Patents by Inventor Harry F. Brust

Harry F. Brust 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 making phenoxyalkanoic acids
    Patent number: 4035416
    Abstract: Phenoxyalkanoic acids, e.g., 2,4-dichlorophenoxyacetic acid, are made by simultaneously adding equivalent amounts of haloalkanoic acid and alkali metal hydroxide to a hot mixture of about equimolar amounts of the appropriate phenol and the alkali metal salt of the phenol while distilling water from the reaction mixture as formed.
    Type: Grant
    Filed: November 2, 1972
    Date of Patent: July 12, 1977
    Assignee: The Dow Chemical Company
    Inventor: Harry F. Brust