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:
Jan. 01, 2013
Filed:
Jul. 10, 2009
Bernd Wolf, Fussgoenheim, DE;
Sebastian Peer Smidt, Oftersheim, DE;
Volker Maywald, Ludwigshafen, DE;
Christopher Koradin, Ludwigshafen, DE;
Michael Keil, Freinsheim, DE;
Thomas Zierke, Boehl-Iggelheim, DE;
Michael Rack, Eppelheim, DE;
Bernd Wolf, Fussgoenheim, DE;
Sebastian Peer Smidt, Oftersheim, DE;
Volker Maywald, Ludwigshafen, DE;
Christopher Koradin, Ludwigshafen, DE;
Michael Keil, Freinsheim, DE;
Thomas Zierke, Boehl-Iggelheim, DE;
Michael Rack, Eppelheim, DE;
BASF SE, Ludwigshafen, DE;
Abstract
A process for preparing 1,3-disubstituted pyrazolecarboxylic esters of the formula (I) where where Ris C-C-alkyl at from (−41) to (−80)° C. into an alkyl hydrazine of the formula IIHN—NH-lower alkyl   (II).