Patents by Inventor Sandor Harmath

Sandor Harmath 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).

  • Purified appetite-regulating substances of biological orgin, their antibodies, immunocomplexes of the appetite--regulating substances formed with the antibodies and processes for preparing same
    Patent number: 4859766
    Abstract: The selective appetite-regulating substances satietin and satietin-D had up to the present been prepared from human or animal blood serum or plasma by ultrafiltration, gel chromatography, treatment with trichloroacetic acid, affinity chromatography and optionally treatment with a proteolytic enzyme.According to the invention, satietin and satietin-D are obtained in a purified form by using immunoabsorption. Being glycoproteins, both satietin and satietin-D form antibodies (antisatietin and antisatietin-D, respectively) in the living organism and can be isolated from the blood and bound to a gel column. For the preparation of satietin and satietin-D, respectively, the human or animal blood plasma or serum is subjected to ultrafiltration and the ultrafiltrate, containing in addition to satietin and satietin-D other constituents with a molecular weight below 50000 daltons, is contacted with the gel column.
    Type: Grant
    Filed: December 17, 1987
    Date of Patent: August 22, 1989
    Assignee: Richter Gedeon Vegyeszeti
    Inventors: Jozsef Knoll, Sandor Harmath, Janos Nagy, Berta Knoll