Inventor · disambiguated record
John Mccaskill
Also filed as: MCCASKILL JOHN · MCCASKILL JOHN W · MCCASKILL JOHN WALTON
12 granted patents·2 pending applications·360 citations·filing 1974–2022
92Inventor score
Files withPOWER WELL SERVICES L P3EXPRO AMERICAS L P2POWER CHOKES L P2EXPRO AMERICAS LLC1EXXON PRODUCTION RESEARCH CO1
Top patents by PatentIndex Score
14 records- 0194US3933338ABalanced stem fail-safe valve systemEXXON PRODUCTION RESEARCH CO·Filed 1974·Granted Jan 20, 1976·67 cites·12 claims
- 0292US6980485B2Automatic camera tracking using beamformingPOLYCOM INC·Filed 2001·Granted Dec 27, 2005·89 cites·16 claims
- 0390US4029294AHigh pressure valveMCEVOY OILFIELD EQUIPMENT CO·Filed 1974·Granted Jun 14, 1977·60 cites·15 claims
- 0487US4185856APipe joint with remotely operable latchMCEVOY OILFIELD EQUIPMENT·Filed 1978·Granted Jan 29, 1980·82 cites·11 claims
- 0580US6883614B2Modular actuator system for valves and chokesPOWER CHOKES·Filed 2004·Granted Apr 26, 2005·31 cites·29 claims
- 0670US7275606B1Solids strainer system for a hydraulic chokeEXPRO AMERICAS L P·Filed 2007·Granted Oct 2, 2007·11 cites·20 claims
- 0767US7360611B2Flow system for a hydraulic choke solids strainerEXPRO AMERICAS L P·Filed 2007·Granted Apr 22, 2008·9 cites·20 claims
- 0856US7124770B2Shear mechanism for backpressure relief in a choke valvePOWER WELL SERVICES L P·Filed 2004·Granted Oct 24, 2006·7 cites·17 claims
- 0953US12133602B1Folding food tray with neck strapMCCASKILL JOHN·Filed 2022·Granted Nov 5, 2024·0 cites·10 claims
- 1051US7231932B2Apparatus and methods for servicing a hydraulic chokePOWER WELL SERVICES L P·Filed 2006·Granted Jun 19, 2007·3 cites·21 claims
- 1140US2004217050A1Solids separation system for well flowbackPOWER CHOKES L P·Filed 2004·Application pending·0 cites
- 1236US11149506B2System for controlling wellbore pressure during pump shutdownsEXPRO AMERICAS LLC·Filed 2015·Granted Oct 19, 2021·0 cites·15 claims
- 1336US7159604B2Manipulator system for servicing a hydraulic chokePOWER WELL SERVICES L P·Filed 2004·Granted Jan 9, 2007·1 cites·21 claims
- 1434US2005092523A1Well pressure control systemPOWER CHOKES L P·Filed 2004·Application pending·0 cites
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →