Inventor · disambiguated record
Changqing Feng
Also filed as: FENG CHANGQING
2 granted patents·0 citations·filing 2020–2021
22Inventor score
Top patents by PatentIndex Score
2 records- 0145US12422577B2Gas detector fabrication method, gas detector, and ray detection deviceUNIV SCIENCE & TECHNOLOGY CHINA·Filed 2021·Granted Sep 23, 2025·0 cites·18 claims
- 0233US11634961B2Metal-based dissolvable ball seat, setting system and setting methodPETROCHINA CO LTD·Filed 2020·Granted Apr 25, 2023·0 cites·36 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →