Inventor · disambiguated record
Qingyou Liu
Also filed as: LIU QINGYOU
32 granted patents·2 pending applications·17 citations·filing 2012–2024
93Inventor score
Files withUNIV SOUTHWEST PETROLEUM19UNIV CHENGDU TECHNOLOGY12CENTRAL IRON AND STEEL RES INSTITUTE1LIU QINGYOU1SOUTHERN MARINE SCIENCE AND ENG GUANGDONG LABORATORY ZHANJIANG1
Top patents by PatentIndex Score
34 records- 0186US11668148B1Downhole explosion robot based on planetary roller screw telescoping and traction method thereofUNIV CHENGDU TECHNOLOGY·Filed 2022·Granted Jun 6, 2023·3 cites·8 claims
- 0285US11542789B2Cavity creation tool by crushing with multi-stage controllable water jet for natural gas hydrate developmentUNIV SOUTHWEST PETROLEUM·Filed 2021·Granted Jan 3, 2023·2 cites·4 claims
- 0383US12297705B1Support mechanism of self-adaptive traction robot for complex wellbore and control method thereofUNIV CHENGDU TECHNOLOGY·Filed 2024·Granted May 13, 2025·2 cites·4 claims
- 0481US10801942B2Multi-functional multi-field coupling seepage experiment device and testing method thereofUNIV SOUTHWEST PETROLEUM·Filed 2017·Granted Oct 13, 2020·3 cites·5 claims
- 0573US11773653B2Double-layer coiled tubing double-gradient drilling systemUNIV SOUTHWEST PETROLEUM·Filed 2019·Granted Oct 3, 2023·2 cites·10 claims
- 0666US10233694B2Dynamic inwardly eccentrically-placed directional drill bit type rotation guidance apparatusUNIV SOUTHWEST PETROLEUM·Filed 2015·Granted Mar 19, 2019·2 cites·16 claims
- 0764US10690281B2Pipeline robot capable of steering activelyUNIV CHENGDU TECHNOLOGY·Filed 2016·Granted Jun 23, 2020·1 cites·8 claims
- 0863US12390884B2Textured surface of oil and gas equipment and machining method thereofUNIV SOUTHWEST PETROLEUM·Filed 2022·Granted Aug 19, 2025·0 cites·17 claims
- 0962US9316340B2Actively driven spiral pipeline robotUNIV SOUTHWEST PETROLEUM·Filed 2012·Granted Apr 19, 2016·1 cites·13 claims
- 1056US12186856B1Grinding robot for inside wall of small diameter pipesUNIV CHENGDU TECHNOLOGY·Filed 2024·Granted Jan 7, 2025·0 cites·5 claims
- 1155US12264544B2Downhole traction systemUNIV CHENGDU TECHNOLOGY·Filed 2023·Granted Apr 1, 2025·0 cites·19 claims
- 1249US12312934B2Wireless remote control method and system for controllable rotary sliding guiding drillingUNIV CHENGDU TECHNOLOGY·Filed 2023·Granted May 27, 2025·0 cites·4 claims
- 1349US9476292B2Deepwater drilling condition based marine riser mechanical behavior test simulation system and test methodUNIV SOUTHWEST PETROLEUM·Filed 2014·Granted Oct 25, 2016·1 cites·3 claims
- 1448US11209414B2Method for determining quality level of iron and steel productCENTRAL IRON AND STEEL RES INSTITUTE·Filed 2018·Granted Dec 28, 2021·0 cites·13 claims
- 1547US12060973B2System and method for pumping lubricant in gas pipelineUNIV SOUTHWEST PETROLEUM·Filed 2021·Granted Aug 13, 2024·0 cites·5 claims
- 1647US11047183B2Coiled tubing drilling robot, robot system and process parameter control method thereofUNIV CHENGDU TECHNOLOGY·Filed 2019·Granted Jun 29, 2021·0 cites·19 claims
- 1746US12110794B2Two-stage reverse-torque bent screw orientation toolUNIV CHENGDU TECHNOLOGY·Filed 2023·Granted Oct 8, 2024·0 cites·10 claims
- 1846US11946374B2Omni-directional horizontally orientaed deflecting tool for coiled tubingUNIV SOUTHWEST PETROLEUM·Filed 2023·Granted Apr 2, 2024·0 cites·7 claims
