Patents by Inventor Cheryl Van Valkenburg

Cheryl Van Valkenburg 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).

  • Polyurethane block copolymer
    Patent number: 5368943
    Abstract: A silane-capped polyurethane block copolymer comprising at least one polyester block and at least one polyacrylate block is disclosed. The copolymer can be used in coatings, and is particularly useful as a primer coating, especially as a primer for non-porous surfaces to which adhesives will be applied.
    Type: Grant
    Filed: December 20, 1991
    Date of Patent: November 29, 1994
    Assignee: Adco Products, Inc.
    Inventors: Jamil Baghdachi, Cheryl Van Valkenburg