Granted Patent
Utility
US 6,136,894 · App. 09/443,871
Aqueous epoxy resin system with curing agent from reacting acid-terminated polyalkylene glycol with epoxy-amine adduct
Inventors:
Charles J. Stark, Gayle Edward Back, Jimmy D. Elmore, Kalyan Ghosh, Pen-Chung Wang, Kailash Dangayach
Patented Case
View Patent ↗
Granted: Oct 24, 2000
Filed: Nov 19, 1999
Inventors
Charles J. Stark
Gayle Edward Back
Jimmy D. Elmore
Kalyan Ghosh
Pen-Chung Wang
Kailash Dangayach
Assignee (at issue)
SHELL OIL COMPANY
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.