Patents by Inventor Wouter Ruigrok

Wouter Ruigrok 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).

  • Eryngium plant named `Sapphire Blue`
    Patent number: PP11088
    Abstract: A new and distinct cultivar of plant named `Sapphire Blue`, characterized by the combined features of large, intense lavender blue teasel-like flowers with a collar of spiny bracts, flowering commencing in June and continuing into August, and stems similar in color to the flower.
    Type: Grant
    Filed: August 26, 1997
    Date of Patent: October 12, 1999
    Assignee: Blooms of Bressingham, Ltd.
    Inventor: Wouter Ruigrok