DH

David E. Hughes

AI Amcast Industrial: 3 patents #3 of 16Top 20%
BP British Telecommunications Plc: 2 patents #81 of 616Top 15%
SV Superior Valve: 2 patents #2 of 12Top 20%
PI Ppg Industries: 1 patents #662 of 1,216Top 55%
US USDA: 1 patents #1,162 of 2,828Top 45%
Overall (All Time): #465,960 of 4,157,543Top 15%
11
Patents All Time

Issued Patents All Time

Showing 1–11 of 11 patents

Patent #TitleCo-InventorsDate
8483126 Multi-network mobile communications systems and/or methods John C. Lee, Geoffrey Haigh, Andrew R. J. Cook 2013-07-09
7792265 Call completion service in case of called party unavailability John C. Lee 2010-09-07
5562117 Crashworthy solenoid actuated valve for CNG powered vehicle Robin N. Borland 1996-10-08
5474104 Refueling check valve for compressed natural gas powered vehicles Robin N. Borland, William S. Kalaskie, John Piscatelli, Paul Rafalowski, Timothy R. Stiffy +1 more 1995-12-12
5452738 Crashworthy solenoid actuated valve for CNG powered vehicle Robin N. Borland 1995-09-26
5125622 Cylinder valve connection William S. Kalaskie 1992-06-30
4776562 Dual piston pneumatically operated valve William S. Kalaskie 1988-10-11
4706929 Pneumatically operated valve with manual override and lockout William S. Kalaskie 1987-11-17
4328020 Melting glass with reduced NO.sub.x emissions 1982-05-04
4211386 Slow opening cylinder valve William C. Yocum 1980-07-08
4201210 Veterinary ocular ring device for sustained drug release George W. Pugh, Jr. 1980-05-06