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. 29, 2023
Filed:
Jun. 25, 2021
Applicant:
Evonik Operations Gmbh, Essen, DE;
Inventors:
Emmanouil Spyrou, Schermbeck, DE;
Holger Loesch, Herne, DE;
Susanne Kreischer, Herten, DE;
Andrea Diesveld, Gescher, DE;
Andrea Thesing, Ahaus, DE;
Jörg-Joachim Nitz, Essen, DE;
Assignee:
Evonik Operations GmbH, Essen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 263/06 (2006.01); C07C 269/04 (2006.01);
U.S. Cl.
CPC ...
C07C 263/06 (2013.01); C07C 269/04 (2013.01);
Abstract
The invention relates to a process for preparing a diisocyanate of the formula (A)