| USD289708S
              (en) | 1984-05-08 | 1987-05-12 | Oddvin Rykken | Adjustable chair | 
        
          | IL77730A
              (en)
            
            * | 1986-01-28 | 1989-12-15 | Univ Ramot | Chair system particularly useful for a dental office | 
        
          | GB8716041D0
              (en)
            
            * | 1987-07-08 | 1987-08-12 | Jenkins C | Adjustable chair | 
        
          | US4832407A
              (en)
            
            * | 1987-11-27 | 1989-05-23 | Hector Serber | Variable posture chair and method | 
        
          | MX170047B
              (es)
            
            * | 1988-08-04 | 1993-08-03 | Enrique Manuel Gonzalez Y Roja | Mejoras en banco giratorio que sostiene el peso del cuerpo y permite diversidad de movimientos con las piernas | 
        
          | US4943117A
              (en)
            
            * | 1989-07-24 | 1990-07-24 | Brown Shawn W | Body weight distribution support chair | 
        
          | USD328678S
              (en) | 1989-08-04 | 1992-08-18 | Gale Mary F | Seat | 
        
          | WO1991003969A1
              (en)
            
            * | 1989-09-21 | 1991-04-04 | Alan Powell | Seat | 
        
          | JPH0523958U
              (ja)
            
            * | 1991-03-15 | 1993-03-30 | 株式会社イトーキ | Oa機器用椅子 | 
        
          | US5156310A
              (en)
            
            * | 1991-08-01 | 1992-10-20 | Biedenharn Jr Eric C | Combination backpack and stool | 
        
          | US5186372A
              (en)
            
            * | 1991-08-01 | 1993-02-16 | Biedenharn Jr Eric C | Combination backpack and stool | 
        
          | US5630648A
              (en)
            
            * | 1992-08-27 | 1997-05-20 | Harry C. Sweere | Dynamic posture chair | 
        
          | ES2082682B1
              (es)
            
            * | 1992-10-14 | 1997-02-16 | Serrano Antonio Bustamante | Asiento. | 
        
          | US5445301A
              (en)
            
            * | 1994-01-10 | 1995-08-29 | Biedenharn, Jr.; Eric C. | Combination backpack and stool | 
        
          | US5542746A
              (en)
            
            * | 1994-03-17 | 1996-08-06 | Bujaryn; L. Walter | Variable posture component system seating device | 
        
          | SE515003C2
              (sv)
            
            * | 1995-09-21 | 2001-05-28 | Yrjoe Rinne | Stol | 
        
          | DE29613135U1
              (de)
            
            * | 1996-08-01 | 1996-11-14 | Heinrich Kampmann GmbH & Co., 49811 Lingen | Sitz | 
        
          | GB9710043D0
              (en)
            
            * | 1997-05-17 | 1997-07-09 | Cobb Adrian F | Ergonomic back rest and seat suport | 
        
          | US5913572A
              (en)
            
            * | 1997-07-28 | 1999-06-22 | Grimaldi; Camille M. | Multi-roller beach chair | 
        
          | US5845969A
              (en)
            
            * | 1997-07-28 | 1998-12-08 | Grimaldi; Camille M. | Rolling beach lounge chair | 
        
          | FR2769813A1
              (fr)
            
            * | 1997-10-20 | 1999-04-23 | Joel Herrou | Siege bas pour postures naturelles | 
        
          | GB9818702D0
              (en)
            
            * | 1997-12-18 | 1998-10-21 | Stadium Products Limited | Simulated fabric-covered article | 
        
          | US6123390A
              (en)
            
            * | 1998-03-09 | 2000-09-26 | Greenwald; Louis A. | Orthopedic chair | 
        
          | FI3689U1
              (fi) | 1998-07-13 | 1998-10-26 | Easydoing Oy | Satulatuoli | 
        
          | US6251123B1
              (en) | 1998-07-15 | 2001-06-26 | Michael S. Patner | Therapeutic device and method | 
        
          | US5921621A
              (en)
            
