Inventor · disambiguated record
Gary D. Zunkel
Also filed as: ZUNKEL GARY D
20 granted patents·1,012 citations·filing 1984–1998
97Inventor score
Top patents by PatentIndex Score
20 records- 0197US6012521ADownhole pressure wave generator and method for use thereofETREMA PRODUCTS INC·Filed 1998·Granted Jan 11, 2000·198 cites·28 claims
- 0292US4583593AHydraulically activated liner setting deviceHALLIBURTON CO·Filed 1985·Granted Apr 22, 1986·110 cites·20 claims
- 0390US4903765ADelayed opening fluid samplerHALLIBURTON CO·Filed 1989·Granted Feb 27, 1990·92 cites·20 claims
- 0484US4691779AHydrostatic referenced safety-circulating valveHALLIBURTON CO·Filed 1986·Granted Sep 8, 1987·72 cites·65 claims
- 0580US4883123AAbove packer perforate, test and sample tool and method of useHALLIBURTON CO·Filed 1988·Granted Nov 28, 1989·58 cites·19 claims
- 0679US4664188ARetrievable well packerHALLIBURTON CO·Filed 1986·Granted May 12, 1987·61 cites·15 claims
- 0776US4606408AMethod and apparatus for gravel-packing a wellHALLIBURTON CO·Filed 1985·Granted Aug 19, 1986·53 cites·20 claims
- 0871US4567944ARetrievable straddle packerHALLIBURTON CO·Filed 1984·Granted Feb 4, 1986·48 cites·19 claims
- 0970US4789271ARemote fluid transfer system and method for sub-sea baseplates and templatesHALLIBURTON CO·Filed 1987·Granted Dec 6, 1988·24 cites·20 claims
- 1067US4619325AWell surging method and systemHALLIBURTON CO·Filed 1985·Granted Oct 28, 1986·36 cites·15 claims
- 1163US4736798ARapid cycle annulus pressure responsive tester valveHALLIBURTON CO·Filed 1986·Granted Apr 12, 1988·33 cites·5 claims
- 1261US4793411ARetrievable gravel packer and retrieving toolHALLIBURTON CO·Filed 1988·Granted Dec 27, 1988·29 cites·20 claims
- 1361US4627491AWell packerHALLIBURTON CO·Filed 1985·Granted Dec 9, 1986·31 cites·8 claims
- 1460US4726419ASingle zone gravel packing systemHALLIBURTON CO·Filed 1987·Granted Feb 23, 1988·31 cites·6 claims
- 1557US4635716AGravel packerHALLIBURTON CO·Filed 1985·Granted Jan 13, 1987·26 cites·19 claims
- 1657US4633943AGravel packerHALLIBURTON CO·Filed 1985·Granted Jan 6, 1987·26 cites·20 claims
- 1753US4877086APressure limiter for a downhole pump and testing apparatusHALLIBURTON CO·Filed 1988·Granted Oct 31, 1989·22 cites·18 claims
- 1852US4638859AGravel packerHALLIBURTON CO·Filed 1985·Granted Jan 27, 1987·23 cites·20 claims
- 1951US4628993AFoam gravel packerHALLIBURTON CO·Filed 1985·Granted Dec 16, 1986·21 cites·19 claims
- 2046US4633944AGravel packerHALLIBURTON CO·Filed 1985·Granted Jan 6, 1987·18 cites·18 claims
Join the waitlist — get patent alerts
Get an alert when Gary D. Zunkel files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →