Epson Files Complaint with U.S. International Trade Commission Over Ink Cartridge Patent Infringement

Summary

Epson Portland Inc., Epson America, Inc., and Seiko Epson Corporation have filed a complaint with the U.S. International Trade Commission alleging that several companies are infringing on their patents for ink cartridges and components, including Epson's U.S. Patent No. 5,615,957 and U.S. Patent No. 5,622,439.