Granted Patent
Utility
US 6,498,029 · App. 09/886,581
Pentose fermentation of normally toxic lignocellulose prehydrolysate with strain of Pichia stipitis yeast using air
Inventors:
Fred Keller, Quang A. Nguyen
Patented Case
View Patent ↗
Granted: Dec 24, 2002
Filed: Jun 21, 2001
Inventors
Fred Keller
Quang A. Nguyen
Assignee (at issue)
Midwest Research Institute, Inc.
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.