Granted Patent
Utility
US 5,494,574 · App. 08/287,869
Mechanically mixed packed bed bioreactor
Inventors:
Ronald Unterman, Brian R. Folsom, A. Paul Togna
Patented Case
View Patent ↗
Granted: Feb 27, 1996
Filed: Aug 9, 1994
Inventors
Ronald Unterman
Brian R. Folsom
A. Paul Togna
Assignee (at issue)
Envirogen, 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.