H01H 53/00
Relays using the dynamo-electric effect, i.e. relays in which contacts are opened
Official title: Relays using the dynamo-electric effect, i.e. relays in which contacts are opened or closed due to relative movement of current-carrying conductor and magnetic field caused by force of interaction between them
H01H53/00 (Relays using the dynamo-electric effect, i.e. relays in which contacts are opened) appears on 40 US grants and 41 published applications in this corpus.
Search patents in H01H- Granted patents
- 40
- Published applications
- 41
- Assignees
- 27
- Inventors
- 92
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 2 |
| 2003 | 1 | 1 |
| 2004 | 0 | 1 |
| 2005 | 1 | 1 |
| 2006 | 4 | 5 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 2 | 0 |
| 2012 | 0 | 2 |
| 2013 | 2 | 2 |
| 2014 | 1 | 5 |
| 2015 | 4 | 1 |
| 2016 | 2 | 1 |
| 2017 | 1 | 2 |
| 2018 | 2 | 0 |
| 2019 | 1 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
| 2022 | 0 | 3 |
| 2023 | 2 | 7 |
| 2024 | 6 | 2 |
| 2025 | 1 | 2 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H01H 53/02Electrodynamic relays, i.e. relays in which the interaction is between two current-carrying18
- H01H 53/01Details12
- H01H 53/06Magnetodynamic relays, i.e. relays in which the magnetic field is produced by6
- H01H 53/10Induction relays, i.e. relays in which the interaction is between a magnetic2
- H01H 53/08Wherein a mercury contact constitutes the current-carrying conductor1
- H01H 53/14Contacts actuated by an electric motor through fluid-pressure transmission0
Recent patents
- Movable contact part and direct current relay comprising same12 May 2026US 12,626,877 B2Ls Electric Co., Ltd.
- 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.
- Short circuit current-resistant and arc-extinguishing DC relay4 Mar 2025US 12,243,700 B2Xiamen Hongfa Electric Power Controls Co., Ltd.
- Levitation fuse device12 Nov 2024US 12,142,444 B2Gigavac, LLC
- Direct-current relay capable of extinguishing arc and resisting short-circuit current2 Jul 2024US 12,027,333 B2Xiamen Hongfa Electric Power Controls Co., Ltd.
- Dc relay for anti-short circuit current and arc extinction8 May 2025US 2025/0149280 A1Xiamen Hongfa Electric Power Controls Co., Ltd.
- Dc relay for anti-short circuit current and arc extinction8 May 2025US 2025/0149281 A1Xiamen Hongfa Electric Power Controls Co., Ltd.
- Short circuit current-resistant and arc-extinguishing dc relay30 May 2024US 2024/0177956 A1Xiamen Hongfa Electric Power Controls Co., Ltd.
- Movable contact part and direct current relay comprising same18 Jan 2024US 2024/0021389 A1Ls Electric Co., Ltd.
- Direct-current relay capable of extinguishing arc and resisting short-circuit current17 Aug 2023US 2023/0260730 A1Xiamen Hongfa Electric Power Controls Co., Ltd.
Most cited
By later US patents
- MEMS micro-relay with coupled electrostatic and electromagnetic actuation39US 6,635,837 B2ADC Telecommunications, Inc. · 2003
- Miniature magnetic switch structures32US 8,432,240 B2Telepath Networks, Inc. · 2013
- Operating apparatus for switching device28US 6,373,675 B1Kabushiki Kaisha Toshiba · 2002
- Electromagnetic actuator and switch apparatus equipped with such an electromagnetic actuator13US 7,982,567 B2Schneider Electric Industries SAS · 2011
- Short circuit current-resistant and arc-extinguishing DC relay8US 12,243,700 B2Xiamen Hongfa Electric Power Controls Co., Ltd. · 2025