Granted Patent
Utility
US 6,168,799 · App. 09/231,311
.beta.-D-glucan topical composition
Inventor:
Barbara Kure Klein
Patented Case
View Patent ↗
Granted: Jan 2, 2001
Filed: Jan 13, 1999
Inventor
Barbara Kure Klein
Assignee (at issue)
Brennen Medical, 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.