Patents
Patents for A47C 3 - Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats (12,714)
10/1991
10/03/1991WO1991014385A1 Seat mechanism
10/02/1991EP0448794A1 Chair and method of production
10/01/1991USRE33704 Rocker-recliner chair
10/01/1991US5052753 Adjustable sitting device
09/1991
09/25/1991EP0448088A1 A cylinder piston device
09/25/1991EP0447674A1 Length adjustable gasspring
09/24/1991US5050933 Stacking chair with collapsible arms
09/24/1991US5050931 Controlled deflection front lip for seating
09/18/1991CN2084753U Folding stool with adjustable height
09/17/1991CA1289051C Seating furniture
09/10/1991US5046782 Rotatable sun chair
09/10/1991US5046781 Arrangement for height adjustment
09/10/1991US5046780 Suspension mechanism for connecting chair backs and seats to a pedestal
09/05/1991WO1991013314A1 Chair height adjustment mechanism
09/03/1991US5044691 Monolithic armchair made of injected plastic material, stackable with small pitch
09/03/1991US5044587 Ergonomic seat
08/1991
08/28/1991EP0443226A1 Safety chair columns
08/27/1991US5042876 Controller for seating and the like
08/21/1991EP0442832A1 Wooden support structure
08/21/1991EP0442241A1 Nesting furniture
08/21/1991CN2082995U Stacked revolving chair
08/20/1991US5040847 Chair and method for constructing a chair
08/20/1991US5040846 Rocker chair
08/15/1991CA2010952A1 Chair height adjustment mechanism
08/14/1991EP0441267A1 A support column
08/14/1991DE4004311A1 Overlay cushion for seat - consists of two flexible superimposed layers joined along lines or points and inflated to form air compartments
08/14/1991CN2082560U Chair with vertically adjustable seat
08/13/1991US5039164 Chairs having swivel and rocker features
08/07/1991CN2082115U Seating furniture
08/06/1991US5037116 Foldable chair
07/1991
07/31/1991EP0439223A1 Structure for chairs, small armchairs and the like with means for completion in diversifiable versions
07/30/1991US5035466 Ergonomic chair
07/24/1991CA2034523A1 Structure for chairs, small armchairs and the like with means for completion in diversifiable versions
07/23/1991US5033791 Chair frame
07/23/1991CA1286589C Seat
07/17/1991CN2080783U Angle regulator
07/17/1991CN2080782U 豪华餐椅 Luxury dining chair
07/16/1991US5031869 Control assembly for chair height adjustment
07/11/1991WO1991010384A1 A convertible chair
07/11/1991CA2072867A1 Convertible chair
07/09/1991US5029940 Chair tilt and chair height control apparatus
07/09/1991US5029350 Cross-legged seating apparatus
07/03/1991EP0435297A1 Tilting control assembly for chair
07/03/1991EP0434897A1 Tilting control assembly for chair
07/03/1991EP0434729A1 Pneumatic spring
07/03/1991EP0413732A4 Reclining chair
07/03/1991CN1013019B Revolving stage
07/02/1991US5028037 Automatic lifting apparatus
07/02/1991CA1285468C Ergonomic chair
06/1991
06/27/1991WO1991009250A1 Chair height adjustment mechanism
06/26/1991CN2079461U Multifunctional swivel chair
06/26/1991CN2079460U Octafunctional healthy sofa
06/25/1991US5026117 Controller for seating and the like
06/21/1991CA2017208A1 Chair
06/18/1991US5024485 Front and back adjustable rocking seat support arrangement for seat having relatively adjustable sections
06/18/1991US5024484 Adjustable sitting device
06/18/1991US5024483 Swing rocker apparatus and furniture using same
06/18/1991CA1284942C Height adjustment apparatus
06/06/1991CA2004779A1 Chair
06/05/1991CN2078115U Fourpurpose stool
06/05/1991CN2078114U Multipurpose chair
06/04/1991US5020854 Folding chair constructed of sheet material
06/04/1991US5020752 Adjustable pedestal for tables and the like
06/04/1991CA2015353A1 Swivel seat, especially for vehicles
05/1991
05/29/1991CN1051663A Adjustable seating
05/28/1991US5018788 Foldable seat
05/28/1991US5018787 Chair seat tilt control
05/22/1991EP0256070B1 Chair for service to customer
05/21/1991CA1284292C Tilt mechanism, particularly for knee-tilt chair
05/15/1991EP0426743A1 Locking device for chair seats.
05/15/1991EP0277145B1 An adjustable sitting device
05/15/1991CN2076794U Patient bed and moving looking chair with back
05/15/1991CA2029354A1 Adjustable seating
05/14/1991US5015038 Ergonomic seat and back structure for a chair
05/14/1991US5014687 Mounting for vibrating motor
05/08/1991CN2076351U Chair with lift seat
05/07/1991US5013179 Box-shaped base consisting of two wedge-coupled shells
05/07/1991US5012996 Length variable and lockable positioning device
04/1991
04/30/1991US5011228 Collapsable/stackable article of furniture
04/25/1991DE4032398A1 Chair or recliner structure - is made in two parts movable by fluid pump arrangement with fluid pressure storage device and adjustment
04/24/1991EP0423828A1 A positioning device
04/24/1991CN2075474U Clasp rod type lifting folding chair
04/23/1991US5009466 Reclining chair
04/17/1991CN2075027U Hydraulic controlled swivel chair
04/17/1991CN2075023U Household multifunctional table and chair for studying
04/03/1991EP0420782A1 Multiple use diagonal anatomical armchair
04/03/1991EP0420219A1 A column unit
04/02/1991US5003653 Seat assembly
04/02/1991CA1282312C Rocking furniture with removably secured and adjustable cushions
03/1991
03/27/1991EP0419405A1 Seat-shell and use of this shell in a range of chair models
03/27/1991EP0419404A1 Chair, in particular office-chair
03/27/1991EP0419395A1 Structure for the formation of rows of seats and seat constructed with the same
03/27/1991EP0418731A1 Chair
03/27/1991CN2073698U Lifting stool
03/26/1991US5002337 Stackable and linkable chairs
03/26/1991CA1281988C Point synchronized adjustment device for office chairs
03/26/1991CA1281987C Chair seat tilt control
03/20/1991EP0417518A1 Chair, in particular office-chair
03/19/1991US5000514 Miniature rocking chair
03/19/1991US5000513 Rotary table