Granted Patent
Utility
US 5,952,215 · App. 09/184,616
Enzyme composition for tissue dissociation
Inventors:
Francis E. Dwulet, Marilyn E. Smith
Patented Case
View Patent ↗
Granted: Sep 14, 1999
Filed: Nov 2, 1998
Inventors
Francis E. Dwulet
Marilyn E. Smith
Assignee (at issue)
Roche Diagnostics 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.