H01H 33/703
Having special gas flow directing elements
Official title: {having special gas flow directing elements, e.g. grooves, extensions}
H01H33/703 (Having special gas flow directing elements) appears on 36 US grants and 22 published applications in this corpus.
Search patents in H01H- Granted patents
- 36
- Published applications
- 22
- Assignees
- 25
- Inventors
- 108
- Latest grant
- 13 Jun 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 0 | 0 |
| 2013 | 1 | 2 |
| 2014 | 1 | 0 |
| 2015 | 3 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 0 |
| 2018 | 1 | 2 |
| 2019 | 2 | 3 |
| 2020 | 3 | 2 |
| 2021 | 3 | 4 |
| 2022 | 1 | 0 |
| 2023 | 1 | 0 |
| 2024 | 0 | 2 |
| 2025 | 0 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Gas-insulated switch13 Jun 2023US 11,676,785 B2Siemens Energy Global GmbH & Co. KG
- Nozzle for high or medium voltage circuit breaker29 Nov 2022US 11,515,110 B2Hitachi Energy Switzerland AG
- Motor-driven vacuum circuit breaker12 Oct 2021US 11,145,470 B2ABB Schweiz AG
- Circuit breaker and method of performing a current breaking operation21 Sep 2021US 11,127,551 B2ABB Power Grids Switzerland AG
- Gas-insulated low- or medium-voltage load break switch30 Mar 2021US 10,964,498 B2ABB Schweiz AG
- Circuit breaker23 Apr 2026US 2026/0112557 A1GE Infrastructure Technology LLC
- High voltage circuit-breaker having an optimized contacts design18 Dec 2025US 2025/0385059 A1GE Vernova Infrastructure Technology LLC
- Gas-insulated high or medium voltage circuit breaker21 Nov 2024US 2024/0387125 A1Hitachi Energy Ltd
- Gas circuit breaker5 Sep 2024US 2024/0297005 A1Kabushiki Kaisha Toshiba
- Gas-insulated switch14 Oct 2021US 2021/0319966 A1Siemens Aktiengesellschaft
Most cited
By later US patents
- Puffer piston gas blast circuit interrupter with insulating nozzle member13US 3,946,183 AWestinghouse Electric Corp. · 1976
- Downstream injection nozzle for puffer circuit interrupter8US 3,946,180 AI-T-E Imperial Corporation · 1976
- Puffer-type gas-blast circuit breaker7US 4,048,456 AGeneral Electric Company · 1977
- DC Circuit breaker7US 4,458,121 ATokyo Shibaura Denki Kabushiki Kaisha · 1984
- Arc extinguishing arrangement for gas blast type circuit breaker6US 4,161,636 ABBC Brown, Boveri & Company, Limited · 1979