Inventor · disambiguated record
Mark E. Hopmann
Also filed as: HOPMANN MARK · HOPMANN MARK E
22 granted patents·1,689 citations·filing 1982–2001
97Inventor score
Top patents by PatentIndex Score
22 records- 0199US6334486B1Downhole flow control devicesBAKER HUGHES INC·Filed 2000·Granted Jan 1, 2002·113 cites·29 claims
- 0298US5906238ADownhole flow control devicesBAKER HUGHES INC·Filed 1997·Granted May 25, 1999·134 cites·10 claims
- 0397US6484800B2Downhole flow control devicesBAKER HUGHES INC·Filed 2001·Granted Nov 26, 2002·68 cites·17 claims
- 0493US5832996AElectro hydraulic downhole control deviceBAKER HUGHES INC·Filed 1997·Granted Nov 10, 1998·82 cites·18 claims
- 0593US5188183AMethod and apparatus for controlling the flow of well bore fluidsBAKER HUGHES INC·Filed 1991·Granted Feb 23, 1993·193 cites·16 claims
- 0692US6698517B2Apparatus, methods, and applications for expanding tubulars in a wellboreWEATHERFORD LAMB·Filed 2001·Granted Mar 2, 2004·118 cites·10 claims
- 0792US4928772AMethod and apparatus for shifting a ported member using continuous tubingBAKER HUGHES INC·Filed 1989·Granted May 29, 1990·111 cites·10 claims
- 0891US5309993AChevron seal for a well toolBAKER HUGHES INC·Filed 1992·Granted May 10, 1994·113 cites·31 claims
- 0990US5316084AWell tool with sealing meansBAKER HUGHES INC·Filed 1991·Granted May 31, 1994·109 cites·48 claims
- 1089US6041857AMotor drive actuator for downhole flow control devicesBAKER HUGHES INC·Filed 1997·Granted Mar 28, 2000·140 cites·35 claims
- 1188US6450255B2Downhole flow control devicesBAKER HUGHES INC·Filed 2001·Granted Sep 17, 2002·21 cites·8 claims
- 1288US5156220AWell tool with sealing meansBAKER HUGHES INC·Filed 1990·Granted Oct 20, 1992·100 cites·8 claims
- 1383US4823872ADownhole locking apparatusBAKER HUGHES INC·Filed 1988·Granted Apr 25, 1989·68 cites·10 claims
- 1482US6612547B2Downhole flow control devicesBAKER HUGHES INC·Filed 2001·Granted Sep 2, 2003·39 cites·8 claims
- 1578US4909325AHorizontal well turbulizer and methodBAKER HUGHES INC·Filed 1989·Granted Mar 20, 1990·55 cites·8 claims
- 1678US4510995ADownhole locking apparatusBAKER OIL TOOLS INC·Filed 1983·Granted Apr 16, 1985·50 cites·17 claims
- 1777US4917191AMethod and apparatus for selectively shifting a tool memberBAKER HUGHES INC·Filed 1989·Granted Apr 17, 1990·53 cites·17 claims
- 1868US4437522ASelective lock for anchoring well toolsBAKER OIL TOOLS INC·Filed 1982·Granted Mar 20, 1984·35 cites·22 claims
- 1963US6260616B1Downhole flow control devicesBAKER HUGHES INC·Filed 1998·Granted Jul 17, 2001·27 cites·17 claims
- 2058US4949791AMethod and apparatus for securing and releasing continuous tubing in a subterranean wellBAKER HUGHES INC·Filed 1989·Granted Aug 21, 1990·27 cites·23 claims
- 2158US4583591ADownhole locking apparatusBAKER OIL TOOLS INC·Filed 1984·Granted Apr 22, 1986·23 cites·6 claims
- 2238US4923012ASafety valve for horizontal completions of subterranean wellsBAKER HUGHES INC·Filed 1989·Granted May 8, 1990·10 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →