Granted Patent
Utility
US 4,808,529 · App. 06/832,230
Enzymes immobilized on polyamides or cellulose hydrate
Inventors:
Peter Doppelfeld, Gary M. Oosta, Alexander Riebel, Karl-Wilhelm Schranz
Patented Case
View Patent ↗
Granted: Feb 28, 1989
Filed: Feb 24, 1986
Inventors
Peter Doppelfeld
Gary M. Oosta
Alexander Riebel
Karl-Wilhelm Schranz
Assignee (at issue)
Miles 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.