H01H 9/342
Venting arrangements for arc chutes
Official title: {Venting arrangements for arc chutes}
H01H9/342 (Venting arrangements for arc chutes) appears on 318 US grants and 233 published applications in this corpus.
Search patents in H01H- Granted patents
- 318
- Published applications
- 233
- Assignees
- 97
- Inventors
- 739
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 4 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 11 | 0 |
| 1987 | 5 | 0 |
| 1988 | 4 | 0 |
| 1989 | 4 | 0 |
| 1990 | 5 | 0 |
| 1991 | 8 | 0 |
| 1992 | 8 | 0 |
| 1993 | 6 | 0 |
| 1994 | 5 | 0 |
| 1995 | 6 | 0 |
| 1996 | 6 | 0 |
| 1997 | 1 | 0 |
| 1998 | 11 | 0 |
| 1999 | 5 | 0 |
| 2000 | 4 | 0 |
| 2001 | 11 | 4 |
| 2002 | 6 | 6 |
| 2003 | 7 | 8 |
| 2004 | 8 | 4 |
| 2005 | 11 | 8 |
| 2006 | 6 | 10 |
| 2007 | 3 | 3 |
| 2008 | 4 | 8 |
| 2009 | 7 | 10 |
| 2010 | 7 | 7 |
| 2011 | 3 | 6 |
| 2012 | 6 | 6 |
| 2013 | 7 | 9 |
| 2014 | 6 | 9 |
| 2015 | 8 | 16 |
| 2016 | 17 | 12 |
| 2017 | 9 | 12 |
| 2018 | 14 | 9 |
| 2019 | 10 | 10 |
| 2020 | 12 | 11 |
| 2021 | 8 | 6 |
| 2022 | 6 | 12 |
| 2023 | 6 | 16 |
| 2024 | 14 | 6 |
| 2025 | 8 | 16 |
| 2026 | 5 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Arc extinguishing unit and air circuit breaker comprising same25 Aug 2026US 12,718,996 B2Ls Electric Co., Ltd.
- Device for extinguishing arcs in an electrical circuit14 Jul 2026US 12,683,097 B2ABB Schweiz AG
- Interrupter and air circuit breaker comprising same2 Jun 2026US 12,646,675 B2Ls Electric Co., Ltd.
- Electromagnetic contactor capable of effectively extinguishing arc14 Apr 2026US 12,603,242 B2Ls Electric Co., Ltd.
- Exhaust gas module for an electrical switch, device formed by two exhaust gas modules of this type and switch cabinet comprising a device of this type24 Feb 2026US 12,562,329 B2Siemens Aktiengesellschaft
- Dual venting system for arc chute performance enhancement27 Aug 2026US 2026/0253815 A1Eaton Intelligent Power Limited
- A cassette casing unit of a moulded case circuit breaker (mccb)23 Jul 2026US 2026/0213099 A1Havells India Limited
- Fixed contact part and breaker including same23 Jul 2026US 2026/0213104 A1Ls Electric Co., Ltd.
- Circuit breaker23 Jul 2026US 2026/0213107 A1Fuji Electric Fa Components & Systems Co., Ltd.
- Ductless medium voltage (mv) switchgear with horizontal multilayer arc absorber with obtuse exhaust chimney design2 Jul 2026US 2026/0188986 A1Eaton Intelligent Power Limited
Most cited
By later US patents
- Instantaneous trip device of a circuit breaker119US 5,103,198 AMerlin Gerin · 1992
- Molded case circuit breaker with removable arc chutes and disengageable transmission system between the operating mechanism and the poles116US 4,764,650 AMerlin Gerin · 1988
- Multipole circuit breaker with single-pole units107US 5,281,776 AMerlin Gerin · 1994
- Anti-rebound latch for current limiting switches98US 4,144,513 AGould Inc. · 1979
- Contactor78US 6,700,466 B1Matsushita Electric Works, Ltd. · 2004