Assignee
CNPC USA CORP
US·95 granted patents·46 pending applications·90 citations·filing 2012–2025
Top patents by PatentIndex Score
141 records- 0195US10907416B2Polycrystalline diamond cutter with improved geometry for cooling and cutting evacuation and efficiency and durabilityCNPC USA CORP·Filed 2020·Granted Feb 2, 2021·8 cites·20 claims
- 0294US10125552B2Convex ridge type non-planar cutting tooth and diamond drill bitCNPC USA CORP·Filed 2016·Granted Nov 13, 2018·17 cites·19 claims
- 0393US11248435B1Frac plug system with a setting mandrel and fluid bypass slotsCNPC USA CORP·Filed 2020·Granted Feb 15, 2022·4 cites·20 claims
- 0492US12312536B2Low concentration synthetic polymer fracturing fluid with ascorbic acidCNPC USA CORP·Filed 2023·Granted May 27, 2025·1 cites·20 claims
- 0591US11499378B2Blade cap force modulation system for a drill bitCNPC USA CORP·Filed 2020·Granted Nov 15, 2022·4 cites·16 claims
- 0691US11268015B2Environmentally friendly hydrofracturing friction reducer for harsh conditionsCNPC USA CORP·Filed 2021·Granted Mar 8, 2022·2 cites·8 claims
- 0790US11365589B2Cutting element with non-planar cutting edgesCNPC USA CORP·Filed 2020·Granted Jun 21, 2022·3 cites·12 claims
- 0890US10563464B2Convex ridge type non-planar cutting tooth and diamond drill bitCNPC USA CORP·Filed 2018·Granted Feb 18, 2020·7 cites·20 claims
- 0989US11591858B2Cutting elements with increased curvature cutting edgesCNPC USA CORP·Filed 2020·Granted Feb 28, 2023·3 cites·14 claims
- 1087US9963630B2Method for a fracturing fluid system at high temperaturesCNPC USA CORP·Filed 2015·Granted May 8, 2018·3 cites·12 claims
- 1186US12209481B1Frac plug device for high expansion at the setting positionCNPC USA CORP·Filed 2023·Granted Jan 28, 2025·2 cites·18 claims
- 1286US12139994B2Frac plug device with an anchor mandrel assembly for a locked set configurationCNPC USA CORP·Filed 2023·Granted Nov 12, 2024·2 cites·18 claims
- 1386US11566097B2Degradable polymer composition for use in downhole tools and method of manufacturingCNPC USA CORP·Filed 2020·Granted Jan 31, 2023·1 cites·16 claims
- 1485US11885196B1Retrievable packer with slotted sleeve releaseCNPC USA CORP·Filed 2022·Granted Jan 30, 2024·2 cites·20 claims
- 1585US2025297154A1Composition and method for improving the production of petroleum hydrocarbonsCNPC USA CORP·Filed 2025·Application pending·0 cites
- 1685US2025354909A1Apparatus and method for determining the static proppant-settling-velocity in fracturing fluidsCNPC USA CORP·Filed 2025·Application pending·0 cites
- 1785US2025362215A1Apparatus and method for determining the static proppant-settling-velocity in fracturing fluidsCNPC USA CORP·Filed 2025·Application pending·0 cites
- 1884US12351758B2Method of hydraulic fracturing utilizing a hydraulic fracturing fluid with a single phase liquid proppantCNPC USA CORP·Filed 2024·Granted Jul 8, 2025·0 cites·12 claims
- 1984US12325824B2Composition and method for improving the production of petroleum hydrocarbonsCNPC USA CORP·Filed 2023·Granted Jun 10, 2025·0 cites·19 claims
- 2083US12337428B2Force modulation cartridge system for a drill bitCNPC USA CORP·Filed 2023·Granted Jun 24, 2025·1 cites·20 claims
- 2183US11499091B2Composition and method for improving the production of petroleum hydrocarbonsCNPC USA CORP·Filed 2020·Granted Nov 15, 2022·1 cites·14 claims
- 2283US10550667B2Isolation valve assemblyCNPC USA CORP·Filed 2017·Granted Feb 4, 2020·6 cites·20 claims
- 2382US10815419B2Method for a fracturing fluid system at high temperaturesCNPC USA CORP·Filed 2019·Granted Oct 27, 2020·1 cites·15 claims
- 2482US10544645B2Dissolvable composite slips and methods of manufacturing sameCNPC USA CORP·Filed 2017·Granted Jan 28, 2020·1 cites·11 claims
- 2581US11999906B2Method of hydraulic fracturing utilizing a hydraulic fracturing fluid with a single phase liquid proppantCNPC USA CORP·Filed 2023·Granted Jun 4, 2024·0 cites·6 claims
- 2681US10450501B2Method for a fracturing fluid system at high temperaturesCNPC USA CORP·Filed 2018·Granted Oct 22, 2019·1 cites·15 claims
- 2781US10066151B2Method for a fracturing fluid system at high temperaturesCNPC USA CORP·Filed 2018·Granted Sep 4, 2018·1 cites·11 claims
- 2880US12391868B2Method for making nano- and micro-particles for use as a proppant and fluid-loss-control additiveCNPC USA CORP·Filed 2024·Granted Aug 19, 2025·0 cites·16 claims
- 2980US12024575B2Co-cured fluoroelastomers with improved chemical resistanceCNPC USA CORP·Filed 2022·Granted Jul 2, 2024·0 cites·14 claims
- 3080US11999905B2Degradable friction reducer for hydraulic fracturing treatmentsCNPC USA CORP·Filed 2022·Granted Jun 4, 2024·0 cites·7 claims
- 3180US2024425736A1Pdc cutter with unique microstructureCNPC USA CORP·Filed 2024·Application pending·0 cites
- 3279US12448863B2Molded articles of modified polyglycolic acid for degradable downhole tools applicationCNPC USA CORP·Filed 2023·Granted Oct 21, 2025·0 cites·18 claims
- 3379US11851612B2Composition and method for improving the production of petroleum hydrocarbonsCNPC USA CORP·Filed 2022·Granted Dec 26, 2023·0 cites·4 claims
- 3479US2025270440A1Low concentration synthetic polymer fracturing fluid with ascorbic acidCNPC USA CORP·Filed 2025·Application pending·0 cites
- 3578US12104111B2Unique PDC microstructure and the method of making itCNPC USA CORP·Filed 2022·Granted Oct 1, 2024·0 cites·14 claims
- 3678US11499377B2Force modulation system for a drill bitCNPC USA CORP·Filed 2020·Granted Nov 15, 2022·1 cites·14 claims
- 3778US10829680B2High density and high temperature emulsifier for use in an oil based drilling fluid systemCNPC USA CORP·Filed 2019·Granted Nov 10, 2020·1 cites·21 claims
- 3878US2024409805A1Degradable friction reducer for hydraulic fracturing treatmentsCNPC USA CORP·Filed 2024·Application pending·0 cites
- 3977US12098327B2Degradable friction reducer for hydraulic fracturing treatmentsCNPC USA CORP·Filed 2023·Granted Sep 24, 2024·0 cites·8 claims
- 4077US12098326B2Degradable friction reducer for hydraulic fracturing treatmentsCNPC USA CORP·Filed 2023·Granted Sep 24, 2024·0 cites·5 claims
- 4177US2025289996A1Treatment of subterranean formations with crosslinked fluidsCNPC USA CORP·Filed 2025·Application pending·0 cites
- 4277US2025129199A1Degradable polymer composition and methods of manufacturing and using in downhole toolsCNPC USA CORP·Filed 2024·Application pending·0 cites
- 4376US9394777B2Pressure controlled multi-shift frac sleeve systemCNPC USA CORP·Filed 2013·Granted Jul 19, 2016·5 cites·20 claims
- 4475US12467123B2Boronized corrosion resistant alloy component for high pressure and high temperature oilfield applicationsCNPC USA CORP·Filed 2023·Granted Nov 11, 2025·0 cites·20 claims
- 4575US11827780B2Modified polyglycolic acid and molded articles for degradable downhole tools applicationCNPC USA CORP·Filed 2021·Granted Nov 28, 2023·0 cites·18 claims
- 4674US12392704B2Apparatus and method for determining the static proppant-settling-velocity in fracturing fluidsCNPC USA CORP·Filed 2022·Granted Aug 19, 2025·0 cites·9 claims
- 4774US10830020B2Tool assembly with a fluidic agitator and a coatingCNPC USA CORP·Filed 2019·Granted Nov 10, 2020·2 cites·20 claims
- 4873US12241022B2Method for making nano- and micro-particles for use as a proppant and fluid-loss-control additiveCNPC USA CORP·Filed 2022·Granted Mar 4, 2025·0 cites·10 claims
- 4972US2024141759A1Method for powering with a hybrid battery pack systemCNPC USA CORP·Filed 2024·Application pending·0 cites
- 5071US11578261B2Method of hydraulic fracturing utilizing a hydraulic fracturing fluid with a single phase liquid proppantCNPC USA CORP·Filed 2020·Granted Feb 14, 2023·0 cites·20 claims
Showing the top 50 of 141 patent records by PatentIndex Score.
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