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, 1979
Filed:
Feb. 09, 1978
Applicant:
Inventors:
Niklaus Buhler, Rheinfelden, CH;
Hans Bosshard, Basel, CH;
Assignee:
Ciba-Geigy Corporation, Ardsley, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
2603305 ; 2603 / ; 2603 / ; 26032634 ; 544 54 ; 544 58 ; 544 96 ; 544146 ; 544333 ; 544376 ; 548300 ; 546202 ;
Abstract
Novel halogeno-benzothiophenecarboxylic acids and a novel process for their preparation by reacting substituted or unsubstituted thiophenols with dihalogenomaleic anhydrides or derivatives thereof are described. The novel halogeno-benzothiophenecarboxylic acids are valuable intermediates for the preparation of pharmaceutical active compounds having an antiallergic action.
Buhler, Niklaus. (1979). 3-oxobenzothiophenyl-idenyl, halo-acetic acids (U.S. Patent No. 4154739). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4154739
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile