Granted Patent
Utility
US 6,602,994 · App. 09/248,246
Derivatized microfibrillar polysaccharide
Inventors:
Mary Cash, Anita N. Chan, Herbert T. Conner, Patrick J. Cowan, Robert A. Gelman, Kate Marritt Lusvardi, Samuel A. Thompson, Frank P. Tise
Patented Case
View Patent ↗
Granted: Aug 5, 2003
Filed: Feb 10, 1999
Inventors
Mary Cash
Anita N. Chan
Herbert T. Conner
Patrick J. Cowan
Robert A. Gelman
Kate Marritt Lusvardi
Samuel A. Thompson
Frank P. Tise
Assignee (at issue)
HERCULES LLC
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.