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. 28, 1998
Filed:
Feb. 25, 1997
Applicant:
Inventors:
Orlin Petrov, Berlin, DE;
Annette Prelle, Berlin, DE;
Klaus Graske, Berlin, DE;
Klaus Nickisch, Berlin, DE;
Bernd Raduchel, Berlin, DE;
Johannes Platzek, Berlin, DE;
Assignee:
Schering Aktiengesellschaft, Berlin, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
548960 ;
Abstract
A process for the production of 1,4,7,10-tetraazacyclododecane (cyclene) and its derivatives on an industrial scale comprises cyclotetramerizing of benzylaziridine that is produced in situ.