Inventor · disambiguated record
John R. Portman
Also filed as: PORTMAN JOHN · PORTMAN JOHN R
7 granted patents·349 citations·filing 1991–1997
88Inventor score
Top patents by PatentIndex Score
7 records- 0195US5096271ADrive assembly, power off retractSONY TRANS COM INC·Filed 1991·Granted Mar 17, 1992·200 cites·20 claims
- 0285US5548356AAutomatic video projection screenSONY CORP·Filed 1995·Granted Aug 20, 1996·26 cites·19 claims
- 0376US5811791AMethod and apparatus for providing a vehicle entertainment control system having an override control switchSONY CORP·Filed 1997·Granted Sep 22, 1998·59 cites·20 claims
- 0450US5704798AApparatus for automatically terminating a signalSONY CORP·Filed 1996·Granted Jan 6, 1998·16 cites·13 claims
- 0541US5910814AInterface for liquid crystal display retract deviceSONY CORP·Filed 1996·Granted Jun 8, 1999·21 cites·5 claims
- 0641US5738392ALatch for securing an aircraft video deviceSONY CORP·Filed 1995·Granted Apr 14, 1998·19 cites·25 claims
- 0730US5636055AFlip screen assemblySONY CORP·Filed 1996·Granted Jun 3, 1997·8 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →