Granted Patent
Utility
US 6,294,499 · App. 09/693,720
Methods for preparing an alkylation catalyst, and for ortho-alkylating hydroxyaromatic compounds; and related compositions
Inventors:
Beth A. Watson, Narsi Devanathan
Patented Case
View Patent ↗
Granted: Sep 25, 2001
Filed: Oct 20, 2000
Inventors
Beth A. Watson
Narsi Devanathan
Assignee (at issue)
General Electric Company
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.