Inventor · disambiguated record
Fengfeng Yan
Also filed as: YAN FENGFENG
1 granted patent·3 pending applications·0 citations·filing 2020–2022
8Inventor score
Files withZHEJIANG HUAHAI PHARM CO LTD4
Top patents by PatentIndex Score
4 records- 0152US2025051311A1Method for Preparing High-Purity LosartanZHEJIANG HUAHAI PHARM CO LTD·Filed 2022·Application pending·0 cites
- 0251US2025115584A1High-Purity Losartan Potassium and Preparation Method ThereforZHEJIANG HUAHAI PHARM CO LTD·Filed 2022·Application pending·0 cites
- 0337US2025214933A1Method for purifying levetiracetam intermediateZHEJIANG HUAHAI PHARM CO LTD·Filed 2022·Application pending·0 cites
- 0433US12227476B2Preparation method for levetiracetam intermediateZHEJIANG HUAHAI PHARM CO LTD·Filed 2020·Granted Feb 18, 2025·0 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →