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:
May. 09, 2006
Filed:
Sep. 26, 2003
Applicants:
Daniel Koch, Duisburg, DE;
Hans-georg Pirkl, Leverkusen, DE;
Torsten Hagen, Essen, DE;
Stefan Wershofen, Mönchengladbach, DE;
Inventors:
Daniel Koch, Duisburg, DE;
Hans-Georg Pirkl, Leverkusen, DE;
Torsten Hagen, Essen, DE;
Stefan Wershofen, Mönchengladbach, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08G 12/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a method of producing polyisocyanates of the diphenylmethane series including the steps of
Koch, Daniel. (2006). Process for the production of polyisocyanates of the diphenylmethane series by phosgenation of non-neutralized polyamine of the diphenylmethane series (U.S. Patent No. 7041776). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7041776
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile