Inventor · disambiguated record
Liexiang Han
Also filed as: HAN LIEXIANG
11 granted patents·31 citations·filing 2011–2021
84Inventor score
Files withCHINA UNIV OF PETROLEUM (BEIJING)4UNIV CHINA PETROLEUM BEIJING4CHINA NAT PETROLEUM CORP1CNPC CHUANQING DRILLING ENG CO1LI ZHILIN1
Top patents by PatentIndex Score
11 records- 0194US9783725B1Drilling fluid additive composition and water-based drilling fluid suitable for horizontal shale gas wellsCHINA UNIV OF PETROLEUM (BEIJING)·Filed 2017·Granted Oct 10, 2017·14 cites·19 claims
- 0290US9783726B1Environment-friendly water-based drilling fluid applicable to horizontal shale gas wellsCHINA UNIV OF PETROLEUM (BEIJING)·Filed 2017·Granted Oct 10, 2017·6 cites·20 claims
- 0378US9790417B1High-density water-based drilling fluid suitable for horizontal shale gas wellsCHINA UNIV OF PETROLEUM (BEIJING)·Filed 2017·Granted Oct 17, 2017·2 cites·20 claims
- 0472US9834717B1Drilling fluid additive composition and pseudo oil-based drilling fluid suitable for horizontal shale gas wellsCHINA UNIV OF PETROLEUM (BEIJING)·Filed 2017·Granted Dec 5, 2017·1 cites·19 claims
- 0572US9638031B2Method of controlling well bore pressure based on model prediction control theory and systems theoryLI ZHILIN·Filed 2011·Granted May 2, 2017·8 cites·6 claims
- 0660US10266744B2Accelerator used for drilling fluids, water-based drilling fluid and usage thereofUNIV CHINA PETROLEUM BEIJING·Filed 2018·Granted Apr 23, 2019·0 cites·12 claims
- 0755US10253237B1Film former used for coal-bed gas well drilling and preparation method thereof, drilling fluid and usage thereofUNIV CHINA PETROLEUM BEIJING·Filed 2018·Granted Apr 9, 2019·0 cites·20 claims
- 0850US10030188B2Nano-hybrid lubricant and method thereof, and oil-based drilling fluidUNIV CHINA PETROLEUM BEIJING·Filed 2017·Granted Jul 24, 2018·0 cites·17 claims
- 0946US10000684B2Drilling fluid additive composition, and oil-based drilling fluid and use thereofUNIV CHINA PETROLEUM BEIJING·Filed 2017·Granted Jun 19, 2018·0 cites·15 claims
- 1036US11946350B2Method for remotely shutting down downhole unit of rotary steering system from groundCHINA NAT PETROLEUM CORP·Filed 2021·Granted Apr 2, 2024·0 cites·14 claims
- 1129US11225837B2Dual-speed dual—core enhanced drilling equipmentCNPC CHUANQING DRILLING ENG CO·Filed 2020·Granted Jan 18, 2022·0 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →