Inventor · disambiguated record
Zongfa Xie
Also filed as: XIE ZONGFA
2 granted patents·2 citations·filing 2013–2020
33Inventor score
Top patents by PatentIndex Score
2 records- 0152US9995188B2Oil control device for fully variable hydraulic valve system of internal combustion engineUNIV SHANDONG·Filed 2013·Granted Jun 12, 2018·2 cites·4 claims
- 0228US11111825B1Hydraulic valve mechanism with variable valve opening times and internal combustion engineLONGKOU ZHONGYU INVEST HOLDING LTD·Filed 2020·Granted Sep 7, 2021·0 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →