Patents by Inventor Theo P. E. M. Verheggen

Theo P. E. M. Verheggen 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).

  • Patent number: 4816123
    Abstract: The basic concept of this invention involves the use of a wire or capillary tube as a template strand. The outside diameter and shape of the template strand correspond to the inside diameter and shape of a desired separation capillary. A detector may be incorporated by providing a pair of electrode wires, or the ends of a pair of optical fibers, and pressing them against opposite sides of the template. As plastic is then polymerized around this asssembly by casting or molding. The template is then removed, leaving a capillary channel with a sidewall incorporating the wire electrodes and optical fibers. Using this method, it is possible to form a single unit including a separation capillary, conductivity detector, and spectroscopy detector.
    Type: Grant
    Filed: July 6, 1987
    Date of Patent: March 28, 1989
    Assignee: The Perkin-Elmer Corporation
    Inventors: Kenneth Ogan, Frans M. Everaerts, Theo P. E. M. Verheggen