The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 19, 1987
Filed:
Mar. 24, 1986
Applicant:
Inventor:
Marinda L Wu, San Ramon, CA (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
55 16 ; 55 68 ;
Abstract
The invention is a method of separating a gas comprising helium, oxygen, nitrogen or carbon dioxide from a mixture of gases containing helium, oxygen, nitrogen or carbon dioxide wherein the method comprises
Wu, Marinda. (1987). Gas separations using membranes comprising perfluorinated polymers with (U.S. Patent No. 4666468). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4666468
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile