Granted Patent
Utility
US 5,891,196 · App. 08/843,504
Method for actively binding heparin to crosslinked biological tissues
Inventors:
Catherine T. Lee, Jun Yang
Patented Case
View Patent ↗
Granted: Apr 6, 1999
Filed: Apr 16, 1997
Inventors
Catherine T. Lee
Jun Yang
Assignee (at issue)
Baxter International 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.