Inventor · disambiguated record
Donald Roy Greenlee
Also filed as: GREENLEE DONALD R · GREENLEE DONALD ROY
30 granted patents·3 pending applications·558 citations·filing 1977–2025
97Inventor score
Files withDRESSER IND13NINE DOWNHOLE TECH LLC12GREENLEE DONALD R3GREENLEE DONALD ROY3ARROW OIL TOOLS INC1
Top patents by PatentIndex Score
33 records- 0194US11365600B2Compact downhole toolNINE DOWNHOLE TECH LLC·Filed 2019·Granted Jun 21, 2022·14 cites·46 claims
- 0294US8336635B2Downhole apparatus with packer cup and slipGREENLEE DONALD ROY·Filed 2011·Granted Dec 25, 2012·37 cites·18 claims
- 0393US11697975B2Compact downhole toolNINE DOWNHOLE TECH LLC·Filed 2022·Granted Jul 11, 2023·4 cites·39 claims
- 0493US8113276B2Downhole apparatus with packer cup and slipGREENLEE DONALD ROY·Filed 2008·Granted Feb 14, 2012·66 cites·11 claims
- 0592US12215565B2Compact downhole toolNINE DOWNHOLE TECH LLC·Filed 2023·Granted Feb 4, 2025·2 cites·20 claims
- 0692US8893780B2Downhole apparatus with packer cup and slipGREENLEE DONALD ROY·Filed 2011·Granted Nov 25, 2014·26 cites·12 claims
- 0789US10400535B1Retrievable downhole toolNINE DOWNHOLE TECH LLC·Filed 2018·Granted Sep 3, 2019·7 cites·11 claims
- 0889US4791992AHydraulically operated and released isolation packerDRESSER IND·Filed 1987·Granted Dec 20, 1988·103 cites·38 claims
- 0981US11371312B2Cup plug having a large flow-through inside diameterNINE DOWNHOLE TECH LLC·Filed 2019·Granted Jun 28, 2022·2 cites·18 claims
- 1076US9915114B2Retrievable downhole toolGREENLEE DONALD R·Filed 2015·Granted Mar 13, 2018·3 cites·8 claims
- 1175US4750559ARetrievable anchor assemblyDRESSER IND·Filed 1985·Granted Jun 14, 1988·52 cites·4 claims
- 1274US4391326AStinger assembly for oil well toolDRESSER IND·Filed 1981·Granted Jul 5, 1983·41 cites·12 claims
- 1372US5103901AHydraulically operated well packerDRESSER IND·Filed 1990·Granted Apr 14, 1992·55 cites·7 claims
- 1470US11946333B2Cup plug having a large flow-through inside diameterNINE DOWNHOLE TECH LLC·Filed 2022·Granted Apr 2, 2024·0 cites·14 claims
- 1566US11015415B2Filament-reinforced composite material with load-aligned filament windingsNINE DOWNHOLE TECH LLC·Filed 2018·Granted May 25, 2021·1 cites·16 claims
- 1657US4593765ATubing resettable well toolDRESSER IND·Filed 1984·Granted Jun 10, 1986·21 cites·21 claims
- 1755US10487615B2Cup plug having a large flow-through inside diameterNINE DOWNHOLE TECH LLC·Filed 2017·Granted Nov 26, 2019·0 cites·17 claims
- 1854US4702313ASlip and slip assembly for well toolsDRESSER IND·Filed 1985·Granted Oct 27, 1987·24 cites·8 claims
- 1949US11459839B2Sleeve for downhole toolsNINE DOWNHOLE TECH LLC·Filed 2020·Granted Oct 4, 2022·0 cites·16 claims
- 2049US9551197B2Hydrostatic setting toolGREENLEE DONALD R·Filed 2015·Granted Jan 24, 2017·0 cites·19 claims
- 2149US2025146382A1Compact downhole toolNINE DOWNHOLE TECH LLC·Filed 2025·Application pending·0 cites
- 2248US4109714AShutdown system for high pressure wellDRESSER IND·Filed 1977·Granted Aug 29, 1978·18 cites·6 claims
- 2346US4583590ASlip releasing apparatusDRESSER IND·Filed 1985·Granted Apr 22, 1986·18 cites·7 claims
- 2445US9121240B2Hydrostatic setting toolGREENLEE DONALD R·Filed 2012·Granted Sep 1, 2015·0 cites·19 claims
- 2543US2020392807A1Slips with internal buttonsNINE DOWNHOLE TECH LLC·Filed 2019·Application pending·0 cites
- 2641US5148866AWell tool anchoring mechanism with improved slip releaseDRESSER IND·Filed 1991·Granted Sep 22, 1992·15 cites·3 claims
- 2740US5129453AQuick set well packerDRESSER IND·Filed 1990·Granted Jul 14, 1992·14 cites·18 claims
- 2840US4856583AApparatus for treating well boresDRESSER IND·Filed 1987·Granted Aug 15, 1989·17 cites·5 claims
- 2938US2020102804A1Drop Balls for Use with Settable Downhole ToolsNINE DOWNHOLE TECH LLC·Filed 2019·Application pending·0 cites
- 3037US9004160B2Downhole tool apparatus with slip plate and wedgeGREENLEE DONALD J·Filed 2013·Granted Apr 14, 2015·0 cites·16 claims
- 3133US4189001AFriction spring and slip retainer for a mechanical setting tubing anchorDRESSER IND·Filed 1978·Granted Feb 19, 1980·4 cites·7 claims
- 3232US4530398ARetrievable well bore packerARROW OIL TOOLS INC·Filed 1982·Granted Jul 23, 1985·10 cites·7 claims
- 3325US4265459ASwab cup reinforcing member supportDRESSER IND·Filed 1979·Granted May 5, 1981·4 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →