H01H 50/20
Movable inside coil and substantially lengthwise with respect to axis thereof
Official title: movable inside coil and substantially lengthwise with respect to axis thereof; movable coaxially with respect to coil
H01H50/20 (Movable inside coil and substantially lengthwise with respect to axis thereof) appears on 239 US grants and 244 published applications in this corpus.
Search patents in H01H- Granted patents
- 239
- Published applications
- 244
- Assignees
- 132
- Inventors
- 489
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 8 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 7 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 1 |
| 2002 | 0 | 0 |
| 2003 | 0 | 4 |
| 2004 | 3 | 2 |
| 2005 | 3 | 3 |
| 2006 | 1 | 2 |
| 2007 | 3 | 1 |
| 2008 | 0 | 3 |
| 2009 | 3 | 7 |
| 2010 | 1 | 1 |
| 2011 | 5 | 5 |
| 2012 | 7 | 13 |
| 2013 | 9 | 7 |
| 2014 | 4 | 6 |
| 2015 | 7 | 20 |
| 2016 | 15 | 22 |
| 2017 | 14 | 15 |
| 2018 | 19 | 15 |
| 2019 | 15 | 12 |
| 2020 | 11 | 19 |
| 2021 | 11 | 19 |
| 2022 | 14 | 18 |
| 2023 | 19 | 13 |
| 2024 | 16 | 11 |
| 2025 | 13 | 12 |
| 2026 | 3 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Magnetic circuit system with enhanced initial electromagnetic attraction and high-voltage DC relay5 May 2026US 12,620,537 B2Xiamen Hongfa Electric Power Controls Co., Ltd.
- Electrical switching device with locking function14 Apr 2026US 12,603,240 B2Schaltbau GmbH
- Component assemblies and methods of manufacturing component assemblies that include a magnetic yoke assembly for electromechanical contactors and relays20 Jan 2026US 12,531,199 B2Sensata Technologies, Inc.
- Relay having a pressure relief valve assembly2 Dec 2025US 12,488,954 B2Xiamen Hongfa Electric Power Controls Co., Ltd.
- Electromagnetic switch having display light25 Nov 2025US 12,482,613 B2
- Switching device27 Aug 2026US 2026/0253825 A1Ellenberger & Poensgen GmbH
- Magnetic circuit system with enhanced intial electromagnetic attraction and high-voltage dc relay20 Aug 2026US 2026/0245820 A1Xiamen Hongfa Electric Power Controls Co., Ltd.
- Contactor Static Contact, Static Contact Assembly and Contactor13 Aug 2026US 2026/0237581 A1Tyco Electronics (Shanghai) Co., Ltd.
- Circuit breaker23 Jul 2026US 2026/0213102 A1Ellenberger & Poensgen GmbH
- Economizing electromechanical contactors21 May 2026US 2026/0142108 A1Sensata Technologies, Inc.
Most cited
By later US patents
- Solenoid actuator having a magnetic flux sensor87US 5,032,812 AAutomatic Switch Company · 1991
- Electromagnetic switching apparatus68US 6,911,884 B2Matsushita Electric Works, Ltd. · 2005
- Contact device63US 8,138,872 B2OMRON Corporation · 2012
- Solenoid switch contact and mounting assembly60US 5,021,760 AClum Manufacturing Company, Inc. · 1991
- Electromagnet device51US 8,179,217 B2OMRON Corporation · 2012