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:
Jul. 29, 2014
Filed:
Sep. 22, 2008
Applicants:
Kazuo Murakami, Kashiba, JP;
Masahiro Takeda, Nishinomiya, JP;
Hirofumi Kato, Toyonaka, JP;
Inventors:
Assignee:
Sumitomo Chemical Company, Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 227/40 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of producing a purified optically active 4-amino-3-(substituted phenyl)butanoic acid compound which is characterized by comprising a step of making a crude optically active 4-amino-3-(substituted phenyl)butanoic acid compound contact an organic acid in the presence of water.