Patents by Inventor Sheldon J. Segal

Sheldon J. Segal 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).

  • Beta-hCG preparation and method
    Patent number: 4271069
    Abstract: Method of purifying the beta sub-unit of chorionic gondotropin which includes contacting a preparation of the beta sub-unit of chorionic gonadotropin with an insolubilized anti alpha sub-unit of chorionic gondotropin serum and the highly purified beta sub-unit of chorionic gonadotropin obtained by this method.
    Type: Grant
    Filed: September 26, 1978
    Date of Patent: June 2, 1981
    Assignee: Population Council, Inc.
    Inventors: Yun-Yen Tsong, Gursaran P. Talwar, Samuel Koide, Sheldon J. Segal