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:
Aug. 24, 1993
Filed:
Oct. 21, 1992
Applicant:
Inventors:
Herbert Hugl, Bergisch Gladbach, DE;
Rolf Dhein, Krefeld, DE;
Ralf Dujardin, Willich, DE;
Karlheinz Hildenbrand, Krefeld, DE;
Knud Reuter, Krefeld, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; B01D / ; B01D / ; B01D / ;
U.S. Cl.
CPC ...
21050027 ; 210654 ; 21050028 ; 21050041 ;
Abstract
Asymmetric semipermeable membranes which consist of aromatic polycondensates having recurring units of the formula
Hugl, Herbert. (1993). Asymmetric semipermeable membranes of aromatic polycondensates, (U.S. Patent No. 5238570). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5238570
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile