Patents by Inventor Max Lupfer

Max Lupfer 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: 12594824
    Abstract: A chassis assembly for an electric vehicle that can include a plurality of cross members having closed section cross sectional configurations that can be generally uniform between opposing flanges that secure the cross members to opposing side rails of a chassis. Such flanges can include asymmetrically arranged orifices that receive fasteners used to secure the cross members to the adjacent side rail. A first battery mounting assembly can extend above a space between the side rails and secure a plurality of batteries in a vertical arrangement. The first battery mounting assembly can accommodate a degree of float between the first and second side rails in a manner that can protect the integrity of the batteries. A second battery mounting assembly can be utilized for mounting other batteries in a manner that can enhance the ease with which those batteries can be removed from at least the chassis assembly.
    Type: Grant
    Filed: July 31, 2024
    Date of Patent: April 7, 2026
    Assignee: Workhorse Group Inc.
    Inventors: Hadrian Rori, Dave Bjerke, Max Lupfer
  • Publication number: 20260070615
    Abstract: Land vehicles are disclosed. A land vehicle includes a frame structure, a plurality of wheels supported by the frame structure, and a body supported by the frame structure. The frame structure includes an operator cage that at least partially defines an operator cabin and a rear compartment positioned rearward of the operator cage in a longitudinal direction. The body includes a first sidewall arranged on one side of the vehicle and a second sidewall arranged on another side of the vehicle opposite the first sidewall.
    Type: Application
    Filed: September 10, 2024
    Publication date: March 12, 2026
    Inventors: Donald L. Wires, Max Lupfer, Ryan Doll
  • Patent number: 12570363
    Abstract: Land vehicles are disclosed. A land vehicle includes a frame structure, a plurality of wheels supported by the frame structure, and a body supported by the frame structure. The frame structure includes an operator cage that at least partially defines an operator cabin and a rear compartment positioned rearward of the operator cage in a longitudinal direction. The body includes a first sidewall arranged on one side of the vehicle and a second sidewall arranged on another side of the vehicle opposite the first sidewall.
    Type: Grant
    Filed: September 10, 2024
    Date of Patent: March 10, 2026
    Assignee: Workhorse Group Inc.
    Inventors: Donald L. Wires, Max Lupfer, Ryan Doll
  • Patent number: 12472807
    Abstract: Land vehicles are disclosed. A land vehicle includes a chassis extending in a longitudinal direction and a plurality of wheels supported by the chassis including a pair of front wheels and a pair of rear wheels arranged rearward of the pair of front wheels in the longitudinal direction. The chassis includes a power source cradle assembly supporting a plurality of power sources of the vehicle that is arranged between the pair of front wheels and the pair of rear wheels in the longitudinal direction.
    Type: Grant
    Filed: February 27, 2025
    Date of Patent: November 18, 2025
    Assignee: Workhorse Group Inc.
    Inventors: Donald L. Wires, Max Lupfer, Ryan Doll
  • Patent number: 12473030
    Abstract: Land vehicles are disclosed. A land vehicle includes a chassis extending in a longitudinal direction and a plurality of wheels supported by the chassis. The plurality of wheels include a pair of front wheels and a pair of rear wheels arranged rearward of the pair of front wheels in the longitudinal direction. The chassis includes multiple sections or segments that are spaced from one another in the longitudinal direction.
    Type: Grant
    Filed: February 27, 2025
    Date of Patent: November 18, 2025
    Assignee: Workhorse Group Inc.
    Inventors: Donald L. Wires, Max Lupfer, Ryan Doll
  • Patent number: 12473029
    Abstract: Land vehicles are disclosed. A land vehicle includes a chassis extending in a longitudinal direction, a plurality of wheels supported by the chassis including a pair of front wheels and a pair of rear wheels arranged rearward of the pair of front wheels in the longitudinal direction, a pair of front suspension assemblies each coupled to one of the pair of front wheels and the chassis to support the pair of front wheels for rotation relative to the chassis in use of the land vehicle, and a pair of rear suspension assemblies each coupled to one of the pair of rear wheels and the chassis to support the pair of rear wheels for rotation relative to the chassis in use of the land vehicle.
    Type: Grant
    Filed: February 27, 2025
    Date of Patent: November 18, 2025
    Assignee: Workhorse Group Inc.
    Inventors: Donald L. Wires, Max Lupfer, Ryan Doll
  • Patent number: 12466485
    Abstract: Land vehicles are disclosed. A land vehicle includes a chassis, a plurality of wheels, a first powertrain unit, and a second powertrain unit. The chassis includes a front suspension subframe assembly and a rear suspension subframe assembly spaced from the front suspension subframe assembly in a longitudinal direction. The plurality of wheels includes a pair of front wheels supported by the front suspension subframe assembly and a pair of rear wheels supported by the rear suspension subframe assembly. The first powertrain unit is supported by the front suspension subframe assembly and coupled to the pair of front wheels. The second powertrain unit is supported by the rear suspension subframe assembly and coupled to the pair of rear wheels.
    Type: Grant
    Filed: February 27, 2025
    Date of Patent: November 11, 2025
    Assignee: Workhorse Group Inc.
    Inventors: Donald L. Wires, Max Lupfer, Ryan Doll
  • Publication number: 20250042235
    Abstract: A chassis assembly for an electric vehicle that can include a plurality of cross members having closed section cross sectional configurations that can be generally uniform between opposing flanges that secure the cross members to opposing side rails of a chassis. Such flanges can include asymmetrically arranged orifices that receive fasteners used to secure the cross members to the adjacent side rail. A first battery mounting assembly can extend above a space between the side rails and secure a plurality of batteries in a vertical arrangement. The first battery mounting assembly can accommodate a degree of float between the first and second side rails in a manner that can protect the integrity of the batteries. A second battery mounting assembly can be utilized for mounting other batteries in a manner that can enhance the ease with which those batteries can be removed from at least the chassis assembly.
    Type: Application
    Filed: July 31, 2024
    Publication date: February 6, 2025
    Inventors: Hadrian Rori, Dave Bjerke, Max Lupfer