- 1945US2024310861A1Method, apparatus and system for automatically adjusting opening degree of fluid control valveUNIV CHENGDU TECHNOLOGY·Filed 2024·Application pending·0 cites
- 2044US11781420B2Displacement measuring device and speed measuring method of drilling traction robotUNIV SOUTHWEST PETROLEUM·Filed 2021·Granted Oct 10, 2023·0 cites·11 claims
- 2144US11572767B2Dynamic design method for personalized drill bit for complex difficult-to-drill formationUNIV CHENGDU TECHNOLOGY·Filed 2019·Granted Feb 7, 2023·0 cites·5 claims
- 2244US11567233B2Numerical simulation and parameter optimization method for volumetric fracturing of unconventional dual medium reservoirUNIV CHENGDU TECHNOLOGY·Filed 2019·Granted Jan 31, 2023·0 cites·3 claims
- 2344US10822927B2Device and method for solid-state fluidized mining of natural gas hydrates in shallow seabedUNIV SOUTHWEST PETROLEUM·Filed 2019·Granted Nov 3, 2020·0 cites·4 claims
- 2443US11598180B2Experimental device and experimental method for natural gas hydrate solid-state fluidized mining and crushingUNIV SOUTHWEST PETROLEUM·Filed 2018·Granted Mar 7, 2023·0 cites·10 claims
- 2541US11434727B2In situ exploitation-separation-backfilling integration apparatus used for natural gas hydratesUNIV SOUTHWEST PETROLEUM·Filed 2021·Granted Sep 6, 2022·0 cites·8 claims
- 2641US11255745B2Test device for simulating longitudinal-lateral-torsional coupled nonlinear vibration of drill string of deepwater riserless drilling and method thereforUNIV SOUTHWEST PETROLEUM·Filed 2019·Granted Feb 22, 2022·0 cites·8 claims
- 2741US11193333B2Automatic jet breaking tool for solid fluidization exploitation of natural gas hydrateUNIV SOUTHWEST PETROLEUM·Filed 2020·Granted Dec 7, 2021·0 cites·8 claims
- 2838US10590708B2Mechanics experiment system and method for perforated string in underground perforating blasting of oil-gas wellUNIV SOUTHWEST PETROLEUM·Filed 2017·Granted Mar 17, 2020·0 cites·6 claims
- 2938US2019005400A1A fuzzy evaluation and prediction method for running status of mechanical equipment with occurrence probability of failure modesUNIV SOUTHWEST PETROLEUM·Filed 2016·Application pending·0 cites
- 3037US10655436B2Device and method for solid-state fluidization mining of seabed shallow layer non-diagenetic natural gas hydratesUNIV SOUTHWEST PETROLEUM·Filed 2017·Granted May 19, 2020·0 cites·14 claims
- 3137US10626704B2Intelligent switching valve for reservoir reformation and production monitoring and control and construction method thereforUNIV CHENGDU TECHNOLOGY·Filed 2016·Granted Apr 21, 2020·0 cites·9 claims
- 3236US10550647B2Downhole automatic connection device and method for oil pipe internal communication cable used for intelligent layered water injectionUNIV SOUTHWEST PETROLEUM·Filed 2017·Granted Feb 4, 2020·0 cites·14 claims
- 3333US9206662B2Underground annular blowout preventer and assembly process thereofLIU QINGYOU·Filed 2012·Granted Dec 8, 2015·0 cites·8 claims
- 3432US11199050B2Combined crushing super-variable-diameter drill bit for natural gas hydrate exploitationSOUTHERN MARINE SCIENCE AND ENG GUANGDONG LABORATORY ZHANJIANG·Filed 2020·Granted Dec 14, 2021·0 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →