Patents by Inventor Wijchert H. Spa

Wijchert H. Spa 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).

  • Conductive ink or paint
    Patent number: 6537359
    Abstract: The invention relates to a deformable, electrically conductive ink or paint. When the ink or paint is applied to a substrate in the form of a particular pattern, this pattern will also be electrically conductive after deformation. The invention also relates to the use of a deformable, electrically conductive ink or paint for providing an electromagnetic shielding layer or a functionally conductive path.
    Type: Grant
    Filed: October 18, 2000
    Date of Patent: March 25, 2003
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventor: Wijchert H. Spa