Granted Patent
Utility
US 5,830,741 · App. 08/760,893
Composition for tissue dissociation containing collagenase I and II from clostridium histolyticum and a neutral protease
Inventors:
Francis E. Dwulet, Marilyn E. Smith
Patented Case
View Patent ↗
Granted: Nov 3, 1998
Filed: Dec 6, 1996
Inventors
Francis E. Dwulet
Marilyn E. Smith
Assignee (at issue)
Boehringer Mannheim GmbH
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.