Inventor · disambiguated record
Henry P. Arendt
Also filed as: ARENDT HENRY P · HOLLAND WARREN E
16 granted patents·614 citations·filing 1975–1990
95Inventor score
Top patents by PatentIndex Score
16 records- 0192US4921438AWet connectorOTIS ENG CO·Filed 1989·Granted May 1, 1990·113 cites·20 claims
- 0285US4938060ADownhole inspection systemOTIS ENG CO·Filed 1988·Granted Jul 3, 1990·86 cites·41 claims
- 0380US5058683AWet connectorOTIS ENG CO·Filed 1990·Granted Oct 22, 1991·74 cites·3 claims
- 0478US4049052ASubsurface annulus safety valveOTIS ENG CO·Filed 1976·Granted Sep 20, 1977·42 cites·17 claims
- 0576US4204690ASealing retaining ring assemblyEXXON PRODUCTION RESEARCH CO·Filed 1979·Granted May 27, 1980·30 cites·6 claims
- 0672US4997384AWet connectorOTIS ENG CO·Filed 1990·Granted Mar 5, 1991·55 cites·4 claims
- 0772US4201363ATubing retrievable surface controlled subsurface safety valveOTIS ENG CO·Filed 1978·Granted May 6, 1980·32 cites·12 claims
- 0868US4355686AWell system and methodOTIS ENG CO·Filed 1980·Granted Oct 26, 1982·37 cites·8 claims
- 0967US4078810APiston type seal unit for wellsOTIS ENG CO·Filed 1976·Granted Mar 14, 1978·27 cites·21 claims
- 1066US4344602ALock open mechanism for subsurface safety valveOTIS ENG CO·Filed 1980·Granted Aug 17, 1982·32 cites·11 claims
- 1162US4164977AWell latchOTIS ENG CO·Filed 1977·Granted Aug 21, 1979·27 cites·19 claims
- 1258US4127167ALubricator for moving well equipment through flow conductorOTIS ENG CO·Filed 1977·Granted Nov 28, 1978·21 cites·10 claims
- 1351US3935903AWell tubing protective fluid injection systemOTIS ENG CO·Filed 1975·Granted Feb 3, 1976·16 cites·9 claims
- 1442US4334581ABalanced area safety valveOTIS ENG CO·Filed 1980·Granted Jun 15, 1982·12 cites·10 claims
- 1536US4418756AMethod and apparatus for performing operations in well tubingOTIS ENG CO·Filed 1981·Granted Dec 6, 1983·7 cites·13 claims
- 1631US4119147APumpdown safety valveOTIS ENG CO·Filed 1976·Granted Oct 10, 1978·3 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →