| 
            
              US2181722A
              (en)
            
            
            
           | 
          1937-05-29 | 
          1939-11-28 | 
          Deere & Co | 
          Caster wheel 
      | 
        
        
          | 
            
              US2490560A
              (en)
            
            
            
           | 
          1947-06-20 | 
          1949-12-06 | 
          Jr George R Urquhart | 
          Caster mounting and control means for landing wheels of aircraft 
        | 
        
        
          | 
            
              US2481948A
              (en)
            
            
            
           | 
          1948-02-20 | 
          1949-09-13 | 
          Pruitt George | 
          Tongue-supporting dolly 
        | 
        
        
          | 
            
              US2634986A
              (en)
            
            
            
           | 
          1950-01-20 | 
          1953-04-14 | 
          Ernest C Mcdaniel | 
          Front wheel dolly for trailers 
        | 
        
        
          | 
            
              US2770832A
              (en)
            
            
            
           | 
          1953-02-11 | 
          1956-11-20 | 
          Houdaille Industries Inc | 
          Swivel wheel damper 
        | 
        
        
          | 
            
              US3718942A
              (en)
            
            
            
           | 
          1970-08-14 | 
          1973-03-06 | 
          H Arenson | 
          Caster assembly with integral horn and pintle and method of making same 
        | 
        
        
          | 
            
              US3865427A
              (en)
            
            
            
           | 
          1973-05-16 | 
          1975-02-11 | 
          Harold Edward Delany | 
          Invalids aids 
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              US4025112A
              (en)
            
            
            
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          1975-12-15 | 
          1977-05-24 | 
          Hale Dean H | 
          Medical stools 
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              US4721321A
              (en)
            
            
            
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          1982-11-16 | 
          1988-01-26 | 
          Invacare Corporation | 
          Wheelchair with adjustable rear canes 
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          | 
            
              US4592570A
              (en)
            
            
            
           | 
          1983-10-27 | 
          1986-06-03 | 
          Everest & Jennings | 
          Ultra light wheelchair 
        | 
        
        
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              JPH0337468Y2
              (en)
            
            
            
           | 
          1984-11-16 | 
          1991-08-08 | 
           | 
           | 
        
        
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              US4793022A
              (en)
            
            
            
           | 
          1986-03-04 | 
          1988-12-27 | 
          Stewart-Warner Corporation | 
          Tread protector for dual wheel caster 
        | 
        
        
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              USD315463S
              (en)
            
            
            
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          1988-03-21 | 
          1991-03-19 | 
          Temco Home Health Care Products, Inc. | 
          Tray 
        | 
        
        
          | 
            
              US4961610A
              (en)
            
            
            
           | 
          1989-08-21 | 
          1990-10-09 | 
          Midmark Corporation | 
          Clam shell armrest 
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              US5018788A
              (en)
            
            
            
           | 
          1989-12-08 | 
          1991-05-28 | 
          Tempress Incorporated | 
          Foldable seat 
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              US5176393A
              (en)
            
            
            
           | 
          1990-04-27 | 
          1993-01-05 | 
          Medical Composite Technology | 
          Modular wheelchair 
        | 
        
        
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              USD333737S
              (en)
            
            
            
           | 
          1990-06-19 | 
          1993-03-09 | 
          Adams Joe L | 
          Portable folding rocker seat 
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              US5160156A
              (en)
            
            
            
           | 
          1990-09-13 | 
          1992-11-03 | 
          Concentric Industries | 
          Wheelchair with coasting, braking and multi-speed features 
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              US5294172A
              (en)
            
            
            
           | 
          1991-09-12 | 
          1994-03-15 | 
          Dubus Susan E | 
          Child's food tray with see-through enclosed interactive activity chamber 
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              USD339315S
              (en)
            
            
            
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          1991-09-19 | 
          1993-09-14 | 
          Etac Ab | 
          Wheel chair 
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              USD337289S
              (en)
            
            
            
           | 
          1991-11-04 | 
          1993-07-13 | 
          Constantine David P | 
          Wheelchair 
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              USD341344S
              (en)
            
            
            
           | 
          1992-06-01 | 
          1993-11-16 | 
          Quickie Designs Inc. | 
          Wheelchair frame 
        | 
        
        
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              US5275466A
              (en)
            
            
            
           | 
          1992-09-01 | 
          1994-01-04 | 
          Rentchler Jr John W | 
          Portable armrest 
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              US5421692A
              (en)
            
            
            
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          1992-09-30 | 
          1995-06-06 | 
          Varrichio; Guy | 
          Apparatus for elevating a wheelchair 
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              US5366037A
              (en)
            
            
            
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          1992-11-23 | 
          1994-11-22 | 
          Invacare Corporation | 
          Powered wheelchair having drive motors integrated into driven wheels 
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              US5254007A
              (en)
            
            
            
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          1993-01-29 | 
          1993-10-19 | 
          Eagan Chris S | 
          Baby entertainment and learning apparatus for highchairs 
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              US5427398A
              (en)
            
            
            
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          1993-10-29 | 
          1995-06-27 | 
          Weybrecht; Steven L. | 
          All-terrain wheelchairs and apparatus therefor 
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              USD365786S
              (en)
            
            
            
           | 
          1995-03-08 | 
          1996-01-02 | 
          Invacare Corporation | 
          Sport wheelchair having a T-frame 
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              USD365787S
              (en)
            
            
            
           | 
          1995-03-08 | 
          1996-01-02 | 
          Invacare Corporation | 
          Sport wheelchair having a T-frame 
        | 
        
        
          | 
            
              USD365788S
              (en)
            
            
            
           | 
          1995-03-08 | 
          1996-01-02 | 
          Invacare Corporation | 
          Sport wheelchair having a T-frame 
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              USD380991S
              (en)
            
            
            
           | 
          1995-04-18 | 
          1997-07-15 | 
          Deming Micheal S | 
          All-terrain wheelchair 
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              USD383911S
              (en)
            
            
            
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          1995-05-09 | 
          1997-09-23 | 
          The First Years Inc. | 
          Booster seat 
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              USD401540S
              (en)
            
            
            
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          1996-09-12 | 
          1998-11-24 | 
          Honda Giken Kogyo Kabushiki Kaisha | 
          Motor-assisted wheelchair 
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          1996-09-25 | 
          1998-10-13 | 
          Tempress, Inc. | 
          Foldable seat having removable panels 
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              US6003891A
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          1996-11-12 | 
          1999-12-21 | 
          Invacare Corporation | 
          Tilt wheelchair with center of gravity compensation 
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              USD403280S
              (en)
            
            
            
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          1997-11-10 | 
          1998-12-29 | 
          Diestel Daniel G | 
          Tray for placement across armrests of a wheelchair 
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              USD468669S1
              (en)
            
            
            
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          1998-08-21 | 
          2003-01-14 | 
          Electric Mobility Corporation | 
          Personal mobility vehicle base 
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              US6015190A
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          1998-11-12 | 
          2000-01-18 | 
          Wend; Charles Albert | 
          Folding hunting seat 
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              US6161856A
              (en)
            
            
            
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          1998-11-13 | 
          2000-12-19 | 
          Invacare Corporation | 
          Wheelchair suspension system 
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              USD412141S
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          1998-11-13 | 
          1999-07-20 | 
          Sunrise Medical Hhg Inc. | 
          Extruded base frame with adjustable track system for a wheelchair 
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              USD414453S
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          1998-12-11 | 
          1999-09-28 | 
          Cheng-Che Tsai | 
          Wheel rim of a stroller 
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              AT3804U1
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          1999-05-27 | 
          2000-08-25 | 
          Tcg Unitech Ag | 
          
  SEATREST FOR A MOTOR VEHICLE
 
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              USD455376S1
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          1999-07-09 | 
          2002-04-09 | 
          Invacare Corporation | 
          Wheelchair 
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              US6615937B2
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          1999-07-30 | 
          2003-09-09 | 
          Invacare Corporation | 
          Motorized wheelchairs 
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              US6202773B1
              (en)
            
            
            
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          1999-07-30 | 
          2001-03-20 | 
          Invacare Corporation | 
          Motorized wheelchairs 
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              USD427949S
              (en)
            
            
            
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          1999-08-04 | 
          2000-07-11 | 
          Schlangen Phillip E | 
          Wheelchair with vertically adjustable seat 
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              EP2206640B1
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          1999-08-31 | 
          2012-06-06 | 
          Deltaglide, Inc. | 
          Power-assist vehicle 
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              AU753042B2
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          1999-10-12 | 
          2002-10-03 | 
          Invacare Corporation | 
          Wheelchair having speed and direction control touchpad 
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              US6352273B1
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          1999-10-29 | 
          2002-03-05 | 
          Sunrise Medical Hhg Inc. | 
          Seat mounting assembly 
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              USD433968S
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          2000-01-27 | 
          2000-11-21 | 
          Nick Mascari | 
          High performance wheelchair frame 
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          2001-08-16 | 
          Husted Royce H. | 
          Removable battery for powered chairs and the like 
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              USD431502S
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          2000-03-27 | 
          2000-10-03 | 
          Kurt Manufacturing Company | 
          Wheelchair with vertically adjustable seat 
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          2000-11-15 | 
          2002-05-29 | 
          Brose Fahrzeugteile | 
          
  vehicle seat
 
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          2001-04-03 | 
          2003-12-30 | 
          Fisher Dynamics Corporation | 
          Fold-flat seat hinge assembly 
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          2001-05-16 | 
          2003-07-15 | 
          Link Treasure Limited | 
          Wheel for children's ride-on vehicle 
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          2001-06-15 | 
          2005-10-14 | 
          Faurecia Automotive Seating Ca | 
          
  IMPROVED VEHICLE SEAT JOINT MECHANISM
 
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          2001-10-10 | 
          2006-05-09 | 
          Invacare Corporation | 
          Wheelchair suspension 
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          2001-12-07 | 
          2002-09-10 | 
          Samuel Lin | 
          Wheelchair 
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          2002-04-30 | 
          2005-09-06 | 
          Pride Mobility Products Corporation | 
          Power wheelchair 
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          2002-06-05 | 
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          Sunrise Medical Hhg Inc. | 
          Adjustable wheel assembly 
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          2007-06-19 | 
          Sunrise Medical Hhg Inc. | 
          Adjustable wheel assembly 
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          Foldable booster car seat 
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          2005-02-04 | 
          Invacare Poirier Sa | 
          
  WHEELCHAIR COMPRISING A RECLINING BACKREST
 
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          2002-10-22 | 
          2004-06-15 | 
          Ulrich Alber Gmbh & Co. Kg | 
          Chassis for a wheel chair 
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          2004-02-17 | 
          Jun Miao He | 
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          Lear Corporation | 
          Pivotable seat assembly 
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          Pride Mobility Products Corporation | 
          Power wheelchair 
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          Kwang Yang Motor Co., Ltd. | 
          Electric mobility scooter 
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          Merits Health Products Co., Ltd. | 
          Electric wheelchair 
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          育豐有限公司 | 
          
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          2009-01-06 | 
          Milsco Manufacturing Company, A Unit Of Jason Incorporated | 
          Folding seat 
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          Motorized scooter wheelchair attachment device 
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          Invacare Corp. | 
          Base for an ambulatory device 
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          2008-09-16 | 
          Pride Mobility Products Corporation | 
          Mount for a wheelchair footrest 
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          2004-10-22 | 
          2006-06-27 | 
          Pride Mobility Products Corporation | 
          Powered vehicle 
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          Kwang Yang Motor Co | 
          Chassis mechanism of electric wheelchair 
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          2009-05-15 | 
          Degonda Rehab Sa | 
          Steering unit and wheelchair with at least one steering wheel unit. 
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          2005-04-21 | 
          2006-05-30 | 
          Sunrise Medical Ltd. | 
          Wheelchair base louvered end panel 
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          2005-06-20 | 
          2006-10-10 | 
          Wonderland Nurserygoods Co., Ltd. | 
          Stroller 
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          2005-08-31 | 
          2008-07-22 | 
          Invacare Corporation | 
          Method and apparatus for programming parameters of a power driven wheelchair for a plurality of drive settings 
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          2007-05-17 | 
          Wu's Tech Co., Ltd. | 
          Rapid-Assembly Battery Structure of Electric Scooter 
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          2008-08-19 | 
          Karma Medical Products Co., Ltd. | 
          Battery quick-release structure for an electric mobility scooter 
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          2006-02-23 | 
          2012-08-14 | 
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          Updating inserted text in a graphic file 
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          2006-03-03 | 
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          Lasher Sport, Llc | 
          Wheelchair 
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          2006-05-24 | 
          2007-02-20 | 
          Milsco Manufacturing Company | 
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          Vehicle seat 
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          Electric wheel chair 
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          2006-09-18 | 
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          Powered wheelchair having an articulating beam and related methods of use 
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          Collapsible seat 
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          2007-04-20 | 
          2009-02-03 | 
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          Power wheelchair 
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          2007-04-23 | 
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          Hoveround Corporation | 
          Personal mobility vehicle 
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          2007-06-14 | 
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          2007-09-12 | 
          2009-03-31 | 
          Pdg Inc. | 
          Wheelchair member 
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          2008-03-04 | 
          2011-01-11 | 
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          Apparatus for mounting a wheelchair arm pad 
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          2008-08-27 | 
          2013-04-09 | 
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          Caster wheel system 
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          2008-09-16 | 
          2009-10-20 | 
          Karman D Cusack | 
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          Vertical axle tube with spacer 
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          2009-02-03 | 
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          Wheelchair frame 
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          2009-02-03 | 
          2011-04-19 | 
          Michael Knopf | 
          Wheelchair caster strut 
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          2009-02-24 | 
          2010-08-26 | 
          Sung-Wang Yang | 
          Castor Having Reinforced Strength 
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          2009-04-14 | 
          2011-02-08 | 
          Hoveround Corporation | 
          Personal mobility vehicle 
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          2009-06-25 | 
          2010-08-31 | 
          Karma Medical Products, Co., Ltd. | 
          Wheelchair 
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          2009-09-28 | 
          2013-05-21 | 
          Gregor Horacek | 
          Wheelchair chassis 
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          2009-11-15 | 
          2014-05-20 | 
          Invacare Corp. | 
          Wheelchair 
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              USD653176S1
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          2009-11-15 | 
          2012-01-31 | 
          Invacare Corp. | 
          Wheelchair 
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          2009-11-15 | 
          2012-01-17 | 
          Invacare Corporation | 
          Wheelchair 
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          2010-03-16 | 
          2011-08-09 | 
          Invacare Corporation | 
          Frame 
        | 
        
        
          | 
            
              USD642500S1
              (en)
            
            
            
           | 
          2010-06-24 | 
          2011-08-02 | 
          Invacare Corp. | 
          Frame 
        | 
        
        
          | 
            
              USD654408S1
              (en)
            
            *
            
           | 
          2010-11-10 | 
          2012-02-21 | 
          Invacare Corp. | 
          Wheelchair frame 
        | 
        
        
          | 
            
              USD656070S1
              (en)
            
            
            
           | 
          2010-11-10 | 
          2012-03-20 | 
          Invacare Corporation | 
          Wheelchair shroud 
        | 
        
        
          | 
            
              USD642499S1
              (en)
            
            
            
           | 
          2010-06-24 | 
          2011-08-02 | 
          Invacare Corp. | 
          Wheelchair 
        | 
        
        
          | 
            
              USD735622S1
              (en)
            
            
            
           | 
          2011-04-04 | 
          2015-08-04 | 
          Invacare Corp. | 
          Armrest for a wheelchair 
        | 
        
        
          | 
            
              USD703107S1
              (en)
            
            
            
           | 
          2011-06-15 | 
          2014-04-22 | 
          R82 A/S | 
          Part for a wheel chair 
        | 
        
        
          | 
            
              USD731366S1
              (en)
            
            *
            
           | 
          2012-05-07 | 
          2015-06-09 | 
          Motion Composites Inc. | 
          Wheelchair cross-brace arm 
        | 
        
        
          | 
            
              USD722286S1
              (en)
            
            *
            
           | 
          2012-07-31 | 
          2015-02-10 | 
          Invacare International Sarl | 
          Wheelchair frame 
        | 
        
        
          | 
            
              CA147439S
              (en)
            
            
            
           | 
          2012-09-13 | 
          2013-04-24 | 
          Motion Composites Inc | 
          Wheelchair lateral frame 
      | 
        
        
          | 
            
              USD690190S1
              (en)
            
            
            
           | 
          2013-04-05 | 
          2013-09-24 | 
          Andrew H. McGrath | 
          Adjustable bracket 
        | 
        
        
          | 
            
              USD720666S1
              (en)
            
            *
            
           | 
          2013-11-19 | 
          2015-01-06 | 
          Armon Limited | 
          Handle for a buggy 
        |