Granted Patent
Utility
US 5,543,544 · App. 08/385,860
Bis(pentaerythritol phosphate alcohol) hydrogen phosphonate
Inventor:
Jeffrey E. Telschow
Patented Case
View Patent ↗
Granted: Aug 6, 1996
Filed: Feb 9, 1995
Inventor
Jeffrey E. Telschow
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.