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. 08, 2007
Filed:
May. 18, 2004
Jufang Barkalow, Deerfield, IL (US);
Steven A. Chamberlin, Waukegan, IL (US);
Arthur J. Cooper, Lake Villa, IL (US);
Azad Hossain, Lindenhurst, IL (US);
John J. Hufnagel, Lake Villa, IL (US);
Denton Langridge, Wildwood, IL (US);
Jufang Barkalow, Deerfield, IL (US);
Steven A. Chamberlin, Waukegan, IL (US);
Arthur J. Cooper, Lake Villa, IL (US);
Azad Hossain, Lindenhurst, IL (US);
John J. Hufnagel, Lake Villa, IL (US);
Denton Langridge, Wildwood, IL (US);
Abbott Laboratories, Abbott Park, IL (US);
Abstract
This invention discloses a novel method for the conversion of carboxylic acids to carbothioic acids and application of the method to the preparation of androstane carbothiolates, such as fluticasone propionate, which avoids column chromatography.