H01H 33/74
Wherein the break is in gas
Official title: wherein the break is in gas (in air at atmospheric pressure H01H33/73)
H01H33/74 (Wherein the break is in gas) appears on 45 US grants and 53 published applications in this corpus.
Search patents in H01H- Granted patents
- 45
- Published applications
- 53
- Assignees
- 28
- Inventors
- 138
- Latest grant
- 26 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 2 |
| 2009 | 0 | 2 |
| 2010 | 0 | 2 |
| 2011 | 2 | 1 |
| 2012 | 1 | 2 |
| 2013 | 3 | 0 |
| 2014 | 2 | 2 |
| 2015 | 0 | 4 |
| 2016 | 4 | 9 |
| 2017 | 6 | 6 |
| 2018 | 7 | 3 |
| 2019 | 4 | 6 |
| 2020 | 5 | 4 |
| 2021 | 2 | 2 |
| 2022 | 3 | 0 |
| 2023 | 0 | 3 |
| 2024 | 1 | 2 |
| 2025 | 3 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- High voltage circuit-breaker26 Aug 2025US 12,400,816 B2Hitachi Energy Ltd
- Circuit breaker comprising an improved gas flow management1 Jul 2025US 12,347,634 B2GE Vernova Infrastructure Technology LLC
- Air circuit breaker14 Jan 2025US 12,198,879 B2Ls Electric Co., Ltd.
- Interrupter unit for a circuit breaker2 Jan 2024US 11,862,420 B2Siemens Energy Global GmbH & Co. KG
- Nozzle for high or medium voltage circuit breaker29 Nov 2022US 11,515,110 B2Hitachi Energy Switzerland AG
- High voltage circuit-breaker having an optimized contacts design18 Dec 2025US 2025/0385059 A1GE Vernova Infrastructure Technology LLC
- Metal enclosed circuit breaker12 Jun 2025US 2025/0191862 A1Hitachi Energy Ltd
- Gas-insulated high or medium voltage circuit breaker21 Nov 2024US 2024/0387125 A1Hitachi Energy Ltd
- Switching device6 Jun 2024US 2024/0186089 A1Mitsubishi Electric Corporation
- Circuit breaker comprising an improved gas flow management30 Nov 2023US 2023/0386771 A1General Electric Technology GmbH
Most cited
By later US patents
- High-voltage circuit breaker with improved circuit breaker rating20US 8,389,886 B2ABB Technology AG · 2013
- Generator circuit breaker with improved switching capacity11US 7,893,379 B2ABB Technology AG · 2011
- Gas circuit breaker10US 5,850,065 AHitachi, Ltd. · 1998
- High-voltage circuit breaker9US 8,779,316 B2Alstom Grid · 2014
- Electrical switching device9US 9,899,167 B2ABB Schweiz AG · 2018