Inventor · disambiguated record
Changfeng Li
Also filed as: LI CHANGFENG
2 granted patents·1 pending application·7 citations·filing 2014–2019
50Inventor score
Files withASYMCHEM LAB TIANJIN CO LTD3
Top patents by PatentIndex Score
3 records- 0185US10000470B1Method for preparing nilotinibASYMCHEM LAB TIANJIN CO LTD·Filed 2015·Granted Jun 19, 2018·6 cites·20 claims
- 0266US10246524B2Method for preparing sulfobutyl ether-β-cyclodextrinASYMCHEM LAB TIANJIN CO LTD·Filed 2014·Granted Apr 2, 2019·1 cites·17 claims
- 0348US2023021514A1Etelcalcetide intermediate and method for synthesizing etelcalcetideASYMCHEM LAB TIANJIN CO LTD·Filed 2019·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Changfeng Li files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →