Patents by Inventor Raul R. Soikes

Raul R. Soikes 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 trichosanthin and method of preparation
    Patent number: 5077390
    Abstract: A substantially pure, hemagglutinin-free composition of trichosanthin, and a method of producing the composition is disclosed. A plant extract from Trichosanthes kirilowii is contacted with an anionic exchange resin to remove contaminating hemagglutinins, and trichosanthin is further purified from the extract by cation exchange chromatography to a purity of greater than 95%.
    Type: Grant
    Filed: September 7, 1989
    Date of Patent: December 31, 1991
    Assignee: Genelabs, Incorporated
    Inventors: Paul S. Wu, Susan B. Wade, Raul R. Soikes