Patents by Inventor Steven Wolf

Steven Wolf 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: 4784082
    Abstract: A cat litter box system including a tray which may have inwardly canted edges and a waterproof bottom. Inserted in the tray is at least one orificed filter sheet, and preferably several, having some type of corner or edge lifting means. Also desirably provided is a filter protector comprising a mat having upward extending protrusions disposed in register with the filter sheet orifices to pass through the latter and protect the filter sheets from damage by the clawing of the cat through litter material which is deposited in the tray over the filter sheets and the filter protector, where the latter is also used. Deodorizing strips, capsules and/or filter protector tips may also be provided.
    Type: Grant
    Filed: November 20, 1986
    Date of Patent: November 15, 1988
    Inventor: Steven Wolfe