H01H 21/28
Adapted for actuation at a limit or other predetermined position in the
Official title: adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling switch of a lift
H01H21/28 (Adapted for actuation at a limit or other predetermined position in the) appears on 108 US grants and 75 published applications in this corpus.
Search patents in H01H- Granted patents
- 108
- Published applications
- 75
- Assignees
- 71
- Inventors
- 199
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 4 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 2 |
| 2002 | 3 | 3 |
| 2003 | 6 | 4 |
| 2004 | 4 | 4 |
| 2005 | 4 | 5 |
| 2006 | 5 | 5 |
| 2007 | 2 | 3 |
| 2008 | 1 | 1 |
| 2009 | 1 | 3 |
| 2010 | 1 | 0 |
| 2011 | 3 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 3 |
| 2014 | 1 | 5 |
| 2015 | 2 | 8 |
| 2016 | 10 | 6 |
| 2017 | 2 | 2 |
| 2018 | 6 | 1 |
| 2019 | 2 | 3 |
| 2020 | 1 | 5 |
| 2021 | 4 | 3 |
| 2022 | 4 | 1 |
| 2023 | 2 | 3 |
| 2024 | 2 | 1 |
| 2025 | 0 | 1 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Limit switch19 May 2026US 12,633,476 B2OMRON Corporation
- Limit switch1 Oct 2024US 12,106,913 B2OMRON Corporation
- Sensing device for sensing the position of a movable object2 Jan 2024US 11,862,413 B2Framatome
- Rotational over travel protection for preventing over rotation of an object18 Apr 2023US 11,631,557 B2Raytheon Company
- Container including illuminator with zipper-actuated switch having magnetic latch18 Apr 2023US 11,631,558 B2
- Limit switch17 Sep 2026US 2026/0279703 A1OMRON Corporation
- Switching system23 Jul 2026US 2026/0208819 A1
- System and method for fault-tolerant end of travel detection for greater than 360 degree motion26 Jun 2025US 2025/0205904 A1Macdonald, Dettwiler and Associates Inc.
- Limit switch28 Mar 2024US 2024/0105406 A1OMRON Corporation
- Sensing device for sensing the position of a movable object23 Mar 2023US 2023/0091585 A1Framatome
Most cited
By later US patents
- Lever switch23US 6,479,776 B2Matsushita Electric Industrial Co., Ltd. · 2002
- Pushbutton switch21US 6,222,144 B1Sagami Electric Co., Ltd. · 2001
- Microswitch18US 6,242,706 B1Mic Enterprise Co., Ltd. · 2001
- Closure activated switch16US 4,160,887 ATRW Inc. · 1979
- Lever switch and detecting device using same12US 6,525,285 B2Matsushita Electric Industrial Co., Ltd. · 2003