Granted Patent
Utility
US 4,978,799 · App. 07/428,812
Production of detergent range alcohols and ketones using porphyrin catalysts
Inventors:
John R. Sanderson, Edward T. Marquis, Howard F. Payton
Patented Case
View Patent ↗
Granted: Dec 18, 1990
Filed: Oct 30, 1989
Inventors
John R. Sanderson
Edward T. Marquis
Howard F. Payton
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.