Granted Patent
Utility
US 5,430,198 · App. 08/148,244
Diisopropyl ehter/MTBE cogeneration from crude by-product acetone
Inventors:
John F. Knifton, Pei-Shing E. Dai
Patented Case
View Patent ↗
Granted: Jul 4, 1995
Filed: Nov 8, 1993
Inventors
John F. Knifton
Pei-Shing E. Dai
Assignee (at issue)
Texaco Chemical 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.