Mark G. Knedeisen » Member Directory Go back to directory. Mark G. Knedeisen K&L Gates LLPPatent, Trademark, Trade Secret, Litigation K&L Gates Center 210 Sixth Avenue Pittsburgh PA 15222 postal Home Phone: 412-355-6342 Work Email: mark.knedeisen@klgates.com Website: Bio No Logo Available Connections Business Directory | Leaflet | © OpenStreetMap contributors K&L Gates Center 210 Sixth Avenue Pittsburgh PA 15222Get Directions