            * | 1998-07-21 | 1999-07-13 | Cook; David G. | Collapsible chair | 
        
          | RU2144302C1
              (ru)
            
            * | 1999-06-03 | 2000-01-20 | Канторов Дмитрий Аскольдович | Эргономическое ложе | 
        
          | CA2375917A1
              (en) | 1999-06-28 | 2001-01-04 | Studio Innova Inc. | An improved open-angle seat for a chair | 
        
          | DE10006556A1
              (de)
            
            * | 2000-02-15 | 2001-08-16 | Marion Kielhorn | Sitzmöbel mit wippbarer Sitzfläche | 
        
          | US6481795B1
              (en)
            
            * | 2000-06-05 | 2002-11-19 | Burl Pettibon | Therapeutic chair | 
        
          | US6619747B2
              (en) | 2001-04-25 | 2003-09-16 | Kam Ko | Torso and forearm supporting device for chairs and workstands | 
        
          | JP3655210B2
              (ja)
            
            * | 2001-05-02 | 2005-06-02 | 星野楽器株式会社 | ドラム用椅子 | 
        
          | ITMI20012036A1
              (it)
            
            * | 2001-10-01 | 2003-04-01 | Giancarlo Strona | Sedile anatomico amovibile | 
        
          | AUPR851701A0
              (en)
            
            * | 2001-10-26 | 2001-11-29 | Sorrenti, Marcus | Seating apparatus | 
        
          | US20030127896A1
              (en)
            
            * | 2001-12-14 | 2003-07-10 | Deimen Michael L. | Chair with lumbar support and conforming back | 
        
          | US6811218B2
              (en) | 2001-12-14 | 2004-11-02 | Kimball International, Inc. | Chair with conforming seat | 
        
          | DE20202141U1
              (de)
            
            * | 2002-02-12 | 2002-04-11 | Koala Design GmbH, 97618 Wollbach | Sitzmöbel in Form eines Kinderhockers | 
        
          | JP2005533538A
              (ja)
            
            * | 2002-05-24 | 2005-11-10 | サヴィー・フィジオセラピー・ピーティワイ・リミテッド | 着座装置 | 
        
          | US7021037B1
              (en)
            
            * | 2002-11-21 | 2006-04-04 | Szymas Karen M | Adaptive saddle with support assembly | 
        
          | USD598208S1
              (en) | 2003-04-16 | 2009-08-18 | Albritton William J | Couple's chair | 
        
          | US7887127B1
              (en) | 2003-04-16 | 2011-02-15 | Albritton William J | Couple's chair | 
        
          | US7090303B2
              (en)
            
            * | 2003-06-05 | 2006-08-15 | William Kropa | Rehabilitation training and exercise chair | 
        
          | JP2005104262A
              (ja)
            
            * | 2003-09-30 | 2005-04-21 | Honda Motor Co Ltd | 車両のシート構造 | 
        
          | US7396078B2
              (en)
            
            * | 2004-02-05 | 2008-07-08 | Wenger Corporation | Music posture chair | 
        
          | US7121629B2
              (en)
            
            * | 2004-04-19 | 2006-10-17 | Shang-Wei Chou | Healthy chair | 
        
          | GB2424178A
              (en)
            
            * | 2005-03-18 | 2006-09-20 | Kathleen Topping | Portable height adjustable chair for use by an obstetrics practitioner during delivery of a baby | 
        
          | AU308820S
              (en) | 2005-11-23 | 2006-08-16 | The Bambach Saddle Seat Pty Ltd | A seat | 
        
          | US7261368B1
              (en)
            
            * | 2006-02-27 | 2007-08-28 | Todd Clausnitzer | Ergonomic chair | 
        
          | JP2009540871A
              (ja)
            
            * | 2006-03-16 | 2009-11-26 | ギル ガン,スン | 腰の強化に使用される椅子 | 
        
          | WO2007121547A1
              (en)
            
