Granted Patent
Utility
US 6,136,997 · App. 08/332,671
Process for the formation of hydrocarbyl BIS(hydrocarbyl phosphate)
Inventors:
Danielle A. Bright, Ronald L. Pirrelli
Patented Case
View Patent ↗
Granted: Oct 24, 2000
Filed: Nov 1, 1994
Inventors
Danielle A. Bright
Ronald L. Pirrelli
Assignee (at issue)
AKZO NOBEL N.V.
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.