Granted Patent
Utility
US 6,143,552 · App. 09/265,867
Process for producing L-amino acids by fermentation
Inventors:
Kazuyuki Okamoto, Masato Ikeda, Kuniki Kino
Patented Case
View Patent ↗
Granted: Nov 7, 2000
Filed: Mar 11, 1999
Inventors
Kazuyuki Okamoto
Masato Ikeda
Kuniki Kino
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.