Granted Patent
Utility
US 6,388,121 · App. 09/896,191
Process for the production of phosphor organic compounds
Inventors:
Ernst Gronmaier, Peter Staniek
Patented Case
View Patent ↗
Granted: May 14, 2002
Filed: Jun 29, 2001
Inventors
Ernst Gronmaier
Peter Staniek
Assignee (at issue)
Clariant Finance (BVI) Limited
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.