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:
Sep. 13, 2016
Filed:
Aug. 05, 2015
Applicant:
Dow Agrosciences Llc, Indianapolis, IN (US);
Inventors:
Matthew L. Grandbois, Midland, MI (US);
David S. Laitar, Midland, MI (US);
James M. Renga, Spokane, WA (US);
Gregory T. Whiteker, Carmel, IN (US);
Assignee:
Dow AgroSciences LLC, Indianapolis, IN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 213/79 (2006.01); C07D 213/803 (2006.01); B01J 31/18 (2006.01);
U.S. Cl.
CPC ...
C07D 213/803 (2013.01); B01J 31/1815 (2013.01); B01J 2531/847 (2013.01);
Abstract
4,5,6-Trichloropicolinic acid is prepared by selectively dechlorinating 3,4,5,6-tetrachloropicolinic acid with zinc and a catalyst prepared from a nickel compound and a bidentate ligand in a polar solvent.