Patents by Inventor Edward A. Youngman

Edward A. Youngman 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).

  • Reducing the effect, in plants, of ice-promoting nuclei originating from certain bacteria
    Patent number: 4311517
    Abstract: Ice-promoting nuclei resulting from the presence of certain bacteria on cold-sensitive plants are eliminated by treating the plants with one or more of certain cationic quaternary ammonium surfactants.
    Type: Grant
    Filed: March 3, 1980
    Date of Patent: January 19, 1982
    Assignee: Shell Oil Company
    Inventors: Edward A. Youngman, Russell C. Schnell