Granted Patent
Utility
US 5,453,559 · App. 08/221,616
Hybrid condensation-absorption olefin recovery
Inventors:
Christopher L. Phillips, Vijender K. Verma
Patented Case
View Patent ↗
Granted: Sep 26, 1995
Filed: Apr 1, 1994
Inventors
Christopher L. Phillips
Vijender K. Verma
Assignee (at issue)
The M.W. Kellogg 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.