Granted Patent
Utility
US 5,151,340 · App. 07/546,988
Selected photoactive methylolated cyclohexanol compounds and their use in radiation-sensitive mixtures
Inventor:
Sobhy Tadros
Patented Case
View Patent ↗
Granted: Sep 29, 1992
Filed: Jul 2, 1990
Inventor
Sobhy Tadros
Assignee (at issue)
OCG Microelectronic Materials, 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.