Patents by Inventor Hanny K. Berger

Hanny K. Berger 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 methyl-4-(dimethylamino)-3,5-dimethoxybenzoate
    Patent number: 4908470
    Abstract: Methyl 4-dimethylamino-3,5-dimethoxybenzoate, an intermediate in the preparation of the antibacterially active aditoprim, is obtained from 4-amino-3,5-dibromobenzoic acid by replacement of the bromine atoms by methoxy groups and subsequent methylation.
    Type: Grant
    Filed: November 30, 1988
    Date of Patent: March 13, 1990
    Assignee: Hoffman-La Roche Inc.
    Inventors: Alfredo Guerrato, Martin Karpf, Hanny K. Berger, Ivan Kompis, Markus Schlageter