Granted Patent
Utility
US 4,940,665 · App. 07/103,550
Method for granulation of enzyme
Inventors:
Hitoshi Iijima, Kunio Nishimura
Patented Case
View Patent ↗
Granted: Jul 10, 1990
Filed: Aug 4, 1987
Inventors
Hitoshi Iijima
Kunio Nishimura
Assignee (at issue)
Showa Denko K.K.
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.