Patents by Inventor John M. Relph

John M. Relph 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).

  • Publication number: 20260125872
    Abstract: A compact utility loader compact utility loader comprising a frame, a first track and a second track positioned on either side of the frame, and a pair of loader arms. The loader arms are configured to couple with an attachment via a hitch plate and a hitch pin. The compact utility loader is configured such that as the loader arms are raised and lowered, the hitch pin follows a path approximately defined by a curve ƒ(x)=4.641e0.34x. The value “x” represents a horizontal direction and the function ƒ(x) represents a vertical direction.
    Type: Application
    Filed: December 30, 2025
    Publication date: May 7, 2026
    Inventors: Jason CARLSON, John M. RELPH, Matthew SHOBE, Jeff WELSH
  • Patent number: 12516493
    Abstract: A work machine comprising a frame having laterally spaced sides and longitudinally spaced front and rear ends. The work machine additionally comprises at least one loader arms supported on the frame and shiftable relative to the frame between a raised position and a lowered position. The frame further comprises a pair of laterally spaced, longitudinally aligned lift eyes from which a full weight of the work machine can be suspended.
    Type: Grant
    Filed: July 26, 2023
    Date of Patent: January 6, 2026
    Assignee: Great Plains Manufacturing, Inc.
    Inventor: John M. Relph
  • Patent number: 12466496
    Abstract: A compact work machine, such as a compact track loader and/or a compact utility loader, which can carry and operate a wide range of attachments while maintaining a reduced operating footprint.
    Type: Grant
    Filed: December 8, 2023
    Date of Patent: November 11, 2025
    Assignee: Great Plains Manufacturing, Inc.
    Inventor: John M. Relph
  • Patent number: 12365401
    Abstract: A compact work machine, such as a compact track loader and/or a compact utility loader, which can carry and operate a wide range of attachments while maintaining a reduced operating footprint.
    Type: Grant
    Filed: December 8, 2023
    Date of Patent: July 22, 2025
    Assignee: Great Plains Manufacturing, Inc.
    Inventors: Cameron Roehlk, Jason Carlson, John M. Relph
  • Publication number: 20250207351
    Abstract: A compact utility loader compact utility loader comprising a frame, a first track and a second track positioned on either side of the frame, and a pair of loader arms. The loader arms are configured to couple with an attachment via a hitch plate and a hitch pin. The compact utility loader is configured such that as the loader arms are raised and lowered, the hitch pin follows a path approximately defined by a curve f(x)=4.641e0.34x. The value “x” represents a horizontal direction and the function f(x) represents a vertical direction.
    Type: Application
    Filed: March 12, 2025
    Publication date: June 26, 2025
    Inventors: Jason CARLSON, John M. RELPH, Matthew SHOBE, Jeff WELSH
  • Patent number: 12325971
    Abstract: A compact utility loader compact utility loader comprising a frame, a first track and a second track positioned on either side of the frame, and a pair of loader arms. The loader arms are configured to couple with an attachment via a hitch plate and a hitch pin. The compact utility loader is configured such that as the loader arms are raised and lowered, the hitch pin follows a path approximately defined by a curve ƒ(x)=4.641e0.34x. The value “x” represents a horizontal direction and the function f(x) represents a vertical direction.
    Type: Grant
    Filed: March 12, 2025
    Date of Patent: June 10, 2025
    Assignee: Great Plains Manufacturing, Inc.
    Inventors: Jason Carlson, John M. Relph, Matthew Shobe, Jeff Welsh
  • Publication number: 20250116083
    Abstract: A compact utility loader compact utility loader comprising a frame, a first track and a second track positioned on either side of the frame, and a pair of loader arms. The loader arms are configured to couple with an attachment via a hitch plate and a hitch pin. The compact utility loader is configured such that as the loader arms are raised and lowered, the hitch pin follows a path approximately defined by a curve f(x)=4.641e0.34x. The value “x” represents a horizontal direction and the function f(x) represents a vertical direction.
    Type: Application
    Filed: December 17, 2024
    Publication date: April 10, 2025
    Inventors: Jason Carlson, John M. Relph, Matthew Shobe, Jeff Welsh
  • Publication number: 20250092634
    Abstract: A compact utility loader comprising a frame, an engine, a pair of loader arms, and an attachment secured to ends of the loader arms. The compact utility loader additionally includes a first track or wheel and a second track or wheel positioned on either side of the frame. The compact utility loader additionally comprises a control interface including a graphic display configured to present operational information to an operator. The graphic display is configured to present a login screen prompting the operator for a passcode. The engine is prevented from being started until a valid passcode is entered via the control interface.
    Type: Application
    Filed: December 6, 2024
    Publication date: March 20, 2025
    Inventors: Jason Carlson, Toshihiko Takemura, John M. Relph, Matthew Shobe, Jeff Welsh
  • Publication number: 20250034831
    Abstract: A work machine comprising a frame having laterally spaced sides and longitudinally spaced front and rear ends. The work machine additionally comprises at least one loader arms supported on the frame and shiftable relative to the frame between a raised position and a lowered position. The frame further comprises a pair of laterally spaced, longitudinally aligned lift eyes from which a full weight of the work machine can be suspended.
    Type: Application
    Filed: July 26, 2023
    Publication date: January 30, 2025
    Inventor: John M. Relph
  • Publication number: 20250034838
    Abstract: A work machine comprising a frame with a pair of spaced apart side panels separated by a bottom panel. The work machine additionally comprises a drive assembly configured to propel the work machine, with the drive assembly comprising at least one drive motor. The work machine further comprises a motor mount assembly configured to support the drive motor with respect to the frame. The motor mount assembly comprises a mounting flange and a reinforcement element. Each of the mounting flange and the reinforcement element includes an opening configured to receive a portion of the drive motor. The reinforcement element is secured to an interior surface of one of the side panels of the frame. The mounting flange is secured to the reinforcement element. And the drive motor is secured to the mounting flange.
