Lone Star Document Management, LLC v. Docuphase

Filed2026-08-03
CourtM.D. Fla.
Docket8:26-cv-02233
Nature of suit830 Patent
Practice areaPatent
PlaintiffLone Star Document Management, LLC
DefendantDocuphase
ComplaintDownload the complaint (PDF, free)

What the complaint alleges

Lone Star Document Management, LLC sued Docuphase, LLC (doing business as OnPhase) in the U.S. District Court for the Middle District of Florida, Tampa Division, alleging infringement of U.S. Patent No. 6,918,082 for an 'Electronic Document Proofing System.' Lone Star alleges Docuphase's content management products and services directly infringe claim 16 of the patent, which relates to systems for proofing electronic documents delivered over a network. Lone Star asserts that Docuphase has had knowledge of the patent since at least July 2020 and continued to infringe.

Claims asserted