Grant E. Coffield » Member Directory Go back to directory. Grant E. Coffield Eckert Seamans Cherin & Mellott, LLCPatent, Trademark, Copyright, Trade Secret, Litigation Work 600 Grant Street 44th Floor Pittsburgh PA 15219 work Home Phone: 412-566-6965home Work Email: gcoffield@eckertseamans.comINTERNET Categories: Attorney Updated 3 years ago.