhibit D, # 6 Exhibit E, # 7 Exhibit F, # 8 Exhibit G, # 9 Exhibit H, # 10 Exhibit I, # 11 Exhibit J, # 12 Proposed Order). Motions referred to Judge Derek T. Gilliland. (Yang, Lance) (Entered: 02/13/2026)Attachment
Feb 13, 2026Opposed MOTION to Consolidate Cases (Case Management Motion) by Google LLC. (Attachments: # 1 Declaration of Jocelyn Ma in Support, # 2 Exhibit A, # 3 Exhibit B, # 4 Exhibit C, # 5 Exhibit D, # 6 Exhibit E, # 7 Exhibit F, # 8 Exhibit G, # 9 Exhibit H, # 10 Exhibit I, # 11 Exhibit J, # 12 Proposed Order). Motions referred to Judge Derek T. Gilliland. (Yang, Lance) (Entered: 02/13/2026)Attachment
Feb 13, 2026Opposed MOTION to Consolidate Cases (Case Management Motion) by Google LLC. (Attachments: # 1 Declaration of Jocelyn Ma in Support, # 2 Exhibit A, # 3 Exhibit B, # 4 Exhibit C, # 5 Exhibit D, # 6 Exhibit E, # 7 Exhibit F, # 8 Exhibit G, # 9 Exhibit H, # 10 Exhibit I, # 11 Exhibit J, # 12 Proposed Order). Motions referred to Judge Derek T. Gilliland. (Yang, Lance) (Entered: 02/13/2026)Attachment
Feb 13, 2026Opposed MOTION to Consolidate Cases (Case Management Motion) by Google LLC. (Attachments: # 1 Declaration of Jocelyn Ma in Support, # 2 Exhibit A, # 3 Exhibit B, # 4 Exhibit C, # 5 Exhibit D, # 6 Exhibit E, # 7 Exhibit F, # 8 Exhibit G, # 9 Exhibit H, # 10 Exhibit I, # 11 Exhibit J, # 12 Proposed Order). Motions referred to Judge Derek T. Gilliland. (Yang, Lance) (Entered: 02/13/2026)Attachment
Feb 13, 2026Opposed MOTION to Consolidate Cases (Case Management Motion) by Google LLC. (Attachments: # 1 Declaration of Jocelyn Ma in Support, # 2 Exhibit A, # 3 Exhibit B, # 4 Exhibit C, # 5 Exhibit D, # 6 Exhibit E, # 7 Exhibit F, # 8 Exhibit G, # 9 Exhibit H, # 10 Exhibit I, # 11 Exhibit J, # 12 Proposed Order). Motions referred to Judge Derek T. Gilliland. (Yang, Lance) (Entered: 02/13/2026)Attachment
Feb 13, 2026Opposed MOTION to Consolidate Cases (Case Management Motion) by Google LLC. (Attachments: # 1 Declaration of Jocelyn Ma in Support, # 2 Exhibit A, # 3 Exhibit B, # 4 Exhibit C, # 5 Exhibit D, # 6 Exhibit E, # 7 Exhibit F, # 8 Exhibit G, # 9 Exhibit H, # 10 Exhibit I, # 11 Exhibit J, # 12 Proposed Order). Motions referred to Judge Derek T. Gilliland. (Yang, Lance) (Entered: 02/13/2026)Attachment
Feb 13, 2026Opposed MOTION to Consolidate Cases (Case Management Motion) by Google LLC. (Attachments: # 1 Declaration of Jocelyn Ma in Support, # 2 Exhibit A, # 3 Exhibit B, # 4 Exhibit C, # 5 Exhibit D, # 6 Exhibit E, # 7 Exhibit F, # 8 Exhibit G, # 9 Exhibit H, # 10 Exhibit I, # 11 Exhibit J, # 12 Proposed Order). Motions referred to Judge Derek T. Gilliland. (Yang, Lance) (Entered: 02/13/2026)Attachment
Feb 13, 2026Opposed MOTION to Consolidate Cases (Case Management Motion) by Google LLC. (Attachments: # 1 Declaration of Jocelyn Ma in Support, # 2 Exhibit A, # 3 Exhibit B, # 4 Exhibit C, # 5 Exhibit D, # 6 Exhibit E, # 7 Exhibit F, # 8 Exhibit G, # 9 Exhibit H, # 10 Exhibit I, # 11 Exhibit J, # 12 Proposed Order). Motions referred to Judge Derek T. Gilliland. (Yang, Lance) (Entered: 02/13/2026)Attachment
Feb 13, 2026Opposed MOTION to Consolidate Cases (Case Management Motion) by Google LLC. (Attachments: # 1 Declaration of Jocelyn Ma in Support, # 2 Exhibit A, # 3 Exhibit B, # 4 Exhibit C, # 5 Exhibit D, # 6 Exhibit E, # 7 Exhibit F, # 8 Exhibit G, # 9 Exhibit H, # 10 Exhibit I, # 11 Exhibit J, # 12 Proposed Order). Motions referred to Judge Derek T. Gilliland. (Yang, Lance) (Entered: 02/13/2026)Attachment