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:
Oct. 21, 2008
Filed:
Jan. 17, 2005
Nikolai (Mykola) Ignatyev, Duisburg, DE;
Urs Welz-biermann, Heppenheim, DE;
German Bissky, Wuppertal, DE;
Helge Willner, Muehlheim/Ruhr, DE;
Nikolai (Mykola) Ignatyev, Duisburg, DE;
Urs Welz-Biermann, Heppenheim, DE;
German Bissky, Wuppertal, DE;
Helge Willner, Muehlheim/Ruhr, DE;
Merck Patent GmbH, Darmstadt, DE;
Abstract
The present invention relates to a two-step process for the preparation of guanidinium salts of the formula (1), where the substituents R have a meaning indicated in Claim, and Ais a sulfonate, alkyl- or arylsulfate, hydrogensulfate, imide, methanide, carboxylate, phosphate, phosphinate, phosphonate, borate, thiocyanate, perchlorate, fluorosilicate or nitrate, and to intermediate compounds from this process.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile