H01H 33/903
And assisting the operating mechanism
Official title: {and assisting the operating mechanism}
H01H33/903 (And assisting the operating mechanism) appears on 36 US grants and 13 published applications in this corpus.
Search patents in H01H- Granted patents
- 36
- Published applications
- 13
- Assignees
- 19
- Inventors
- 66
- Latest grant
- 18 Jan 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 5 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 2 |
| 2015 | 0 | 2 |
| 2016 | 3 | 1 |
| 2017 | 0 | 0 |
| 2018 | 2 | 1 |
| 2019 | 2 | 1 |
| 2020 | 0 | 2 |
| 2021 | 2 | 1 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Gas circuit breaker18 Jan 2022US 11,227,735 B2Kabushiki KaishaToshiba
- Gas-blast circuit breaker27 Apr 2021US 10,991,529 B2Hitachi, Ltd.
- Gas circuit breaker9 Feb 2021US 10,916,394 B2Hitachi, Ltd.
- Switch27 Aug 2019US 10,395,855 B2Mitsubishi Electric Corporation
- Circuit breaker containing a gas escape hood with sealable opening16 Apr 2019US 10,262,813 B2General Electric Technology GmbH
- High voltage circuit-breaker30 Apr 2026US 2026/0120986 A1Hitachi Energy Ltd
- Gas circuit breaker15 Jul 2021US 2021/0217568 A1Kabushiki Kaisha Toshiba
- Gas-Blast Circuit Breaker3 Sep 2020US 2020/0279704 A1Hitachi, Ltd.
- Gas Circuit Breaker3 Sep 2020US 2020/0279705 A1Hitachi, Ltd.
- Switch11 Apr 2019US 2019/0108950 A1Mitsubishi Electric Corporation
Most cited
By later US patents
- High-voltage power switch13US 4,486,632 ABBC Brown, Boveri & Company, Limited · 1984
- Compressed gas, high tension circuit breaker, with operating energy assisted by the thermal effect of the arc11US 4,650,941 AAlsthom · 1987
- High tension circuit-breaker having a dielectric gas under pressure11US 5,001,314 AGEC Alsthom SA · 1991
- Electric circuit breaker assembly10US 3,985,988 ABBC Aktiengesellschaft Brown, Boveri & Cie · 1976
- Compressed dielectric gas circuit breaker9US 4,774,388 AAlsthom · 1988