Granted Patent
Utility
US 5,332,503 · App. 08/073,272
Process for purifying collagenase
Inventors:
Catherine T. Lee, Cynthia Hornacek, Tan Dinh
Patented Case
View Patent ↗
Granted: Jul 26, 1994
Filed: Apr 16, 1993
Inventors
Catherine T. Lee
Cynthia Hornacek
Tan Dinh
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.