Patents by Inventor Hans Stolwijk

Hans Stolwijk 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).

  • Clematis plant named ‘Stolwijk Gold’
    Patent number: PP18648
    Abstract: A new and distinct cultivar of Clematis plant named ‘Stolwijk Gold’, characterized by its upright and vining plant habit; uniquely yellow green-colored foliage; freely flowering habit; and violet blue-colored flowers.
    Type: Grant
    Filed: October 19, 2006
    Date of Patent: March 25, 2008
    Assignees: Q.C. Stolwijk + Co. B.V., Rijnbeek + Son B.V.
    Inventor: Hans Stolwijk