Inventor · disambiguated record
Qingfeng Cai
Also filed as: CAI QINGFENG
4 granted patents·1 pending application·1 citations·filing 2013–2024
55Inventor score
Top patents by PatentIndex Score
5 records- 0163US10287309B2Disaccharide intermediate and synthesis method thereofZHEJIANG HISUN PHARM CO LTD·Filed 2014·Granted May 14, 2019·1 cites·7 claims
- 0263US2025059574A1Methods for preparing (2s,3r)-p-methylsulfonylphenylserineUNIV TAIZHOU·Filed 2024·Application pending·0 cites
- 0348US9434702B2Method for preparing linezolid intermediateZHEJIANG HISUN PHARM CO LTD·Filed 2013·Granted Sep 6, 2016·0 cites·9 claims
- 0444US11153652B2Method for displaying live broadcast room, apparatus, device, and storage mediumGUANGZHOU HUYA INFORMATION TECH CO LTD·Filed 2019·Granted Oct 19, 2021·0 cites·11 claims
- 0537US9676736B24-substituent-2-hydroxylmorpholine-3-one and preparation method thereofZHEJIANG HISUN PHARM CO LTD·Filed 2013·Granted Jun 13, 2017·0 cites·20 claims
Join the waitlist — get patent alerts
Get an alert when Qingfeng Cai 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 →