Patents by Inventor Patrick Grossman

Patrick Grossman 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: 20260053684
    Abstract: A patient transport apparatus for transporting a patient. A seat section is pivotably coupled to a support structure about a seat axis. A front wheel is operatively attached to a front strut of the support structure, and a carrier is arranged for movement relative to the support. The carrier includes a shaft defining a wheel axis, a rear wheel supported for rotation about the wheel axis, a track having a belt, and a hub supporting the shaft and the track for concurrent pivoting movement about a hub axis defined by a upright of the support structure. The hub axis extends through a plane intersecting the seat axis, fixed relative to the upright, and defining opposing first and second sides. Movement of the carrier from a chair configuration to a stair configuration simultaneously deploys the track and moves the wheel axis from the first side to the second side.
    Type: Application
    Filed: November 3, 2025
    Publication date: February 26, 2026
    Applicant: Stryker Corporation
    Inventors: Nathan W. Matheny, Daniel V. Brosnan, Melvin Gottschalk, JR., Cory P. Herbst, Brandon David Naber, Kelly Sandmeyer, Scott Zufall, Trey Thomas Pfeiffer, Patrick Grossman, Tyler Wright
  • Patent number: 12478524
    Abstract: A patient transport apparatus for transporting a patient. A seat section is pivotably coupled to a support structure about a seat axis. A front wheel is operatively attached to a front strut of the support structure, and a carrier is arranged for movement relative to the support. The carrier includes a shaft defining a wheel axis, a rear wheel supported for rotation about the wheel axis, a track having a belt, and a hub supporting the shaft and the track for concurrent pivoting movement about a hub axis defined by a upright of the support structure. The hub axis extends through a plane intersecting the seat axis, fixed relative to the upright, and defining opposing first and second sides. Movement of the carrier from a chair configuration to a stair configuration simultaneously deploys the track and moves the wheel axis from the first side to the second side.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: November 25, 2025
    Assignee: Stryker Corporation
    Inventors: Nathan W. Matheny, Daniel V. Brosnan, Melvin Gottschalk, Jr., Cory P. Herbst, Brandon David Naber, Kelly Sandmeyer, Scott Zufall, Trey Thomas Pfeiffer, Patrick Grossman, Tyler Wright
  • Publication number: 20250332043
    Abstract: A patient transport apparatus including a support structure movable between a chair configuration for traversing floor surfaces and a stowed configuration for storage. A seat section is pivotably coupled to the support structure. A caster assembly includes a pin coupled to the support structure and defining a swivel axis, a caster frame arranged to pivot about the swivel axis between a plurality of caster orientations, a wheel coupled to the caster frame and arranged for engagement with the floor in the chair configuration, and a biasing mechanism interposed between the caster frame and the pin. The biasing mechanism urges the caster frame toward a stowed caster orientation in response to disengagement between the wheel and floor surfaces occurring as the support structure moves from the chair configuration to the stowed configuration.
    Type: Application
    Filed: July 9, 2025
    Publication date: October 30, 2025
    Applicant: Stryker Corporation
    Inventors: Trey Thomas Pfeiffer, Nathan W. Matheny, Patrick Grossman, Adam Kammers
  • Patent number: 12370101
    Abstract: A patient transport apparatus including a support structure movable between a chair configuration for traversing floor surfaces and a stowed configuration for storage. A seat section is pivotably coupled to the support structure. A caster assembly includes a pin coupled to the support structure and defining a swivel axis, a caster frame arranged to pivot about the swivel axis between a plurality of caster orientations, a wheel coupled to the caster frame and arranged for engagement with the floor in the chair configuration, and a biasing mechanism interposed between the caster frame and the pin. The biasing mechanism urges the caster frame toward a stowed caster orientation in response to disengagement between the wheel and floor surfaces occurring as the support structure moves from the chair configuration to the stowed configuration.
    Type: Grant
    Filed: May 6, 2024
    Date of Patent: July 29, 2025
    Assignee: Stryker Corporation
    Inventors: Trey Thomas Pfeiffer, Nathan W. Matheny, Patrick Grossman, Adam Kammers
  • Publication number: 20240285452
    Abstract: A patient transport apparatus including a support structure movable between a chair configuration for traversing floor surfaces and a stowed configuration for storage. A seat section is pivotably coupled to the support structure. A caster assembly includes a pin coupled to the support structure and defining a swivel axis, a caster frame arranged to pivot about the swivel axis between a plurality of caster orientations, a wheel coupled to the caster frame and arranged for engagement with the floor in the chair configuration, and a biasing mechanism interposed between the caster frame and the pin. The biasing mechanism urges the caster frame toward a stowed caster orientation in response to disengagement between the wheel and floor surfaces occurring as the support structure moves from the chair configuration to the stowed configuration.
