Patents by Inventor Nathan Thatcher Ulrich

Nathan Thatcher Ulrich 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: 8166919
    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: Grant
    Filed: March 7, 2011
    Date of Patent: May 1, 2012
    Inventors: Alan J. Cook, Kristin William Grube, Thomas Edward Devlin, Jeff Reed Greason, Karl Thatcher Ulrich, Nathan Thatcher Ulrich, Chi Lam Yau
  • Patent number: 8166918
    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: Grant
    Filed: March 7, 2011
    Date of Patent: May 1, 2012
    Assignee: Lucky Litter LLC
    Inventors: Alan J. Cook, Kristin William Grube, Thomas Edward Devlin, Jeff Reed Greason, Karl Thatcher Ulrich, Nathan Thatcher Ulrich, Chi Lam Yau
  • Patent number: 8166920
    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: Grant
    Filed: March 7, 2011
    Date of Patent: May 1, 2012
    Assignee: Lucky Litter LLC
    Inventors: Alan J. Cook, Kristin William Grube, Thomas Edward Devlin, Jeff Reed Greason, Karl Thatcher Ulrich, Nathan Thatcher Ulrich, Chi Lam Yau
  • Patent number: 8161908
    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: Grant
    Filed: May 24, 2010
    Date of Patent: April 24, 2012
    Assignee: Lucky Litter LLC
    Inventors: Alan J. Cook, Kristin William Grube, Thomas Edward Devlin, Jeff Reed Greason, Karl Thatcher Ulrich, Nathan Thatcher Ulrich, Chi Lam Yau
  • Patent number: 8028659
    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: Grant
    Filed: February 9, 2011
    Date of Patent: October 4, 2011
    Assignee: Lucky Litter LLC
    Inventors: Alan J. Cook, Kristin William Grube, Thomas Edward Devlin, Jeff Reed Greason, Karl Thatcher Ulrich, Nathan Thatcher Ulrich, Chi Lam Yau
  • Publication number: 20110155071
    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: March 7, 2011
    Publication date: June 30, 2011
    Applicant: 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
  • Publication number: 20110155072
    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: March 7, 2011
    Publication date: June 30, 2011
    Applicant: 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
  • Publication number: 20110155070
    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: March 7, 2011
    Publication date: June 30, 2011
    Applicant: 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
  • Publication number: 20110126773
    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: February 9, 2011
    Publication date: June 2, 2011
    Applicant: 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
  • 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
  • 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