H01H 33/08
Stationary parts for restricting or subdividing the arc
Official title: Stationary parts for restricting or subdividing the arc, e.g. barrier plate
H01H33/08 (Stationary parts for restricting or subdividing the arc) appears on 136 US grants and 145 published applications in this corpus.
Search patents in H01H- Granted patents
- 136
- Published applications
- 145
- Assignees
- 60
- Inventors
- 343
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 7 |
| 2014 | 3 | 12 |
| 2015 | 5 | 18 |
| 2016 | 20 | 18 |
| 2017 | 18 | 15 |
| 2018 | 14 | 10 |
| 2019 | 16 | 12 |
| 2020 | 14 | 7 |
| 2021 | 9 | 6 |
| 2022 | 3 | 6 |
| 2023 | 10 | 6 |
| 2024 | 2 | 9 |
| 2025 | 4 | 6 |
| 2026 | 6 | 8 |
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.
- Low-voltage switch pole30 Jun 2026US 12,671,044 B2ABB AB
- Breaker unit and air circuit breaker comprising same21 Apr 2026US 12,609,255 B2Ls Electric Co., Ltd.
- Arc chute and load switch comprising same17 Feb 2026US 12,555,727 B2Ls Electric Co., Ltd.
- Arc chute and load break switch including same17 Feb 2026US 12,555,728 B2Ls Electric Co., Ltd.
- Contact assembly of breaking device and dual-power transfer switch10 Sep 2026US 2026/0269158 A1
- Hermetically sealed high voltage contactor with improved arc quenching3 Sep 2026US 2026/0260830 A1Rincon Power, LLC
- Circuit breaker, power converter, energy storage system, and electric vehicle6 Aug 2026US 2026/0229429 A1Huawei Digital Power Technologies Co., Ltd.
- Electric switch and electric switch assembly30 Jul 2026US 2026/0221358 A1
- A cassette casing unit of a moulded case circuit breaker (mccb)23 Jul 2026US 2026/0213099 A1Havells India Limited
Most cited
By later US patents
- Single pole, single current path switching system and method31US 10,361,051 B2Rockwell Automation Technologies, Inc. · 2019
- Medium to high voltage load circuit interrupters including metal resistors having a positive temperature coefficient of resistivity (PTC elements)16US 6,072,673 ASquare D Company · 2000
- Insulated type switching device13US 5,719,365 AHitachi, Ltd. · 1998
- Electromagnetic arc extinction apparatus for switchgear12US 4,295,021 A1981
- DC switching device12US 8,502,102 B2ABB Research Ltd. · 2013