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:
Mar. 26, 2002
Filed:
May. 19, 2000
Applicant:
Inventors:
Ingo Pinnau, Palo Alto, CA (US);
Zhenjie He, Fremont, CA (US);
Andre R. Da Costa, Palo Alto, CA (US);
Karl D. Amo, Mountain View, CA (US);
Ramin Daniels, San Jose, CA (US);
Assignee:
Membrane Technology and Research, Inc., Menlo Park, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 5/322 ; B01D 7/136 ;
U.S. Cl.
CPC ...
B01D 5/322 ; B01D 7/136 ;
Abstract
A process for separating a gas from a gas mixture containing an organic compound gas or vapor, using gas-separation membranes selective for the gas over the organic compound. The membranes use a selective layer made from a polymer having repeating units of a fluorinated cyclic structure of an at least 5-member ring, and demonstrate good resistance to plasticization by the organic components in the gas mixture under treatment.