Patents by Inventor Arye Lev-Ran

Arye Lev-Ran 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).

  • Glucose tolerance factor and method of making same
    Patent number: 4985439
    Abstract: A glucose tolerance factor which reduces blood sugar in mammals and is derived from yeast. The glucose tolerance factor can be isolated from autolyzed brewer's yeast extract by sequential fractionation on Sephadex G-75, Biogel P-6, Biogel P-2, to give a purified glucose tolerance factor. By further purification, a substantially purified glucose tolerance factor is obtained which is a quinoline derivative with a molecular ion at 174 by mass spectrometry.
    Type: Grant
    Filed: February 14, 1990
    Date of Patent: January 15, 1991
    Assignee: Anheuser-Busch Companies, Inc.
    Inventors: David Hwang, Arye Lev-Ran, Ken Barseghian, deceased