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).
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Patent number: 8166919Abstract: 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: GrantFiled: March 7, 2011Date of Patent: May 1, 2012Inventors: Alan J. Cook, Kristin William Grube, Thomas Edward Devlin, Jeff Reed Greason, Karl Thatcher Ulrich, Nathan Thatcher Ulrich, Chi Lam Yau
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Patent number: 8166918Abstract: 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: GrantFiled: March 7, 2011Date of Patent: May 1, 2012Assignee: Lucky Litter LLCInventors: Alan J. Cook, Kristin William Grube, Thomas Edward Devlin, Jeff Reed Greason, Karl Thatcher Ulrich, Nathan Thatcher Ulrich, Chi Lam Yau
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Patent number: 8166920Abstract: 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: GrantFiled: March 7, 2011Date of Patent: May 1, 2012Assignee: Lucky Litter LLCInventors: Alan J. Cook, Kristin William Grube, Thomas Edward Devlin, Jeff Reed Greason, Karl Thatcher Ulrich, Nathan Thatcher Ulrich, Chi Lam Yau
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Patent number: 8161908Abstract: 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: GrantFiled: May 24, 2010Date of Patent: April 24, 2012Assignee: Lucky Litter LLCInventors: Alan J. Cook, Kristin William Grube, Thomas Edward Devlin, Jeff Reed Greason, Karl Thatcher Ulrich, Nathan Thatcher Ulrich, Chi Lam Yau
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Patent number: 8028659Abstract: 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: GrantFiled: February 9, 2011Date of Patent: October 4, 2011Assignee: Lucky Litter LLCInventors: Alan J. Cook, Kristin William Grube, Thomas Edward Devlin, Jeff Reed Greason, Karl Thatcher Ulrich, Nathan Thatcher Ulrich, Chi Lam Yau
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Publication number: 20110155071Abstract: 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: ApplicationFiled: March 7, 2011Publication date: June 30, 2011Applicant: Lucky Litter LLCInventors: Alan Jay Cook, Kristin William Grube, Thomas Edward Devlin, Jeff Reed Greason, Karl Thatcher Ulrich, Nathan Thatcher Ulrich, Chi Lam Yau
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Publication number: 20110155072Abstract: 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: ApplicationFiled: March 7, 2011Publication date: June 30, 2011Applicant: Lucky Litter LLCInventors: Alan Jay Cook, Kristin William Grube, Thomas Edward Devlin, Jeff Reed Greason, Karl Thatcher Ulrich, Nathan Thatcher Ulrich, Chi Lam Yau
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Publication number: 20110155070Abstract: 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: ApplicationFiled: March 7, 2011Publication date: June 30, 2011Applicant: Lucky Litter LLCInventors: Alan Jay Cook, Kristin William Grube, Thomas Edward Devlin, Jeff Reed Greason, Karl Thatcher Ulrich, Nathan Thatcher Ulrich, Chi Lam Yau
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Publication number: 20110126773Abstract: 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: ApplicationFiled: February 9, 2011Publication date: June 2, 2011Applicant: Lucky Litter LLCInventors: Alan Jay Cook, Kristin William Grube, Thomas Edward Devlin, Jeff Reed Greason, Karl Thatcher Ulrich, Nathan Thatcher Ulrich, Chi Lam Yau
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Publication number: 20100313818Abstract: 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: ApplicationFiled: May 24, 2010Publication date: December 16, 2010Applicant: Lucky Litter LLCInventors: Alan Jay Cook, Kristin William Grube, Thomas Edward Devlin, Jeff Reed Greason, Kart Thatcher Ulrich, Nathan Thatcher Ulrich, Chi Lam Yau
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Patent number: 7762213Abstract: 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: GrantFiled: September 30, 2004Date of Patent: July 27, 2010Assignee: Lucky Litter LLCInventors: Alan Jay Cook, Kristin William Grube, Thomas Edward Devlin, Jeff Reed Greason, Karl Thatcher Ulrich, Nathan Thatcher Ulrich, Chi Lam Yau