Patents by Inventor Kay Ryugo

Kay Ryugo 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).

  • Pear tree--`Elliot`
    Patent number: PP6452
    Abstract: A new and distinct variety of pear tree primarily characterized by its tolerance to the fire-blight organism. (Erwinia amylovora), and further characterized by a blooming habit concurrent with `Bartlett`; skin with firm and buttery texture, and fruit with a flavor which is excellent to good. The keeping quality of the fruit is good to excellent.
    Type: Grant
    Filed: March 2, 1987
    Date of Patent: December 6, 1988
    Assignee: Regents of the University of California
    Inventor: Kay Ryugo