Granted Patent
Utility
US 4,801,762 · App. 07/014,405
Methane conversion process
Inventor:
David W. Leyshon
Patented Case
View Patent ↗
Granted: Jan 31, 1989
Filed: Feb 13, 1987
Inventor
David W. Leyshon
Assignee (at issue)
Atlantic Richfield 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.