Granted Patent
Utility
US 6,780,628 · App. 09/731,971
Enzyme treatment
Inventors:
David M. Anderson, Lin Liu, Humg-Yu Hsiao, Douglas W. Fodge
Patented Case
View Patent ↗
Granted: Aug 24, 2004
Filed: Dec 8, 2000
Inventors
David M. Anderson
Lin Liu
Humg-Yu Hsiao
Douglas W. Fodge
Assignee (at issue)
Chemgen 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.