Inventor · disambiguated record
Charles D. Bridges
Also filed as: BRIDGES CHARLES D · BROWN ROBERT T
38 granted patents·1,266 citations·filing 1977–2000
98Inventor score
Top patents by PatentIndex Score
38 records- 0186US6244359B1Subsea diverter and rotating drilling headVETCO GRAY INC ABB·Filed 1999·Granted Jun 12, 2001·119 cites·11 claims
- 0285US4771832AWellhead with eccentric casing seal ringVETCO GRAY INC·Filed 1987·Granted Sep 20, 1988·72 cites·5 claims
- 0385US4181175AControl line exiting couplingCOMBUSTION ENG·Filed 1978·Granted Jan 1, 1980·58 cites·7 claims
- 0484US4349205AAnnulus sealing device with anti-extrusion ringsCOMBUSTION ENG·Filed 1981·Granted Sep 14, 1982·65 cites·18 claims
- 0577US4390186AMetal-to-metal ribbed sealCOMBUSTION ENG·Filed 1982·Granted Jun 28, 1983·57 cites·7 claims
- 0676US5671812AHydraulic pressure assisted casing tensioning systemVETCO GRAY INC ABB·Filed 1996·Granted Sep 30, 1997·76 cites·19 claims
- 0775US5944111AInternal riser tensioning systemVETCO GRAY INC ABB·Filed 1997·Granted Aug 31, 1999·71 cites·25 claims
- 0873US5255746AAdjustable mandrel hanger assemblyVETCO GRAY INC ABB·Filed 1992·Granted Oct 26, 1993·55 cites·10 claims
- 0972US6470971B1Tubing head control and pressure monitor deviceVETCO GRAY INC ABB·Filed 2000·Granted Oct 29, 2002·40 cites·21 claims
- 1070US4911245AMetal seal with soft inlaysVETCO GRAY INC·Filed 1989·Granted Mar 27, 1990·40 cites·4 claims
- 1170US4553589AFire-safe surface-controlled subsurface safety valve control line/wellhead connector and blowout preventerGRAY TOOL CO·Filed 1984·Granted Nov 19, 1985·40 cites·2 claims
- 1267US5205356AWell starter headVETCO GRAY INC ABB·Filed 1991·Granted Apr 27, 1993·45 cites·6 claims
- 1367US4540012ATemperature sensitive valve bonnet assemblyGRAY TOOL CO·Filed 1983·Granted Sep 10, 1985·23 cites·8 claims
- 1466US6186237B1Annulus check valve with tubing plug back-upVETCO GRAY INC ABB·Filed 1998·Granted Feb 13, 2001·49 cites·21 claims
- 1565US5287922AEmergency method for running slips over casing collarsVETCO GRAY INC ABB·Filed 1993·Granted Feb 22, 1994·34 cites·15 claims
- 1665US5222555AEmergency casing hanger systemVETCO GRAY INC ABB·Filed 1991·Granted Jun 29, 1993·35 cites·8 claims
- 1765US4607691ANon-orienting, multiple ported, cylindrical pressure transfer deviceCOMBUSTION ENG·Filed 1984·Granted Aug 26, 1986·29 cites·4 claims
- 1863US4770250AHydraulically actuated lock pin for well pipe hangerVETCO GRAY INC·Filed 1987·Granted Sep 13, 1988·27 cites·10 claims
- 1962US4461450ARemote control chokeCOMBUSTION ENG·Filed 1982·Granted Jul 24, 1984·22 cites·7 claims
- 2061US6401827B1Tubing hanger running toolVETCO GRAY INC ABB·Filed 2000·Granted Jun 11, 2002·29 cites·19 claims
- 2161US5732772ADual split tubing hangerVETCO GRAY INC ABB·Filed 1995·Granted Mar 31, 1998·41 cites·9 claims
- 2260US5135266ACasing slips and seal memberVETCO GRAY INC ABB·Filed 1991·Granted Aug 4, 1992·37 cites·9 claims
- 2359US4709933ATemperature transient resistant sealVETCO GRAY INC·Filed 1987·Granted Dec 1, 1987·23 cites·5 claims
- 2456US4465133ACasing hanger colletCOMBUSTION ENG·Filed 1982·Granted Aug 14, 1984·20 cites·8 claims
- 2554US5341885AInternal tubing hanger lockdownVETCO GRAY INC ABB·Filed 1993·Granted Aug 30, 1994·26 cites·19 claims
- 2646US5094297ACasing weight set seal ringVETCO GRAY INC ABB·Filed 1990·Granted Mar 10, 1992·20 cites·8 claims
- 2744US4556076AFire resistant valveGRAY TOOL COMANY·Filed 1983·Granted Dec 3, 1985·12 cites·4 claims
- 2844US4402535AAdjustable backing arrangement for pipe suspending slipsCOMBUSTION ENG·Filed 1981·Granted Sep 6, 1983·13 cites·17 claims
- 2943US6142235ABottom-supported guidance device for alignment of multiple wellbores in a single conductorVETCO GRAY INC ABB·Filed 1998·Granted Nov 7, 2000·18 cites·20 claims
- 3042US4116277AFull flow tubing plug with locked anchor and methodGRAY TOOL CO·Filed 1977·Granted Sep 26, 1978·10 cites·26 claims
- 3138US4511002AMultiple tubing hanger tie back system and methodGRAY TOOL CO·Filed 1983·Granted Apr 16, 1985·9 cites·13 claims
- 3237US5918675AClose proximity wellheadsVETCO GRAY INC ABB·Filed 1997·Granted Jul 6, 1999·12 cites·19 claims
- 3337US4343477ASealing device with thermal expansion pressure accumulatorCOMBUSTION ENG·Filed 1981·Granted Aug 10, 1982·8 cites·6 claims
- 3436US4509594AMudline casing hanger assemblyVETCO OFFSHORE IND INC·Filed 1982·Granted Apr 9, 1985·7 cites·11 claims
- 3535US5810086ASingle riser with two wellheadsVETCO GRAY INC ABB·Filed 1996·Granted Sep 22, 1998·10 cites·28 claims
- 3635US4911480ATorque nut for setting a graphite sealVETCO GRAY INC·Filed 1989·Granted Mar 27, 1990·8 cites·3 claims
- 3732US4477085AFire resistant connections embodying heat transfer meansGRAY TOOL·Filed 1983·Granted Oct 16, 1984·6 cites·9 claims
- 3825US4834177AUnidirectional filter for hydraulic systemsVETCO GRAY INC·Filed 1987·Granted May 30, 1989·0 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →