Granted Patent
Utility
US 5,912,000 · App. 08/696,170
Chitosan induced immunopotentiation
Inventors:
Joseph S. Podolski, Kuang Hsu, Gurpreet Singh
Patented Case
View Patent ↗
Granted: Jun 15, 1999
Filed: Aug 13, 1996
Inventors
Joseph S. Podolski
Kuang Hsu
Gurpreet Singh
Assignee (at issue)
Zonagen, Inc.
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.