            * | 2006-04-20 | 2007-11-01 | Distribution Gablex Inc. | Abdominal support swivel chair | 
        
          | CN201119969Y
              (zh)
            
            * | 2007-10-31 | 2008-09-24 | La国际集团有限公司 | 一种纹身椅 | 
        
          | GB2457087A
              (en)
            
            * | 2008-02-04 | 2009-08-05 | Valtra Oy Ab | Vehicle seat | 
        
          | US8317267B2
              (en)
            
            * | 2009-07-20 | 2012-11-27 | Jay Stuart Wallace | Ergonomic saddle chair | 
        
          | US20110304192A1
              (en)
            
            * | 2010-06-15 | 2011-12-15 | Augustat Betty A | Ergometric Chair Apparatus | 
        
          | US8544943B2
              (en)
            
            * | 2010-09-27 | 2013-10-01 | Rod Fields | Barber/beautician personal assistant | 
        
          | USD673398S1
              (en)
            
            * | 2011-02-17 | 2013-01-01 | Scandinavian Business Seating AS | Back for swivel chair | 
        
          | US20120319444A1
              (en)
            
            * | 2011-06-14 | 2012-12-20 | Paul Onopa | Sitting and Standing Chair | 
        
          | HRP20210128T1
              (hr)
            
            * | 2011-09-03 | 2021-03-19 | Pham Thi Kim Loan | Ortopedska stolica za tretman i prevenciju bolesti kralježnice | 
        
          | ITVT20120001A1
              (it)
            
            * | 2012-01-18 | 2013-07-19 | Riccardo Cacace | Sedia utilizzabile in fase lavorativa per rilassare la schiena, tramite appoggio toracico. | 
        
          | KR20130102965A
              (ko)
            
            * | 2012-03-09 | 2013-09-23 | 곽현정 | 의자용 가슴받이지지대 체결구조 | 
        
          | US20130320740A1
              (en)
            
            * | 2012-06-05 | 2013-12-05 | Kristen Samiee | System and Method for Converting a Chair into a Yoga Chair | 
        
          | US8740303B2
              (en)
            
            * | 2012-06-22 | 2014-06-03 | Michael V. Halliday | Customizable chair with multipoint adjustment | 
        
          | US9254042B2
              (en) | 2012-06-22 | 2016-02-09 | Michael V. Halliday | Backrest member including an adjustable platform for use with a chair | 
        
          | FR2999124B1
              (fr)
            
            * | 2012-12-12 | 2016-05-27 | Airbus Operations Sas | Dispositif d'assise comprenant un dossier escamotable vers l'avant | 
        
          | CN110269424A
              (zh)
            
            * | 2013-11-29 | 2019-09-24 | 株式会社 Mtg | 姿势保持用具 | 
        
          | USD731802S1
              (en) | 2014-06-12 | 2015-06-16 | Steelcase Inc. | Chair | 
        
          | USD726468S1
              (en) | 2014-06-12 | 2015-04-14 | Steelcase Inc. | Chair | 
        
          | USD731801S1
              (en) | 2014-06-12 | 2015-06-16 | Steelcase Inc. | Chair | 
        
          | CN104172780A
              (zh)
            
            * | 2014-07-22 | 2014-12-03 | 邵子林 | 一种双向式靠背椅 | 
        
          | US9783092B2
              (en)
            
            * | 2014-08-01 | 2017-10-10 | Johnson Outdoors Inc. | Kayak seat | 
        
          | US9770111B2
              (en) | 2015-03-05 | 2017-09-26 | A-Dec, Inc. | Height adjusting mechanism and stool for dental practitioner | 
        
          | US9861203B2
              (en)
            
            * | 2015-03-05 | 2018-01-09 | A-Dec, Inc. | Seat assembly for task-oriented seating | 
        
          | CN105078061B
              (zh)
            
            * | 2015-09-21 | 2018-06-22 | 张连辰 | 一种便于起立的矫姿椅 | 
        
          | JP6595295B2
              (ja)
            
