Granted Patent
Utility
US 5,387,721 · App. 08/170,849
Methyl tertiary butyl ether process
Inventors:
Charles J. Kruse, Kyle Preston, Brian L. Benac
Patented Case
View Patent ↗
Granted: Feb 7, 1995
Filed: Dec 21, 1993
Inventors
Charles J. Kruse
Kyle Preston
Brian L. Benac
Assignee (at issue)
Texaco Inc.
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.