    Type: Application
    Filed: May 6, 2024
    Publication date: August 29, 2024
    Applicant: Stryker Corporation
    Inventors: Trey Thomas Pfeiffer, Nathan W. Matheny, Patrick Grossman, Adam Kammers
  • Patent number: 12005009
    Abstract: A patient transport apparatus including a support structure movable between a chair configuration for traversing floor surfaces and a stowed configuration for storage. A seat section is pivotably coupled to the support structure. A caster assembly includes a pin coupled to the support structure and defining a swivel axis, a caster frame arranged to pivot about the swivel axis between a plurality of caster orientations, a wheel coupled to the caster frame and arranged for engagement with the floor in the chair configuration, and a biasing mechanism interposed between the caster frame and the pin. The biasing mechanism urges the caster frame toward a stowed caster orientation in response to disengagement between the wheel and floor surfaces occurring as the support structure moves from the chair configuration to the stowed configuration.
    Type: Grant
    Filed: May 27, 2021
    Date of Patent: June 11, 2024
    Assignee: Stryker Corporation
    Inventors: Trey Thomas Pfeiffer, Nathan W. Matheny, Patrick Grossman, Adam Kammers
  • Publication number: 20230201053
    Abstract: A patient transport apparatus including a support structure movable between a chair configuration for traversing floor surfaces and a stowed configuration for storage. A seat section is pivotably coupled to the support structure. A caster assembly includes a pin coupled to the support structure and defining a swivel axis, a caster frame arranged to pivot about the swivel axis between a plurality of caster orientations, a wheel coupled to the caster frame and arranged for engagement with the floor in the chair configuration, and biasing mechanism interposed between the caster frame and the pin. The biasing mechanism urges the caster frame toward a stowed aster orientation in response to disengagement between the wheel and floor surfaces occurring as the support structure moves from the chair configuration to the stowed configuration.
    Type: Application
    Filed: May 27, 2021
    Publication date: June 29, 2023
    Applicant: Stryker Corporation
    Inventors: Trey Thomas Pfeiffer, Nathan W. Matheny, Patrick Grossman, Adam Kammers
  • Publication number: 20230046297
    Abstract: A patient transport apparatus for transporting a patient. A seat section is pivotably coupled to a support structure about a seat axis. A front wheel is operatively attached to a front strut of the support structure, and a carrier is arranged for movement relative to the support. The carrier includes a shaft defining a wheel axis, a rear wheel supported for rotation about the wheel axis, a track having a belt, and a hub supporting the shaft and the track for concurrent pivoting movement about a hub axis defined by a upright of the support structure. The hub axis extends through a plane intersecting the seat axis, fixed relative to the upright, and defining opposing first and second sides. Movement of the carrier from a chair configuration to a stair configuration simultaneously deploys the track and moves the wheel axis from the first side to the second side.
    Type: Application
    Filed: December 23, 2020
    Publication date: February 16, 2023
    Applicant: Stryker Corporation
    Inventors: Nathan W. Matheny, Daniel V. Brosnan, Melvin Gottschalk, Cory P. Herbst, Brandon David Naber, Kelly Sandmeyer, Scott Zufall, Trey Thomas Pfeiffer, Patrick Grossman, Tyler Wright
  • Publication number: 20060016287
    Abstract: A shifter for controlling a transmission of a motor vehicle includes a base structure and a shift lever that is movably mounted to the base structure for movement between a plurality of control positions. At least one of the control positions comprises a NEUTRAL position. The shifter further includes a shift gate having a plurality of notches corresponding to the control positions. The shift gate is positioned on a selected one of the base and the shift lever. The shifter further includes a movable pawl member selectively engaging the notches of the shift gate to restrict movement of the shift lever relative to the base structure. The pawl member is biased into engagement with the shift gate. A movable retaining member selectively engages the shift gate to retain the shift lever in the NEUTRAL position wherein the retaining member is biased out of engagement with the shift gate.
    Type: Application
    Filed: May 2, 2005
    Publication date: January 26, 2006
    Inventors: Patrick Grossman, Robert De Jonge
  • Patent number: D1053078
    Type: Grant
    Filed: June 24, 2022
    Date of Patent: December 3, 2024
    Assignee: Stryker Corporation
    Inventors: Cory P. Herbst, Trey T. Pfeiffer, Nathan W. Matheny, Brian J. Tessmer, James R. Tumavich, Jr., Patrick Grossman
  • Patent number: D1056206
    Type: Grant
    Filed: December 23, 2021
    Date of Patent: December 31, 2024
    Assignee: Stryker Corporation
    Inventors: Cory P. Herbst, Patrick Grossman