A47B 9/00
Tables with tops of variable height
Official title: Tables with tops of variable height ({lecterns with variable height A47B19/06; school forms or desks with variable height A47B39/02, A47B41/02}; seats with variable height A47C3/20)
A47B9/00 (Tables with tops of variable height) appears on 1,414 US grants and 1,337 published applications in this corpus.
Search patents in A47B- Granted patents
- 1,414
- Published applications
- 1,337
- Assignees
- 593
- Inventors
- 2,200
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 4 | 0 |
| 1978 | 7 | 0 |
| 1979 | 9 | 0 |
| 1980 | 3 | 0 |
| 1981 | 7 | 0 |
| 1982 | 2 | 0 |
| 1983 | 4 | 0 |
| 1984 | 4 | 0 |
| 1985 | 11 | 0 |
| 1986 | 15 | 0 |
| 1987 | 16 | 0 |
| 1988 | 5 | 0 |
| 1989 | 11 | 0 |
| 1990 | 9 | 0 |
| 1991 | 6 | 0 |
| 1992 | 10 | 0 |
| 1993 | 11 | 0 |
| 1994 | 17 | 0 |
| 1995 | 20 | 0 |
| 1996 | 16 | 0 |
| 1997 | 21 | 0 |
| 1998 | 20 | 0 |
| 1999 | 18 | 0 |
| 2000 | 23 | 0 |
| 2001 | 21 | 5 |
| 2002 | 25 | 21 |
| 2003 | 21 | 22 |
| 2004 | 12 | 25 |
| 2005 | 12 | 23 |
| 2006 | 8 | 22 |
| 2007 | 11 | 27 |
| 2008 | 10 | 27 |
| 2009 | 15 | 21 |
| 2010 | 17 | 18 |
| 2011 | 20 | 25 |
| 2012 | 26 | 28 |
| 2013 | 12 | 29 |
| 2014 | 30 | 49 |
| 2015 | 47 | 51 |
| 2016 | 51 | 80 |
| 2017 | 77 | 93 |
| 2018 | 72 | 96 |
| 2019 | 89 | 104 |
| 2020 | 107 | 118 |
| 2021 | 89 | 98 |
| 2022 | 94 | 88 |
| 2023 | 83 | 82 |
| 2024 | 84 | 76 |
| 2025 | 72 | 55 |
| 2026 | 34 | 54 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- A47B 9/20Telescopic guides449
- A47B 9/16Tables with tops of variable height: with means for, or adapted for221
- A47B 9/04Tables with tops of variable height: with vertical spindle217
- A47B 9/10Tables with tops of variable height: with vertically-acting fluid cylinder168
- A47B 9/14Tables with tops of variable height: with pins coacting with holes159
- A47B 9/02Tables with tops of variable height: with balancing device151
- A47B 9/12Tables with tops of variable height: with flexible height-adjusting means111
- A47B 9/18Tables with tops of variable height: with additional top or additional legs81
All 12 subgroupsShow fewer
- A47B 9/08Tables with tops of variable height: with clamps acting on vertical rods60
- A47B 2009/006Tables with tops of variable height: of two distinct heightsIndexing code46
- A47B 9/06Tables with tops of variable height: with vertical toothed rack42
- A47B 2009/003Tables with tops of variable height: with inclined slidable surfacesIndexing code21
Recent patents
- Folding table with adjustable heights6 Oct 2026US 12,751,542 B2Yixian Blow Molding Furniture Co., Ltd.
- Cable management apparatus and method8 Sep 2026US 12,727,666 B2Humanscale Corporation
- Adjustable lift system8 Sep 2026US 12,729,801 B2Ergotron, Inc.
- System and method for automatically setting preferred workstation heights to increase human movement and promote wellness25 Aug 2026US 12,714,222 B1Steelcase Inc.
- Height adjustable desk11 Aug 2026US 12,702,223 B1
- User interface for height adjustable table8 Oct 2026US 2026/0305813 A1MillerKnoll, Inc.
- Height adjustable table8 Oct 2026US 2026/0305814 A1Ue Furniture Co., Ltd
- Height-Adjustment System1 Oct 2026US 2026/0294093 A1
- Standing desk with modular base24 Sep 2026US 2026/0283344 A1
- Electric height-adjustable desk17 Sep 2026US 2026/0272158 A1CKnapp Sales, Inc.
Most cited
By later US patents
- Method of controlling height adjustable work station132US 5,323,695 AHaworth, Inc. · 1994
- Adjustable leg assembly131US 6,595,144 B1Suspa GmbH · 2003
- Height adjustable table125US 5,224,429 AHaworth, Inc. · 1993
- Linear motion table leg120US 6,378,816 B12002
- Height adjustable work surface and control therefor111US 6,286,441 B1Steelcase Development Corporation · 2001