Patents by Inventor Siegfried A. Pregitzer

Siegfried A. Pregitzer 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).

  • Photoreactive coating compositions based on urethane modified acrylates
    Patent number: 4227980
    Abstract: Novel photoreactive coating compositions based on urethane modified acrylates which may be employed alone or in mixtures with other photoreactive acrylates are disclosed.
    Type: Grant
    Filed: September 13, 1978
    Date of Patent: October 14, 1980
    Assignee: Whittaker Corporation
    Inventors: Siegfried A. Pregitzer, Jay K. Laufer, John J. Marino, James W. Hancock