Granted Patent
Utility
US 6,740,199 · App. 09/915,750
Process for digesting woodchips with a sultaine and a polyglycoside
Inventors:
Abdul Q. Khan, George K. Wai
Patented Case
View Patent ↗
Granted: May 25, 2004
Filed: Jul 26, 2001
Inventors
Abdul Q. Khan
George K. Wai
Assignee (at issue)
Ashland, 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.