H01H 9/44
Using blow-out magnet
Official title: using blow-out magnet
H01H9/44 (Using blow-out magnet) appears on 477 US grants and 467 published applications in this corpus.
Search patents in H01H- Granted patents
- 477
- Published applications
- 467
- Assignees
- 146
- Inventors
- 777
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 6 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 6 | 0 |
| 1984 | 3 | 0 |
| 1985 | 6 | 0 |
| 1986 | 2 | 0 |
| 1987 | 6 | 0 |
| 1988 | 2 | 0 |
| 1989 | 6 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 6 | 0 |
| 1993 | 1 | 0 |
| 1994 | 6 | 0 |
| 1995 | 2 | 0 |
| 1996 | 8 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 2 | 0 |
| 2000 | 5 | 0 |
| 2001 | 3 | 2 |
| 2002 | 7 | 4 |
| 2003 | 2 | 4 |
| 2004 | 6 | 3 |
| 2005 | 2 | 4 |
| 2006 | 4 | 2 |
| 2007 | 2 | 1 |
| 2008 | 2 | 8 |
| 2009 | 4 | 14 |
| 2010 | 6 | 7 |
| 2011 | 7 | 9 |
| 2012 | 11 | 11 |
| 2013 | 15 | 49 |
| 2014 | 28 | 33 |
| 2015 | 32 | 26 |
| 2016 | 27 | 23 |
| 2017 | 30 | 21 |
| 2018 | 16 | 16 |
| 2019 | 22 | 25 |
| 2020 | 17 | 18 |
| 2021 | 18 | 22 |
| 2022 | 16 | 34 |
| 2023 | 28 | 46 |
| 2024 | 34 | 41 |
| 2025 | 29 | 22 |
| 2026 | 15 | 22 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Arc path formation unit and direct current relay comprising same22 Sep 2026US 12,744,175 B2Ls Electric Co., Ltd.
- Relay and battery system including the same25 Aug 2026US 12,719,003 B2LG Energy Solution, Ltd.
- High-voltage arc quenching systems and electrical switching devices comprising the same16 Jun 2026US 12,658,382 B2TE Connectivity Germany GmbH
- Relay9 Jun 2026US 12,651,719 B2Xiamen Hongfa Electric Power Controls Co., Ltd.
- Interrupter and air circuit breaker comprising same2 Jun 2026US 12,646,675 B2Ls Electric Co., Ltd.
- Switch10 Sep 2026US 2026/0269149 A1Mitsubishi Electric Corporation
- Power contactor having an electric arc clarification screen, and aircraft comprising such a power contactor13 Aug 2026US 2026/0237579 A1Safran Electrical & Power
- Relay comprising arc induction shield structure13 Aug 2026US 2026/0237582 A1Ls E-Mobility Solutions Co., Ltd.
- Electric circuit breaker device6 Aug 2026US 2026/0229432 A1Daicel Corporation
- Arc path formation unit and direct current relay comprising same6 Aug 2026US 2026/0229435 A1Ls E-Mobility Solutions Co., Ltd.
Most cited
By later US patents
- Molded case circuit breaker contact109US 5,313,180 AMerlin Gerin · 1994
- Molded case circuit breaker with contact bridge slowed down at the end of repulsion travel106US 5,310,971 AMerlin Gerin · 1994
- Circuit breaker with high electrodynamic strength and breaking capacity98US 6,018,284 ASchneider Electric Industries SAS · 2000
- Plunger type electromagnetic relay with arc extinguishing structure92US 5,546,061 ANippondenso Co., Ltd. · 1996
- Contactor78US 6,700,466 B1Matsushita Electric Works, Ltd. · 2004