A47C 20/043
By means of peg-and-notch or pawl-and-ratchet mechanism
Official title: {by means of peg-and-notch or pawl-and-ratchet mechanism}
A47C20/043 (By means of peg-and-notch or pawl-and-ratchet mechanism) appears on 45 US grants and 22 published applications in this corpus.
Search patents in A47C- Granted patents
- 45
- Published applications
- 22
- Assignees
- 22
- Inventors
- 67
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 2 | 1 |
| 2005 | 1 | 1 |
| 2006 | 2 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 2 | 2 |
| 2013 | 1 | 1 |
| 2014 | 1 | 2 |
| 2015 | 3 | 1 |
| 2016 | 2 | 0 |
| 2017 | 1 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 2 |
| 2020 | 1 | 0 |
| 2021 | 1 | 2 |
| 2022 | 0 | 0 |
| 2023 | 1 | 2 |
| 2024 | 0 | 1 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Manually adjustable bed8 Sep 2026US 12,727,677 B2Huizhou Flex Smart Furniture Co., Ltd.
- Microtraction bed18 Jul 2023US 11,701,287 B1
- Actuated graduated lateral rotation apparatus17 Aug 2021US 11,090,208 B2Hill-Rom Services, Inc.
- Convertible chair bed device3 Nov 2020US 10,821,040 B2
- Support apparatus for supporting a person's head above a mattress or other surface3 Dec 2019US 10,492,617 B1
- Manually adjustable bed20 Feb 2025US 2025/0057321 A1Huizhou Flex Smart Furniture Co., Ltd.
- Pivotal fitting and sitting or lying device23 May 2024US 2024/0164526 A1Hettich Franke GmbH & Co. KG
- Furniture Article6 Apr 2023US 2023/0106161 A1
- Adjustable Sit-up Back Rest9 Feb 2023US 2023/0038189 A1
- Modular, Compact, Stackable Beds And Associated Systems And Methods4 Nov 2021US 2021/0337975 A1Holt Sales and Service, LLC
Most cited
By later US patents
- Angle adjusting device44US 6,565,156 B1Koyo Giken Inc. · 2003
- Ascending/descending structure38US 5,588,766 A1996
- Quick release manual type Fowler for hospital stretchers34US 4,346,487 AWhittaker Medical Manufacturing Company · 1982
- Folding bed frame30US 9,314,386 B12016
- Adjustable collapsing cot27US 6,151,730 A2000