Inventor · disambiguated record
David J. Speller
Also filed as: SPELLER DAVID · SPELLER DAVID J
12 granted patents·673 citations·filing 1983–2023
92Inventor score
Technology areasE21B
Top patents by PatentIndex Score
12 records- 0195US5794703AWellbore tractor and method of moving an item through a wellboreCTES L C·Filed 1996·Granted Aug 18, 1998·258 cites·27 claims
- 0293US6581681B1Bridge plug for use in a wellboreWEATHERFORD LAMB·Filed 2000·Granted Jun 24, 2003·185 cites·14 claims
- 0389US4498536AMethod of washing, injecting swabbing or flow testing subterranean wellsBAKER OIL TOOLS INC·Filed 1983·Granted Feb 12, 1985·86 cites·3 claims
- 0488US4552218AUnloading injection control valveBAKER OIL TOOLS INC·Filed 1983·Granted Nov 12, 1985·80 cites·9 claims
- 0576US8590608B2Method and apparatus for multilateral construction and intervention of a wellLINN BRYAN CHARLES·Filed 2011·Granted Nov 26, 2013·9 cites·13 claims
- 0675US12460522B2Collet baffle, a tool incorporating same, and a system and method incorporating same, for perforating and fracking a wellbore not having initial ports or sliding sleevesCAMPBELL SEAN P·Filed 2022·Granted Nov 4, 2025·1 cites·16 claims
- 0774US11946354B2All-in-one system and related method for fracking and completing a well which automatically installs sand screens for sand control immediately after frackingSC ASSET CORP·Filed 2023·Granted Apr 2, 2024·0 cites·5 claims
- 0872US11578582B2All-in-one system and related method for fracking and completing a well which automatically installs sand screens for sand control immediately after frackingSC ASSET CORP·Filed 2022·Granted Feb 14, 2023·0 cites·4 claims
- 0971US11585201B2All-in-one system and related method for fracking and completing a well which automatically installs sand screens for sand control immediately after frackingSC ASSET CORP·Filed 2022·Granted Feb 21, 2023·0 cites·12 claims
- 1070US4485876AValving apparatus for downhole toolsBAKER OIL TOOLS INC·Filed 1983·Granted Dec 4, 1984·36 cites·19 claims
- 1168US11459867B1All-in-one system and related method for fracking and completing a well which automatically installs sand screens for sand control immediately after frackingSC ASSET CORP·Filed 2021·Granted Oct 4, 2022·0 cites·9 claims
- 1247US4576196AUnloading injection control valveBAKER OIL TOOLS INC·Filed 1985·Granted Mar 18, 1986·18 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →