Inventor · disambiguated record

Qiumin Yang

Also filed as: YANG QIUMIN

2 granted patents·1 citations·filing 2023–2024

30Inventor score

Technology areasB22F C22B

Files withCHONGYI ZHANGYUAN TUNGSTEN CO LTD2

Top patents by PatentIndex Score

2 records

0182US11999626B1Leaching method of scheeliteCHONGYI ZHANGYUAN TUNGSTEN CO LTD·Filed 2023·Granted Jun 4, 2024·1 cites·10 claims
0257US12485477B1Coarse grain cemented carbide and preparation method thereofCHONGYI ZHANGYUAN TUNGSTEN CO LTD·Filed 2024·Granted Dec 2, 2025·0 cites·5 claims

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →