Inventor · disambiguated record
Joseph A. Burkhardt
Also filed as: BURKHARDT JOSEPH A · REGAN LOUIS M
9 granted patents·520 citations·filing 1973–1988
92Inventor score
Files withEXXON PRODUCTION RESEARCH CO9
Top patents by PatentIndex Score
9 records- 0194US4019334AMethod and apparatus for making subsea pipe connectionsEXXON PRODUCTION RESEARCH CO·Filed 1976·Granted Apr 26, 1977·87 cites·10 claims
- 0292US4429620AHydraulically operated actuatorEXXON PRODUCTION RESEARCH CO·Filed 1981·Granted Feb 7, 1984·156 cites·37 claims
- 0385US3987638ASubsea structure and method for installing the structure and recovering the structure from the sea floorEXXON PRODUCTION RESEARCH CO·Filed 1974·Granted Oct 26, 1976·66 cites·24 claims
- 0484US3989223ARotary motion failsafe gate valve actuatorEXXON PRODUCTION RESEARCH CO·Filed 1973·Granted Nov 2, 1976·42 cites·19 claims
- 0577US4067385AApparatus and method for connecting a tubing string to downhole well equipmentEXXON PRODUCTION RESEARCH CO·Filed 1976·Granted Jan 10, 1978·43 cites·10 claims
- 0675US4858694AHeave compensated stabbing and landing toolEXXON PRODUCTION RESEARCH CO·Filed 1988·Granted Aug 22, 1989·48 cites·9 claims
- 0775US3955793AValve stem static seal systemEXXON PRODUCTION RESEARCH CO·Filed 1974·Granted May 11, 1976·25 cites·10 claims
- 0868US4039025AApparatus for anchoring an offshore structureEXXON PRODUCTION RESEARCH CO·Filed 1976·Granted Aug 2, 1977·31 cites·9 claims
- 0959US4178992AMetal seal tubing plugEXXON PRODUCTION RESEARCH CO·Filed 1978·Granted Dec 18, 1979·22 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →