Granted Patent
Utility
US 6,475,534 · App. 09/768,678
Ginkgo biloba composition, method to prepare the same and uses thereof
Inventors:
De Long Xie, Ning Wang, Qi Gao, Guo An Zhang, Bao Ping Shao, Xiao Wu Jin, Xin Huang
Patented Case
View Patent ↗
Granted: Nov 5, 2002
Filed: Jan 24, 2001
Inventors
De Long Xie
Ning Wang
Qi Gao
Guo An Zhang
Bao Ping Shao
Xiao Wu Jin
Xin Huang
Assignee (at issue)
SHANGHAI XINGLING SCI. & TECH. PHARMACEUTICAL CO., LTD.,
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.