Inventor · disambiguated record
Zhanguo Ma
Also filed as: MA ZHANGUO
4 granted patents·1 pending application·4 citations·filing 2016–2025
61Inventor score
Files withUNIV CHINA MINING3CHINA ACADEMY OF RAILWAY SCIENCES CORPORATION LIMITED RAILWAY ENGINEERING RES INSTITUTE1PETROCHINA CO LTD1
Top patents by PatentIndex Score
5 records- 0189US12326222B1Sealing structure of underground high-pressure gas storage and construction method thereofUNIV CHINA MINING·Filed 2025·Granted Jun 10, 2025·1 cites·6 claims
- 0281US11313192B2Method for lowering oil pipe in gas well without well-killing, soluble bridge plug and material preparation method thereofPETROCHINA CO LTD·Filed 2018·Granted Apr 26, 2022·2 cites·10 claims
- 0362US11136724B2Fiber-reinforced prestressed reinforced concrete sleeperCHINA ACADEMY OF RAILWAY SCIENCES CORPORATION LIMITED RAILWAY ENGINEERING RES INSTITUTE·Filed 2018·Granted Oct 5, 2021·1 cites·6 claims
- 0436US9850747B2Fissured substrata water pumping apparatus and methodUNIV CHINA MINING·Filed 2016·Granted Dec 26, 2017·0 cites·20 claims
- 0529US2016138397A1Anchoring and anti-clogging drill rod for coal mine floorUNIV CHINA MINING·Filed 2016·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Zhanguo 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 →