Granted Patent
Utility
US 5,759,944 · App. 08/897,158
Catalyst material
Inventors:
Jeffrey S Buchanan, Robert J. Potter, Thomas Robertson Ralph
Patented Case
View Patent ↗
Granted: Jun 2, 1998
Filed: Jul 18, 1997
Inventors
Jeffrey S Buchanan
Robert J. Potter
Thomas Robertson Ralph
Assignee (at issue)
JOHNSON MATTHEY PUBLIC LIMITED 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.