Granted Patent
Utility
US 5,320,886 · App. 07/791,999
Hydrophilic crosslinking monomers and polymers made therefrom
Inventor:
Rafael L. Bowen
Patented Case
View Patent ↗
Granted: Jun 14, 1994
Filed: Nov 14, 1991
Inventor
Rafael L. Bowen
Assignee (at issue)
American Dental Association Health Foundation
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.