John W. Zerr » Member Directory Go back to directory. John W. Zerr The Webb Law FirmPatent One Gateway Center 420 Fort Duquesne Boulevard Suite 1200 Pittsburgh PA 15222 work Work Phone: 412-471-8815 Work Email: jzerr@webblaw.com No Logo Available Connections Business Directory | Leaflet | © OpenStreetMap contributors One Gateway Center 420 Fort Duquesne Boulevard Pittsburgh PA 15222Get Directions