Inventor · disambiguated record
Jack C. Penn
Also filed as: PENN JACK C
9 granted patents·370 citations·filing 1982–1992
91Inventor score
Files withHALLIBURTON CO9
Top patents by PatentIndex Score
9 records- 0190US4866607ASelf-contained downhole gauge systemHALLIBURTON CO·Filed 1985·Granted Sep 12, 1989·91 cites·10 claims
- 0290US4665398AMethod of sampling and recording information pertaining to a physical condition detected in a well boreHALLIBURTON CO·Filed 1985·Granted May 12, 1987·106 cites·5 claims
- 0383US4709234APower-conserving self-contained downhole gauge systemHALLIBURTON CO·Filed 1985·Granted Nov 24, 1987·55 cites·11 claims
- 0476US4575313ADigital pressure controllerHALLIBURTON CO·Filed 1984·Granted Mar 11, 1986·29 cites·4 claims
- 0568US4905281ASecurity apparatus and method for computers connected to telephone circuitsHALLIBURTON CO·Filed 1988·Granted Feb 27, 1990·36 cites·15 claims
- 0658US4531189AData conversion, communication and analysis systemHALLIBURTON CO·Filed 1982·Granted Jul 23, 1985·13 cites·8 claims
- 0752US5337234ASelf-contained downhole gauge systemHALLIBURTON CO·Filed 1992·Granted Aug 9, 1994·22 cites·2 claims
- 0845US5153832ASelf-containing downhole gauge systemHALLIBURTON CO·Filed 1989·Granted Oct 6, 1992·14 cites·1 claims
- 0935US4551766AOptical readerHALLIBURTON CO·Filed 1982·Granted Nov 5, 1985·4 cites·6 claims
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