Granted Patent
Utility
US 5,010,141 · App. 07/510,504
Reactive silicone and/or fluorine containing hydrophilic prepolymers and polymers thereof
Inventor:
Karl F. Mueller
Patented Case
View Patent ↗
Granted: Apr 23, 1991
Filed: Apr 18, 1990
Inventor
Karl F. Mueller
Assignee (at issue)
Ciba-Geigy
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.