Granted Patent
Utility
US 6,767,989 · App. 10/182,880
Phosphorus compounds
Inventors:
Keith Philip Davis, Graham Otter, Gary Woodward
Patented Case
View Patent ↗
Granted: Jul 27, 2004
Filed: Oct 9, 2002
Inventors
Keith Philip Davis
Graham Otter
Gary Woodward
Assignee (at issue)
RHODIA CONSUMER SPECIALTIES 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.