Granted Patent
Utility
US 6,184,014 · App. 09/110,960
Bacterial polyphenol oxidase from bacillus for use in oxidation of colored substances
Inventors:
Takashi Echigo, Ritsuko Ohno
Patented Case
View Patent ↗
Granted: Feb 6, 2001
Filed: Jul 7, 1998
Inventors
Takashi Echigo
Ritsuko Ohno
Assignee (at issue)
Novo Nordisk A/S
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.