H01H 33/76
Wherein arc-extinguishing gas is evolved from stationary parts
Official title: wherein arc-extinguishing gas is evolved from stationary parts; Selection of material therefor
H01H33/76 (Wherein arc-extinguishing gas is evolved from stationary parts) appears on 75 US grants and 44 published applications in this corpus.
Search patents in H01H- Granted patents
- 75
- Published applications
- 44
- Assignees
- 47
- Inventors
- 181
- Latest grant
- 17 Jan 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 1 |
| 2005 | 2 | 2 |
| 2006 | 0 | 2 |
| 2007 | 1 | 2 |
| 2008 | 0 | 3 |
| 2009 | 1 | 2 |
| 2010 | 1 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 2 |
| 2013 | 0 | 3 |
| 2014 | 2 | 3 |
| 2015 | 2 | 6 |
| 2016 | 6 | 1 |
| 2017 | 0 | 2 |
| 2018 | 6 | 4 |
| 2019 | 1 | 1 |
| 2020 | 1 | 2 |
| 2021 | 3 | 4 |
| 2022 | 4 | 1 |
| 2023 | 1 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Switching device17 Jan 2023US 11,557,448 B2TDK Electronics Co., Ltd.
- Contact device29 Nov 2022US 11,515,113 B2OMRON Corporation
- Electric arc-blast nozzle made of a material comprising micro-capsules of liquid (CF3)2CFCN and a circuit breaker including such a nozzle4 Oct 2022US 11,462,377 B2General Electric Technology GmbH
- Insulating molded body and gas circuit breaker3 May 2022US 11,322,322 B2Mitsubishi Electric Corporation
- Circuit interrupter1 Mar 2022US 11,264,192 B2Panasonic Intellectual Property Management Co., Ltd.
- Electric switch and electric switch assembly30 Jul 2026US 2026/0221358 A1
- Switching device6 Jun 2024US 2024/0186089 A1Mitsubishi Electric Corporation
- Contact device16 Jun 2022US 2022/0189720 A1OMRON Corporation
- An electric arc-blast nozzle made of a material comprising micro-capsules of liquid (cf3)2cfcn and a circuit breaker including such a nozzle23 Dec 2021US 2021/0398762 A1General Electric Technology GmbH
- Switching Device20 May 2021US 2021/0151269 A1TDK Electronics Co., Ltd.
Most cited
By later US patents
- Contactor78US 6,700,466 B1Matsushita Electric Works, Ltd. · 2004
- Grounded surface distribution apparatus42US 4,029,380 AJoslyn Mfg. and Supply Co. · 1977
- Arc-extinguishing composition and articles manufactured therefrom38US 4,975,551 AS&C Electric Company · 1990
- Grounded surface distribution apparatus35US 3,949,343 AJoslyn Mfg. and Supply Co. · 1976
- Electric circuit breaker arc chute composition22US 4,950,852 AGeneral Electric Company · 1990