Hilgers Graben PLLC

1. Closedfor plaintiffC.D. Cal.2026-09-01
   Colibri Heart Valve LLC v. Medtronic CoreValve LLC

   Colibri Heart Valve sues Medtronic CoreValve for infringing patents on transcatheter heart valve technology.

2. Openfor plaintiffTXND2026-07-31
   Lemko Corporation v. Microsoft Corporation

   Lemko Corporation sues Microsoft and Affirmed Networks for infringing its patents.

3. OpenTXED2025-12-19
   Fall Line Patents, LLC v. Wingstop Inc.

   Fall Line Patents sues major restaurant chains including Wingstop, IHOP, Applebee's, and Domino's for patent infringement.

4. Openfor plaintiffTXND2025-03-04
   Valtrus Innovations Ltd v. Google LLC

   Key Patent Innovations Limited and Valtrus Innovations Ltd are suing Google LLC for patent infringement in the U.S. District Court for the Northern District of Texas. The plaintiffs allege that Google has infringed one or more of their patents, though the specific patent numbers and technology at issue are not disclosed in the case record.

5. Openfor plaintiffTXND2022-01-11
   Valtrus Innovations Ltd. v. Google LLC

   Valtrus Innovations sued Google for infringing its patent in the Northern District of Texas.

Counsel sourced from public CourtListener docket records; firm names are normalized across spellings and office locations. Appearing for a party is not an endorsement of any position.