Granted Patent
Utility
US 4,918,244 · App. 07/045,631
Preparation of MTBE from TBA and methanol
Inventors:
Edward C. Nelson, David A. Storm, Mahendra S. Patel
Patented Case
View Patent ↗
Granted: Apr 17, 1990
Filed: May 4, 1987
Inventors
Edward C. Nelson
David A. Storm
Mahendra S. Patel
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.