Granted Patent
Utility
US 4,659,667 · App. 06/735,971
Process to recover crystalline enzymes and crystalline enzymes produced thereby
Inventors:
Jack W. Brewer, Chong Y. Kim
Patented Case
View Patent ↗
Granted: Apr 21, 1987
Filed: May 20, 1985
Inventors
Jack W. Brewer
Chong Y. Kim
Assignee (at issue)
Miles Laboratories, 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.