Granted Patent
Utility
US 5,904,739 · App. 08/702,884
Storage-stable liquid brightener formulations
Inventors:
Thomas Martini, Petra Rothe
Patented Case
View Patent ↗
Granted: May 18, 1999
Filed: Aug 26, 1996
Inventors
Thomas Martini
Petra Rothe
Assignee (at issue)
Hoechst 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.