Patents by Inventor Aart de Wit

Aart de Wit 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).

  • Barberry plant
    Patent number: PP6269
    Abstract: The present invention relates to a new and distinct variety of barberry, which was discovered by me as a sport in a block of Berberis on my cultivated property at Grand Rapids, Mich. More particularly, the present invention relates to a novel cultivar of Berberis thunbergii atropurpurea having unusual and distinctive foliage coloration, known as "Crimson Velvet", a plant of New Plants.
    Type: Grant
    Filed: August 8, 1986
    Date of Patent: September 6, 1988
    Assignee: New Plants
    Inventor: Aart de Wit