A47C 20/046
By means of a rack-and-pinion or like gearing mechanism
Official title: {by means of a rack-and-pinion or like gearing mechanism}
A47C20/046 (By means of a rack-and-pinion or like gearing mechanism) appears on 15 US grants and 12 published applications in this corpus.
Search patents in A47C- Granted patents
- 15
- Published applications
- 12
- Assignees
- 8
- Inventors
- 21
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 1 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 3 |
| 2018 | 1 | 0 |
| 2019 | 1 | 2 |
| 2020 | 2 | 0 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Tiltable bed frame17 Mar 2026US 12,575,681 B1Innovative Sleep Technologies
- Motorized bed and bed frame31 Aug 2021US 11,103,079 B2Inno-Sports Co., Ltd.
- Cradle frame and structure12 May 2020US 10,646,060 B2Shanghai Xintang Industrial Co., Ltd
- Cradle frame and structure14 Apr 2020US 10,617,242 B2Shanghai Xintang Industrial Co., Ltd
- Headrest adjusting device17 Sep 2019US 10,413,078 B2Dongguan Weihong Hardware and Plastic Products Co., Ltd.
- Tiltable bed frame25 Jun 2026US 2026/0174246 A1Innovative Sleep Technologies
- Pivotal fitting and sitting or lying device23 May 2024US 2024/0164526 A1Hettich Franke GmbH & Co. KG
- Motorized bed and bed frame31 Oct 2019US 2019/0328143 A1Inno-Sports Co., Ltd.
- Headrest adjusting device28 Mar 2019US 2019/0090649 A1Dongguan Weihong Hardware and Plastic Products Co., Ltd.
- Cradle frame and structure28 Sep 2017US 2017/0273480 A1Shanghai Xintang Industrial Co., Ltd
Most cited
By later US patents
- System for producing anthropometric, adjustable, articulated beds30US 6,516,480 B22003
- System for producing anthropometric, adjustable, articulated beds26US 6,347,420 B22002
- Folding bed20US 7,810,189 B22010
- Multi-stage adjustable double-person spring bed mattress structure17US 5,791,001 A1998
- Portable, adjustable backrest for beds and the like14US 4,185,342 A1980