Inventor · disambiguated record
Xiafan Zeng
Also filed as: Zeng Xiafan
2 granted patents·4 pending applications·2 citations·filing 2020–2022
36Inventor score
Files withCHONGQING UPGRA BIOTECHNOLOGY CO LTD6
Top patents by PatentIndex Score
6 records- 0175US11793881B2Polyethylene glycol conjugate medicament, preparation method therefor and use thereofCHONGQING UPGRA BIOTECHNOLOGY CO LTD·Filed 2020·Granted Oct 24, 2023·1 cites·22 claims
- 0272US11813334B2Polyethylene glycol conjugate drug, and preparation method therefor and use thereofCHONGQING UPGRA BIOTECHNOLOGY CO LTD·Filed 2020·Granted Nov 14, 2023·1 cites·23 claims
- 0356US2023348671A1Polyethylene glycol conjugate drug synergist, and preparation method therefor, and use thereofCHONGQING UPGRA BIOTECHNOLOGY CO LTD·Filed 2021·Application pending·0 cites
- 0452US2024269299A1Polyethylene glycol-drug conjugate and use thereofCHONGQING UPGRA BIOTECHNOLOGY CO LTD·Filed 2022·Application pending·0 cites
- 0549US2024115713A1Polyethylene glycol conjugate drug, and preparation method therefor and use thereofCHONGQING UPGRA BIOTECHNOLOGY CO LTD·Filed 2021·Application pending·0 cites
- 0641US2023073036A1Polyethylene glycol conjugate drug, preparation method therefor and application thereofCHONGQING UPGRA BIOTECHNOLOGY CO LTD·Filed 2020·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Xiafan Zeng 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 →