Patents Assigned to Back Quality USA
  • Chair
    Patent number: D577229
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: September 23, 2008
    Assignee: Back Quality USA
    Inventor: Ernst Haaksma
  • Chair
    Patent number: D577230
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: September 23, 2008
    Assignee: Back Quality USA
    Inventor: Ernst Haaksma
  • Chair
    Patent number: D577933
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: October 7, 2008
    Assignee: Back Quality USA
    Inventor: Ernst Haaksma