Patents by Inventor Gregory J. David

Gregory J. David 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: 5474031
    Abstract: A hanger for preventing the removal of toys and chewable items by caged birds, including a sphere on the outside of the cage and the wire hanger holding items inside the cage. The sphere is large enough not to be pulled through the space between the cage bars, and the hanger supporting the toys or chewable items, is removably suspended from the sphere. The hanger will not allow the bird to pull these items further into the cage or remove the hanger allowing all items to drop into waste on the cage bottom.
    Type: Grant
    Filed: June 29, 1993
    Date of Patent: December 12, 1995
    Inventors: Patricia R. David, Gregory J. David