H01H 33/18
Using blow-out magnet
Official title: using blow-out magnet {(for vacuum switches H01H33/664)}
H01H33/18 (Using blow-out magnet) appears on 178 US grants and 133 published applications in this corpus.
Search patents in H01H- Granted patents
- 178
- Published applications
- 133
- Assignees
- 93
- Inventors
- 385
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 8 | 0 |
| 1982 | 6 | 0 |
| 1983 | 5 | 0 |
| 1984 | 7 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 4 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 2 |
| 2002 | 2 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 2 |
| 2005 | 2 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 1 | 2 |
| 2013 | 2 | 16 |
| 2014 | 6 | 13 |
| 2015 | 12 | 13 |
| 2016 | 13 | 13 |
| 2017 | 14 | 7 |
| 2018 | 5 | 6 |
| 2019 | 8 | 6 |
| 2020 | 9 | 8 |
| 2021 | 6 | 12 |
| 2022 | 7 | 8 |
| 2023 | 10 | 12 |
| 2024 | 9 | 5 |
| 2025 | 5 | 2 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Multi-contact miniature circuit breaker with reduced arcing28 Jul 2026US 12,695,036 B2Eaton Intelligent Power Limited
- Circuit breaking unit and air circuit breaker including same5 May 2026US 12,620,536 B2Ls Electric Co., Ltd.
- Two-electric-pole circuit breaker actuated by a common pyrotechnic device21 Apr 2026US 12,609,258 B2Safran Electrical & Power
- Direct-current contactor, power distribution box, power battery assembly, and vehicle18 Nov 2025US 12,476,059 B2Huawei Digital Power Technologies Co., Ltd.
- Power supply system and switch unit12 Aug 2025US 12,387,889 B2Huawei Digital Power Technologies Co., Ltd.
- Switchgear16 Jul 2026US 2026/0204500 A1Mitsubishi Electric Corporation
- High-voltage connector with joining groove21 May 2026US 2026/0142106 A1Pierburg GmbH
- Switch with magnetic blow-out of electric arc, and manufacturing method thereof30 Apr 2026US 2026/0120984 A1Gorlan Team, S. L. U
- Multi-contact miniature circuit breaker with reduced arcing19 Jun 2025US 2025/0201499 A1Eaton Intelligent Power Limited
- Quenching chamber for two-way dc current9 Jan 2025US 2025/0014850 A1Safran Electrical & Power
Most cited
By later US patents
- Relay27US 8,674,796 B2Ngk Spark Plug Co., Ltd. · 2014
- Magnetically driven ring arc runner for circuit interrupter23US 4,052,577 AI-T-E Imperial Corporation · 1977
- Power breaker20US 5,902,978 AAsea Brown Boveri AG · 1999
- Vacuum interrupter with a single internal assembly for generating an axial magnetic field15US 5,691,522 AEaton Corporation · 1997
- Magnetic blow-out arc extinguishing device14US 4,153,827 A1979