Granted Patent
Utility
US 4,859,591 · App. 07/083,603
Transamination process for producing amino acids
Inventors:
James F. Walter, Martin B. Sherwin
Patented Case
View Patent ↗
Granted: Aug 22, 1989
Filed: Aug 7, 1987
Inventors
James F. Walter
Martin B. Sherwin
Assignee (at issue)
W.R. Grace & Co. Conn.
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.