Granted Patent
Utility
US 4,906,396 · App. 07/016,874
Protected enzyme systems
Inventors:
Per Falholt, Arne D. Fog, Anthony Martin
Patented Case
View Patent ↗
Granted: Mar 6, 1990
Filed: Feb 20, 1987
Inventors
Per Falholt
Arne D. Fog
Anthony Martin
Assignees (at issue)
Albright & Wilson Limited
Novo Nordisk A/S
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.