Inventor · disambiguated record
Guo An Zhang
Also filed as: ZHANG GUO AN
3 granted patents·35 citations·filing 1998–2002
69Inventor score
Top patents by PatentIndex Score
3 records- 0173US6475534B2Ginkgo biloba composition, method to prepare the same and uses thereofSHANGHAI XINGLING SCI & TECH P·Filed 2001·Granted Nov 5, 2002·6 cites·4 claims
- 0266US6187314B1Ginkgo biloba composition method to prepare the same and uses thereofSHANGHAI INST MATERIA MEDICA·Filed 1998·Granted Feb 13, 2001·29 cites·6 claims
- 0355US6632460B2Ginkgo biloba composition, method to prepare the same and uses thereofSHANGHAI XINGLING SCI & TECH P·Filed 2002·Granted Oct 14, 2003·0 cites·16 claims
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