Patents by Inventor Kristin WILLIAMS

Kristin WILLIAMS 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
    Publication number: 20100313818
    Abstract: A self-cleaning litter box (50) provides various advantages over the prior art. In particular, in one embodiment, the self-cleaning litter box (50) is configured to use a one piece litter cartridge (20) having a litter compartment (26) and a waste compartment 24. In another embodiment, the cartridge (20) is non-compartmentalized. In another embodiment, the system includes a rake assembly (56) configured with a drive assembly (58) that is protected from waste contamination. In accordance with the invention, the self-cleaning litter box (50) is configured to be used with all types of litter including crystal type litter.
    Type: Application
    Filed: May 24, 2010
    Publication date: December 16, 2010
    Applicant: Lucky Litter LLC
    Inventors: Alan Jay Cook, Kristin William Grube, Thomas Edward Devlin, Jeff Reed Greason, Kart Thatcher Ulrich, Nathan Thatcher Ulrich, Chi Lam Yau
  • Self-cleaning litter box
    Patent number: 7762213
    Abstract: A self-cleaning litter box is disclosed which provides various advantages over the prior art. In particular, in one embodiment, the self-cleaning litter box is configured to use a cartridge which may include a litter compartment and a waste compartment. In another embodiment, the cartridge may be non-compartmentalized. The cartridge may be disposable, thus eliminating the need for the user to clean the litter tray and handle heavy litter containers. In other embodiments, the system includes a rake assembly configured with a drive assembly that is protected from contamination. In accordance with another embodiment of the invention, the self-cleaning litter box is configured to be used with all types of litter including crystal type litter.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: July 27, 2010
    Assignee: Lucky Litter LLC
    Inventors: Alan Jay Cook, Kristin William Grube, Thomas Edward Devlin, Jeff Reed Greason, Karl Thatcher Ulrich, Nathan Thatcher Ulrich, Chi Lam Yau