Patents by Inventor Michael John Otterman

Michael John Otterman 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).

  • Self cleaning litter box
    Patent number: 8156895
    Abstract: Embodiments of the present invention generally relate to an automatic self cleaning litter box. In accordance with one embodiment, an apparatus is provided that includes a litter receptacle, a drive unit moveably coupled to the litter receptacle, and a sieve coupled to the drive unit such that the sieve possesses at least two degrees of freedom of movement relative to the litter receptacle and at least one degree of freedom of movement relative to the drive unit.
    Type: Grant
    Filed: September 14, 2005
    Date of Patent: April 17, 2012
    Assignee: United Pet Group, Inc.
    Inventors: Elif Caputa, Brooke Sloate, Michael John Otterman, Walter N. Yap