Patents by Inventor John J. Hannick

John J. Hannick 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).

  • Slide plate adjustable orifice
    Patent number: 5160119
    Abstract: An adjustable orifice comprising two half plates movable with respect to one another with adjusting holes for positioning the plates and flanges for holding the half plates in position.
    Type: Grant
    Filed: October 18, 1991
    Date of Patent: November 3, 1992
    Inventors: Robert J. Lemire, John J. Hannick