Inventor · disambiguated record
Roger P. Allwin
Also filed as: ALLWIN ROGER P
10 granted patents·625 citations·filing 1982–1990
93Inventor score
Technology areasE21B
Files withLINDSEY COMPLETION SYSTEMS INC5MWL TOOL COMPANY2LINDSEY COMPLETION SYSTEMS1MWL TOOL & SUPPLY COMPANY1MWL TOOL AND SUPPLY COMPANY1
Top patents by PatentIndex Score
10 records- 0193US4601343APBR with latching system for tubingMWL TOOL AND SUPPLY COMPANY·Filed 1985·Granted Jul 22, 1986·140 cites·8 claims
- 0284US4862966ALiner hanger with collapsible ball valve seatLINDSEY COMPLETION SYSTEMS INC·Filed 1988·Granted Sep 5, 1989·75 cites·7 claims
- 0384US4828037ALiner hanger with retrievable ball valve seatLINDSEY COMPLETION SYSTEMS INC·Filed 1988·Granted May 9, 1989·75 cites·5 claims
- 0480US5181570ALiner hanger assemblyMWL TOOL COMPANY·Filed 1984·Granted Jan 26, 1993·71 cites·24 claims
- 0577US5048606ASetting tool for a liner hanger assemblyLINDSEY COMPLETION SYSTEMS INC·Filed 1990·Granted Sep 17, 1991·68 cites·23 claims
- 0672US4681159ASetting tool for a well toolMWL TOOL COMPANY·Filed 1985·Granted Jul 21, 1987·52 cites·9 claims
- 0770US4712614ALiner hanger assembly with combination setting toolLINDSEY COMPLETION SYSTEMS·Filed 1986·Granted Dec 15, 1987·48 cites·28 claims
- 0868US4848462ARotatable liner hangerLINDSEY COMPLETION SYSTEMS INC·Filed 1988·Granted Jul 18, 1989·40 cites·4 claims
- 0960US4482014ABarrier tool for polished bore receptacleMWL TOOL & SUPPLY COMPANY·Filed 1982·Granted Nov 13, 1984·28 cites·5 claims
- 1054US5074362AFinger nut setting tool and liner hanger assemblyLINDSEY COMPLETION SYSTEMS INC·Filed 1990·Granted Dec 24, 1991·28 cites·23 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →