Granted Patent
Utility
US 5,637,591 · App. 08/460,649
Antimicrobial and anticollagenase activity of phenazine-5, 10-dioxide and derivatives
Inventors:
Mitsunori Ono, Y.-S. Edmond Cheng, Douglas F. Marks, Jr., Hiroshi Kataguchi
Patented Case
View Patent ↗
Granted: Jun 10, 1997
Filed: Jun 2, 1995
Inventors
Mitsunori Ono
Y.-S. Edmond Cheng
Douglas F. Marks, Jr.
Hiroshi Kataguchi
Assignee (at issue)
Fuji ImmunoPharmaceuticals 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.