Inventor · disambiguated record
F. Harold Hollister
Also filed as: HOLLISTER F HAROLD
10 granted patents·412 citations·filing 1983–2009
92Inventor score
Top patents by PatentIndex Score
10 records- 0198US6257268B1Pressure biased shuttle valveGILMORE VALVE CO·Filed 2000·Granted Jul 10, 2001·155 cites·24 claims
- 0290US6651696B2Relief valveGILMORE VALVE CO LTD·Filed 2001·Granted Nov 25, 2003·50 cites·6 claims
- 0388US6655405B2BOP operating system with quick dump valveGILMORE VALVE CO·Filed 2001·Granted Dec 2, 2003·34 cites·6 claims
- 0485US4570942ADual diameter valve stem packingJOY MFG CO·Filed 1985·Granted Feb 18, 1986·47 cites·5 claims
- 0584US6779543B2BOP operating system with quick dump valveGILMORE VALVE CO LTD·Filed 2003·Granted Aug 24, 2004·26 cites·6 claims
- 0678US6318400B1Low interflow hydraulic shuttle valveGILMORE VALVE CO·Filed 1999·Granted Nov 20, 2001·40 cites·8 claims
- 0770US7976075B2Probe seal having spring-energized sealing elements for female hydraulic coupling memberNAT COUPLING CO INC·Filed 2009·Granted Jul 12, 2011·5 cites·20 claims
- 0866US4515174AGate valve with internal pressure relief meansJOY MFG CO·Filed 1983·Granted May 7, 1985·23 cites·6 claims
- 0958US4650225AHydraulic holddown screw with mechanical retention meansJOY MFG CO·Filed 1986·Granted Mar 17, 1987·30 cites·3 claims
- 1029US4575106AHigh pressure sealing connection with metal sealJOY MFG CO·Filed 1984·Granted Mar 11, 1986·2 cites·5 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →