Patents by Inventor Wilhelmus J. F. A. Princen

Wilhelmus J. F. A. Princen 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).

  • Apple tree named `Red Jonaprince`
    Patent number: PP11112
    Abstract: Red Jonaprince is a mutation of Jonagold having a bright to dark red colored, non-greasy and very early ripening apple. The fruit flesh is firmer and has a little more sugar and is a little more sour than that of Jonagold.
    Type: Grant
    Filed: August 19, 1997
    Date of Patent: November 2, 1999
    Assignee: Wilton Weert B.V.
    Inventors: Wilhelmus J. F. A. Princen, Antonius F. M. J. Princen