Granted Patent
Utility
US 4,965,294 · App. 07/347,633
Photoinitiator dispersions
Inventors:
Jorg Ohngemach, Heiko Zeh
Patented Case
View Patent ↗
Granted: Oct 23, 1990
Filed: May 5, 1989
Inventors
Jorg Ohngemach
Heiko Zeh
Assignee (at issue)
Merck Patent GmbH
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.