Inventor · disambiguated record
Chengfa Yang
Also filed as: YANG CHENGFA
2 granted patents·4 citations·filing 2017–2018
40Inventor score
Top patents by PatentIndex Score
2 records- 0178US11746406B2Mask, preparation method and operation method thereofBOE TECHNOLOGY GROUP CO LTD·Filed 2017·Granted Sep 5, 2023·4 cites·7 claims
- 0243US11250185B2Method and apparatus for calculating equivalent mechanical parameters of film layer etching regionORDOS YUANSHENG OPTOELECTRONICS CO LTD·Filed 2018·Granted Feb 15, 2022·0 cites·20 claims
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