2 Stories: California Sues 3D Printer Filament Maker Polymaker as HPE Faces New Patent Lawsuit!

The State of California, acting through San Diego County, has sued Polymaker, a manufacturer of 3D printer filament, alleging that the company marketed its materials to customers involved in producing unserialized firearms, commonly known as “ghost guns.” The lawsuit, filed October 5, 2026, claims the company’s marketing practices violate California law; Polymaker’s filament also has legitimate applications, and the allegations have not been proven in court. Meanwhile, Hewlett Packard Enterprise (HPE) faces a separate patent infringement lawsuit filed by Innovations In Memory LLC in the U.S. District Court for the Eastern District of Texas on October 9, 2026, under case number 2:26-cv-00918. The new case adds to HPE’s legal challenges involving intellectual property, although further details about the specific patent claims require examination of the complaint. Read more about the California lawsuit against Polymaker and the Innovations In Memory LLC v. Hewlett Packard Enterprise case.