Patents by Inventor Michael J. Hennessy

Michael J. Hennessy 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).

  • Slip on tray for infant seat
    Patent number: 4453764
    Abstract: A tray for quick and easy installation on an infant seat comprising a tray having an opening therein forming a substantially U-shaped back bar that seats under stop means on the back support of the infant seat, the tray including an upwardly extending enclosure along the forward end and sides.
    Type: Grant
    Filed: July 23, 1981
    Date of Patent: June 12, 1984
    Inventor: Michael J. Hennessy
  • Fecal examining device
    Patent number: 4288316
    Abstract: A fecal examining device for use in the float separation of parasite eggs from feces with a screen composed of slots having an effective flow area of at least 40% of the surface area interposed in the liquid to allow ova to pass through the screen to a collecting slide.
    Type: Grant
    Filed: February 21, 1980
    Date of Patent: September 8, 1981
    Inventor: Michael J. Hennessy