            * | 2015-10-14 | 2019-10-23 | 株式会社タチエス | 車両用シート | 
        
          | USD781606S1
              (en)
            
            * | 2016-01-12 | 2017-03-21 | Johnny Ngo | Chair | 
        
          | JP6970179B2
              (ja)
            
            * | 2016-04-13 | 2021-11-24 | フレキシボッド・リミテッド | エクササイズ手段を有する椅子 | 
        
          | MX2018013230A
              (es)
            
            * | 2016-08-02 | 2019-08-29 | Krueger Int Inc | Silla de salon de clases que cuenta con respaldo multifuncion. | 
        
          | CA2953773A1
              (en)
            
            * | 2016-12-30 | 2018-06-30 | Dynamic Disc Designs Corp. | Ergonomic work station chair | 
        
          | DE102017110834B4
              (de)
            
            * | 2017-05-18 | 2023-08-31 | Mariam Vollmar | Sitzvorrichtung zur Unterstützung einer aufrechten Sitzposition | 
        
          | WO2019073467A1
              (en)
            
            * | 2017-10-13 | 2019-04-18 | Flexibod Limited | SEAT | 
        
          | WO2019204714A1
              (en)
            
            * | 2018-04-19 | 2019-10-24 | Cramer Llc | Chair having pliable backrest and methods for same | 
        
          | CN209219658U
              (zh)
            
            * | 2018-07-04 | 2019-08-09 | 意网有限公司 | 用于改善坐姿的垫子 | 
        
          | US20200121089A1
              (en)
            
            * | 2018-10-21 | 2020-04-23 | Deborah June Mary Rucci | Torso support chair | 
        
          | DE102019102375A1
              (de) | 2019-01-30 | 2020-07-30 | Christian Behrendt | Stuhl, Pressurvorrichtung | 
        
          | US11253076B2
              (en)
            
            * | 2019-02-05 | 2022-02-22 | Unchair LLC | Chair having open shoulder backrest | 
        
          | DE202019103701U1
              (de)
            
            * | 2019-07-05 | 2020-10-09 | Mariam Vollmar | Sitztechnik | 
        
          | IT201900013056A1
              (it)
            
            * | 2019-07-26 | 2021-01-26 | Piero Giovanni Nicola Maria Bruni | Sedile oscillante con snodo ribassato | 
        
          | BR112022002239A2
              (pt)
            
            * | 2019-08-07 | 2022-06-14 | F Smit Holding B V | Assento, particularmente para jogar jogos eletrônicos | 
        
          | JP7542862B2
              (ja)
            
            * | 2020-01-09 | 2024-09-02 | NatureArchitects株式会社 | 椅子、座部および背もたれ | 
        
          | US11583090B2
              (en)
            
            * | 2021-03-30 | 2023-02-21 | Chuanqi Liu | Seating device and manufacturing method thereof | 
        
          | US11419421B1
              (en)
            
            * | 2021-03-30 | 2022-08-23 | Chuanqi Liu | Seating device | 
        
          | WO2023287872A2
              (en)
            
            * | 2021-07-14 | 2023-01-19 | Anthro Form, Llc | Seat configuration | 
        
          | US11744375B2
              (en)
            
            * | 2021-07-14 | 2023-09-05 | Anthro Form, Llc | Seat configuration | 
        
          | AU2022343622A1
              (en)
            
            * | 2021-09-10 | 2024-03-14 | Ace Bayou Corp. | Smart gaming chair | 
        
          | US11730269B1
              (en)
            
            * | 2022-03-10 | 2023-08-22 | Gary Rosebrook | Posture control chair | 
        
          | JP2023178152A
              (ja)
            
            * | 2022-06-02 | 2023-12-14 | 田中 永一郎 | 椅子の背もたれ | 
        
          | US20240090673A1
              (en)
            
            * | 2022-09-13 | 2024-03-21 | Craig Stuart Anderson | Chair with upper frontal support |