Patents by Inventor Willard B. Parker

Willard B. Parker 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).

  • Safe entry for bird houses
    Patent number: 5228410
    Abstract: An accessory device for bird houses which allows entrance of smaller birds, while restraining larger ones. A wirelike material forming a cagelike body, with both ends open, thereby creating a passageway, with a first open end attached over and aligned with the entrance hole of a bird house and a second open end extending away from the bird house and forming an opening of a size which restricts larger birds.
    Type: Grant
    Filed: September 18, 1991
    Date of Patent: July 20, 1993
    Inventor: Willard B. Parker