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. 20, 2004
Filed:
Aug. 28, 2002
Applicant:
Inventors:
Michael Bödiger, League City, TX (US);
Rainer Neumann, Krefeld, DE;
Frieder Heydenreich, Düsseldorf, DE;
Michael Prein, Brasschaat, BE;
Gerhard Fennhoff, Willich, DE;
Ulrich Schnegg, Leverkusen, DE;
Rudolf Wagner, Köln, DE;
Wolfgang Wambach, Köln, DE;
Reinhold Klipper, Köln, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 3/912 ;
U.S. Cl.
CPC ...
C07C 3/912 ;
Abstract
Monodisperse cation-exchangers and anon-exchangers are conditioned by a process and thereafter used as catalysts and for the production of bisphenols.