Granted Patent
Utility
US 5,643,792 · App. 08/181,242
Mutant strain of Pichia pastoris which utilizes methanol in the presence of glucose
Inventors:
Ken Okabayashi, Takao Ohmura, Kazumasa Yokoyama, Haruhide Kawabe
Patented Case
View Patent ↗
Granted: Jul 1, 1997
Filed: Jan 13, 1994
Inventors
Ken Okabayashi
Takao Ohmura
Kazumasa Yokoyama
Haruhide Kawabe
Assignee (at issue)
Green Cross Corporation
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.