Granted Patent
Utility
US 5,744,331 · App. 08/496,788
Process for producing L-leucine
Inventors:
Tetsuo Nakano, Masato Ikeda, Kuniki Kino, Satoru Furukawa
Patented Case
View Patent ↗
Granted: Apr 28, 1998
Filed: Jun 29, 1995
Inventors
Tetsuo Nakano
Masato Ikeda
Kuniki Kino
Satoru Furukawa
Assignee (at issue)
KYOWA HAKKO KOGYO CO., LTD.
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.