    Type: Application
    Filed: July 26, 2023
    Publication date: January 30, 2025
    Inventors: Jason Carlson, John M. Relph
  • Patent number: 12203236
    Abstract: A compact utility loader compact utility loader comprising a frame, a first track and a second track positioned on either side of the frame, and a pair of loader arms. The loader arms are configured to couple with an attachment via a hitch plate and a hitch pin. The compact utility loader is configured such that as the loader arms are raised and lowered, the hitch pin follows a path approximately defined by a curve ƒ(x)=4.641e0.34x. The value “x” represents a horizontal direction and the function ƒ(x) represents a vertical direction.
    Type: Grant
    Filed: September 13, 2024
    Date of Patent: January 21, 2025
    Assignee: Great Plains Manufacturing, Inc.
    Inventors: Jason Carlson, John M. Relph, Matthew Shobe, Jeff Welsh
  • Publication number: 20250003174
    Abstract: A compact utility loader compact utility loader comprising a frame, a first track and a second track positioned on either side of the frame, and a pair of loader arms. The loader arms are configured to couple with an attachment via a hitch plate and a hitch pin. The compact utility loader is configured such that as the loader arms are raised and lowered, the hitch pin follows a path approximately defined by a curve ƒ(x)=4.641e0.34x. The value “x” represents a horizontal direction and the function f(x) represents a vertical direction.
    Type: Application
    Filed: September 13, 2024
    Publication date: January 2, 2025
    Inventors: Jason Carlson, John M. Relph, Matthew Shobe, Jeff Welsh
  • Publication number: 20240352703
    Abstract: A compact utility loader compact utility loader comprising a frame, a first track and a second track positioned on either side of the frame, and a pair of loader arms. The loader arms are configured to couple with an attachment via a hitch plate and a hitch pin. The compact utility loader is configured such that as the loader arms are raised and lowered, the hitch pin follows a path approximately defined by a curve f(x)=4.641e0.34x. The value “x” represents a horizontal direction and the function f(x) represents a vertical direction.
    Type: Application
    Filed: June 28, 2024
    Publication date: October 24, 2024
    Inventors: Jason Carlson, John M. Relph, Matthew Shobe, Jeff Welsh
  • Patent number: 12123161
    Abstract: A compact utility loader compact utility loader comprising a frame, a first track and a second track positioned on either side of the frame, and a pair of loader arms. The loader arms are configured to couple with an attachment via a hitch plate and a hitch pin. The compact utility loader is configured such that as the loader arms are raised and lowered, the hitch pin follows a path approximately defined by a curve f(x)=4.641e0.34x. The value “x” represents a horizontal direction and the function f(x) represents a vertical direction.
    Type: Grant
    Filed: June 28, 2024
    Date of Patent: October 22, 2024
    Assignee: Great Plains Manufacturing, Inc.
    Inventors: Jason Carlson, John M. Relph, Matthew Shobe, Jeff Welsh
  • Patent number: 12104348
    Abstract: A compact utility loader compact utility loader comprising a frame, a first track and a second track positioned on either side of the frame, and a pair of loader arms. The loader arms are configured to couple with an attachment via a hitch plate and a hitch pin. The compact utility loader is configured such that as the loader arms are raised and lowered, the hitch pin follows a path approximately defined by a curve f(x)=4.641e0.34x. The value “x” represents a horizontal direction and the function f(x) represents a vertical direction.
    Type: Grant
    Filed: June 3, 2024
    Date of Patent: October 1, 2024
    Assignee: Great Plains Manufacturing, Inc.
    Inventors: Jason Carlson, John M. Relph, Matthew Shobe, Jeff Welsh
  • Publication number: 20240318401
    Abstract: A compact utility loader compact utility loader comprising a frame, a first track and a second track positioned on either side of the frame, and a pair of loader arms. The loader arms are configured to couple with an attachment via a hitch plate and a hitch pin. The compact utility loader is configured such that as the loader arms are raised and lowered, the hitch pin follows a path approximately defined by a curve ƒ(x)=4.641e0.34x The value “x” represents a horizontal direction and the function ƒ(x) represents a vertical direction.
    Type: Application
    Filed: June 3, 2024
    Publication date: September 26, 2024
    Inventors: Jason Carlson, John M. Relph, Matthew Shobe, Jeff Welsh
  • Publication number: 20240191463
    Abstract: A compact work machine, such as a compact track loader and/or a compact utility loader, which can carry and operate a wide range of attachments while maintaining a reduced operating footprint
    Type: Application
    Filed: December 8, 2023
    Publication date: June 13, 2024
    Inventors: John M. Relph, Toshihiko Takemura
  • Patent number: D1051767
    Type: Grant
    Filed: August 9, 2023
    Date of Patent: November 19, 2024
    Assignee: Great Plains Manufacturing, Inc.
    Inventors: John M. Relph, Jeff Welsh, Toshihiko Takemura
  • Patent number: D1061334
    Type: Grant
    Filed: August 9, 2023
    Date of Patent: February 11, 2025
    Assignee: Great Plains Manufacturing, Inc.
    Inventor: John M. Relph
  • Patent number: D1127007
    Type: Grant
    Filed: August 9, 2023
    Date of Patent: May 19, 2026
    Assignee: Great Plains Manufacturing, Inc.
    Inventor: John M. Relph