Inventor · disambiguated record
Guangchang Ma
Also filed as: MA GUANGCHANG
11 granted patents·98 citations·filing 2015–2019
89Inventor score
Top patents by PatentIndex Score
11 records- 0196US9410071B1Oil-based viscosifier of drilling fluid and the preparation method thereofCHINA UNIV OF PETROLEUM (BEIJING)·Filed 2015·Granted Aug 9, 2016·19 cites·14 claims
- 0294US10308857B1Super-amphiphobic composite material and use of the same as inhibitor, lubricant, reservoir protectant, and accelerator in water-based drilling fluidsUNIV CHINA PETROLEUM BEIJING·Filed 2019·Granted Jun 4, 2019·11 cites·18 claims
- 0394US9890318B1Drilling fluid additive composition and water-based drilling fluid suitable for high-pressure pluggingUNIV CHINA PETROLEUM BEIJING·Filed 2017·Granted Feb 13, 2018·15 cites·20 claims
- 0494US9790415B1Modified silicon dioxide nano-particles and preparation method thereof, and drilling fluid suitable for shale gas wellsCHINA UNIV OF PETROLEUM (BEIJING)·Filed 2017·Granted Oct 17, 2017·22 cites·20 claims
- 0594US9783725B1Drilling 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
- 0691US9745501B1Additive composition suitable for viscosity reduction of oil-based drilling fluid, oil-based drilling fluid and use thereofCHINA UNIV OF PETROLEUM (BEIJING)·Filed 2017·Granted Aug 29, 2017·8 cites·15 claims
- 0790US9783726B1Environment-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
- 0878US9790417B1High-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
- 0972US9834717B1Drilling 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
- 1056US10336931B2Use of dual-cation fluorocarbon surfactant as amphiphobic wettability reversal agent in drilling fluidUNIV CHINA PETROLEUM BEIJING·Filed 2018·Granted Jul 2, 2019·0 cites·13 claims
- 1146US10000684B2Drilling fluid additive composition, and oil-based drilling fluid and use thereofUNIV CHINA PETROLEUM BEIJING·Filed 2017·Granted Jun 19, 2018·0 cites·15 claims
Join the waitlist — get patent alerts
Get an alert when Guangchang Ma files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →