Granted Patent
Utility
US 4,354,859 · App. 06/290,484
Enhanced gas separation by selective adsorption
Inventors:
George E. Keller, II, Chia-Huei A. Kuo
Patented Case
View Patent ↗
Granted: Oct 19, 1982
Filed: Aug 6, 1981
Inventors
George E. Keller, II
Chia-Huei A. Kuo
Assignee (at issue)
Union Carbide Corporation
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.