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. 15, 2012
Filed:
Sep. 18, 2008
Applicants:
Stephen E. Belmont, Baton Rouge, LA (US);
John E. Chubb, Iii, Pennsylvania Furnace, PA (US);
Inventors:
Stephen E. Belmont, Baton Rouge, LA (US);
John E. Chubb, III, Pennsylvania Furnace, PA (US);
Assignee:
Albemarle Corporation, Baton Rouge, LA (US);
Primary Examiner:
Int. Cl.
CPC ...
C07D 249/08 (2006.01); C07D 401/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
Novel methods for producing 1,2,4-triazol-3-one from semicarbazide hydrochloride and formic acid are provided. In methods of this invention, water is used in removal of unreacted formic acid to increase yield and purity of produced 1,2,4-triazol-3-one.