Patents by Inventor Brian A. Roden

Brian A. Roden has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for the production of 2-acetylbenzo [.beta.]thiophenes
    Patent number: 5169961
    Abstract: A process for the production in high yield of 2-acetylbenzo[.beta.]thiophene and its alkyl and alkoxy substituted derivatives by converting a 2-halobenzaldehyde to a 2,2'-dithiobis(benzaldehyde) intermediate and reacting that intermediate successively with 2,4-pentanedione and chloroacetone in the presence of base.
    Type: Grant
    Filed: November 22, 1991
    Date of Patent: December 8, 1992
    Assignee: Abbott Laboratories
    Inventors: Daniel A. Dickman, Bruce W. Horrom, Brian A. Roden, Sanjay R. Chemburkar