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. 13, 1990
Filed:
Feb. 16, 1989
Applicant:
Inventor:
Bryce P Anderson, Carlsbad, CA (US);
Assignee:
Exxon Research and Engineering Company, Florham Park, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210651 ; 21050039 ; 264 41 ; 264216 ; 26433112 ;
Abstract
Polyimide ultrafiltration membranes made using a single solvent and containing a pore forming agent have been produced and have been found to be useful for recovering dewaxing aid used in dewaxing process.
Anderson, Bryce. (1990). Ultrafiltration polyamide membrane and its use for recovery of dewaxing (U.S. Patent No. 4908134). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4908134
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile