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:
Oct. 28, 2014
Filed:
Jan. 27, 2012
Applicant:
Jordi Puig Serrano, Girona, ES;
Inventor:
Jordi Puig Serrano, Girona, ES;
Assignee:
Jordi Puig Serrano, Medichem, ZA;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07C 65/26 (2006.01); C07C 51/41 (2006.01); C07C 51/09 (2006.01); C07C 51/02 (2006.01); C07C 51/47 (2006.01); C07C 67/343 (2006.01);
U.S. Cl.
CPC ...
C07C 51/47 (2013.01); C07C 2103/74 (2013.01); C07C 51/412 (2013.01); C07C 51/09 (2013.01); C07C 51/02 (2013.01); C07C 67/343 (2013.01);
Abstract
The invention provides an improved process for the preparation of a benzonaphthalene derivative including, in particular, the manufacture of high purity adapalene. The invention further includes a method for assessing the color of adapalene by means of a quantitative colorimetric measurement of the produced adapalene.