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. 13, 2014
Filed:
Nov. 03, 2009
Frederik Menges, Schriesheim, DE;
Joachim Gebhardt, Wachenheim, DE;
Michael Rack, Eppelheim, DE;
Michael Keil, Freinsheim, DE;
Rodney F. Klima, Quincy, IL (US);
David Cortes, Quincy, IL (US);
Robert Leicht, Hannibal, MO (US);
Helmut Zech, Bad Duerkheim, DE;
Jochen Schroeder, Lambsheim, DE;
Frederik Menges, Schriesheim, DE;
Joachim Gebhardt, Wachenheim, DE;
Michael Rack, Eppelheim, DE;
Michael Keil, Freinsheim, DE;
Rodney F. Klima, Quincy, IL (US);
David Cortes, Quincy, IL (US);
Robert Leicht, Hannibal, MO (US);
Helmut Zech, Bad Duerkheim, DE;
Jochen Schroeder, Lambsheim, DE;
BASF SE, Ludwigshafen, DE;
Abstract
A process for manufacturing 5-chloromethyl-2,3-pyridine dicarboxylic acid anhydrides (I) Compounds (I) are useful intermediates in the synthesis of herbicidal imidazolinones.