Patents by Inventor William M. Marts

William M. Marts 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).

  • Cat litter separator
    Patent number: 5823138
    Abstract: A cat litter separator is provided including a housing with a top opening and an interior space. A pair of square containers are each situated at an elevation below the top opening of the housing. A chute is situated within the housing and below the top opening. The chute has at least one screen, whereby cat litter having clumps of fecal matter may be deposited within the top opening such that the cat litter sifts downwardly into one of the containers and the fecal matter is deposited in another one of the containers.
    Type: Grant
    Filed: December 17, 1997
    Date of Patent: October 20, 1998
    Inventor: William M. Marts