Patents by Inventor Steven DuFresne

Steven DuFresne 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).

  • ADJUSTABLE BACKREST
    Publication number: 20170087038
    Abstract: The disclosed adjustable backrest provides a plurality of generally horizontal straps arranged from the top to the bottom of the rigid back shell to provide anterior to posterior support and comfort for a patient. Generally speaking, the generally horizontal straps provide variably adjustable tension straps that allow for precise positioning of the patient to reduce or remove pressure points from the patient's thoracic to sacrum region.
    Type: Application
    Filed: December 13, 2016
    Publication date: March 30, 2017
    Inventor: Steven DuFresne
  • Wheelchair having unitized chassis
    Publication number: 20070084648
    Abstract: Enhanced stability of a wheelchair having a lift mechanism is provided, through utilization of a support apparatus including a unitized chassis for operatively connecting a seat and wheels of the wheelchair. A tilt sensor and controller preclude operation of the wheelchair with the seat in raised position while the wheelchair is resting on or traversing an uneven or sloping surface.
    Type: Application
    Filed: October 14, 2005
    Publication date: April 19, 2007
    Applicant: MobiLife
    Inventors: Steven DuFresne, Christopher Keidl
  • Wheelchair cushion
    Patent number: D759992
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: June 28, 2016
    Assignee: The Comfort Companies, Inc.
    Inventor: Steven Dufresne
  • Wheelchair back
    Patent number: D770945
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: November 8, 2016
    Assignee: The Comfort Companies, Inc.
    Inventor: Steven Dufresne