H01H 33/187
Comprising a hollow annular arc runner and a central contact between which
Official title: {comprising a hollow annular arc runner and a central contact between which a radially drawn arc rotates}
H01H33/187 (Comprising a hollow annular arc runner and a central contact between which) appears on 18 US grants and 4 published applications in this corpus.
Search patents in H01H- Granted patents
- 18
- Published applications
- 4
- Assignees
- 10
- Inventors
- 35
- Latest grant
- 18 Jul 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Switching device and switching arrangement18 Jul 2023US 11,705,289 B2Eaton Intelligent Power Limited
- Gas-insulated switchgear4 Nov 2014US 8,878,092 B2Mitsubishi Electric Corporation
- Rotating arc fault-current interrupter13 Sep 2005US 6,943,313 B2S&C Electric Company
- Circuit breaker magnetic blowout arc extinguishing device with arc runner features23 Jun 1998US 5,770,827 ATogami Electric Mfg. Co., Ltd.
- Rotating arc interrupter for loadbreak switch7 Nov 1995US 5,464,956 AS&C Electric Company
- Switching device and switching arrangement2 Sep 2021US 2021/0272758 A1Eaton Intelligent Power Limited
- Gas-insulated switchgear15 Mar 2012US 2012/0061352 A1Mitsubishi Electric Corporation
- Rotating arc fault-current interrupter15 Apr 2004US 2004/0069749 A1S&C Electric Company
- Contact arc-quenching system for power switchgear18 Oct 2001US 2001/0030173 A1
Most cited
By later US patents
- Arc interrupter12US 4,503,302 ANorthern Engineering Industries plc · 1985
- Arc interrupter11US 4,980,528 ANorthern Engineering Industries plc · 1990
- Electrical switchgear7US 4,301,341 ASouth Wales Switchgear Limited · 1981
- Electrical switchgear of the rotating arc, double-break type6US 4,355,220 ASouth Wales Switchgear Limited · 1982
- Electrical switchgear6US 4,445,017 ABrush Switchgear Limited · 1984