Inventor · disambiguated record
Gregg S. Perkin
Also filed as: PERKIN GREGG · PERKIN GREGG S · PERKIN GREGG STEVEN
14 granted patents·1 pending application·820 citations·filing 1976–2015
95Inventor score
Files withLOR INC4OIL PATCH GROUP INC4PERKIN GREGG S3ENGINEERING PARTNERS INTERNATIONAL INC2SMITH INTERNATIONAL2
Top patents by PatentIndex Score
15 records- 0194US4565252ABorehole operating tool with fluid circulation through armsLOR INC·Filed 1984·Granted Jan 21, 1986·199 cites·12 claims
- 0291US5360967AOilfield equipment identification apparatusPERKIN GREGG S·Filed 1993·Granted Nov 1, 1994·150 cites·5 claims
- 0391US5142128AOilfield equipment identification apparatusPERKIN GREGG S·Filed 1990·Granted Aug 25, 1992·147 cites·6 claims
- 0483US4792000AMethod and apparatus for well drillingOIL PATCH GROUP INC·Filed 1987·Granted Dec 20, 1988·77 cites·4 claims
- 0580US4771811AHeavy wall drill pipe and method of manufacture of heavy wall drill pipeLOR INC·Filed 1987·Granted Sep 20, 1988·43 cites·7 claims
- 0676US4282941AUnderreamer with large cutter elements and axial fluid passageSMITH INTERNATIONAL·Filed 1979·Granted Aug 11, 1981·38 cites·26 claims
- 0770US4776410AStabilizing tool for well drillingOIL PATCH GROUP INC·Filed 1987·Granted Oct 11, 1988·44 cites·12 claims
- 0867US7887271B2Apparatus for cutting an internal boreENGINEERING PARTNERS INTERNATIONAL INC·Filed 2007·Granted Feb 15, 2011·6 cites·29 claims
- 0966US9377334B2Flowmeter having an interchangeable elongate member attached to the inner surface of a pipe section having a radius of curvatureENGINEERING PARTNERS INTERNATIONAL INC·Filed 2015·Granted Jun 28, 2016·2 cites·23 claims
- 1063US4674171AHeavy wall drill pipe and method of manufacture of heavy wall drill pipeLOR INC·Filed 1984·Granted Jun 23, 1987·20 cites·5 claims
- 1162US4709462AMethod for assembling a well drilling toolOIL PATCH GROUP INC·Filed 1986·Granted Dec 1, 1987·33 cites·5 claims
- 1261USD297847SHeavy wall drill pipeLOR INC·Filed 1984·Granted Sep 27, 1988·8 cites·1 claims
- 1359US4765417AReaming apparatus for well drillingOIL PATCH GROUP INC·Filed 1987·Granted Aug 23, 1988·31 cites·5 claims
- 1457US4023630AWell jar having a time delay sectionSMITH INTERNATIONAL·Filed 1976·Granted May 17, 1977·22 cites·37 claims
- 1533US2007145129A1System and method for identifying equipmentPERKIN GREGG S·Filed 2005·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →