Granted Patent
Utility
US 4,643,806 · App. 06/545,471
Electrocatalytic energy conversion and chemicals production
Inventors:
Louis Hegedus, Costas G. Vayenas, James N. Michaels
Patented Case
View Patent ↗
Granted: Feb 17, 1987
Filed: Oct 3, 1983
Inventors
Louis Hegedus
Costas G. Vayenas
James N. Michaels
Assignees (at issue)
W. R. Grace & Co.
MASSACHUSETTS INSTITUTE OF TECHNOLOGY
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.