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:
Apr. 10, 2001
Filed:
Oct. 06, 1997
Applicant:
Inventors:
Freddy Helmer-Metzmann, Mainz, DE;
Frank Osan, Kelkheim/Taunus, DE;
Arnold Schneller, Mainz, DE;
Helmut Ritter, Wuppertal, DE;
Konstantin Ledjeff, Krozingen, DE;
Roland Nolte, Freiburg, DE;
Ralf Thorwirth, Wuppertal, DE;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/00 ; H01M 8/10 ; C08G 7/524 ; C08G 7/530 ;
U.S. Cl.
CPC ...
H01M 4/00 ; H01M 8/10 ; C08G 7/524 ; C08G 7/530 ;
Abstract
In order to produce a polymer electrolyte membrane from sulfonated, aromatic polyether ketone, an aromatic polyether ketone of the formula (I)
Helmer-Metzmann, Freddy. (2001). Polymer electrolyte membrane and process for the production thereof (U.S. Patent No. 6214488). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6214488
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile