H01H 33/905
The compression volume being formed by a movable cylinder and a semi-mobile
Official title: {the compression volume being formed by a movable cylinder and a semi-mobile piston}
H01H33/905 (The compression volume being formed by a movable cylinder and a semi-mobile) appears on 45 US grants and 21 published applications in this corpus.
Search patents in H01H- Granted patents
- 45
- Published applications
- 21
- Assignees
- 29
- Inventors
- 88
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 1 |
| 2002 | 2 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 0 | 1 |
| 2010 | 1 | 1 |
| 2011 | 2 | 1 |
| 2012 | 1 | 1 |
| 2013 | 0 | 0 |
| 2014 | 2 | 2 |
| 2015 | 2 | 3 |
| 2016 | 2 | 0 |
| 2017 | 0 | 1 |
| 2018 | 1 | 2 |
| 2019 | 0 | 0 |
| 2020 | 1 | 1 |
| 2021 | 1 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Circuit breaker comprising an improved gas flow management9 Jun 2026US 12,651,716 B2GE Vernova Infrastructure Technology LLC
- Gas-insulated switch13 Jun 2023US 11,676,785 B2Siemens Energy Global GmbH & Co. KG
- Electric switch provided with an arc-blasting unit20 Apr 2021US 10,984,973 B2General Electric Technology GmbH
- Circuit breaker comprising an improved compression chamber25 Aug 2020US 10,755,879 B2General Electric Technology GmbH
- Gas circuit breaker30 Oct 2018US 10,115,548 B2Mitsubishi Electric Corporation
- Electric arc blast nozzel20 Aug 2026US 2026/0245817 A1GE Vernova Infrastructure Technology LLC
- High voltage circuit-breaker30 Apr 2026US 2026/0120986 A1Hitachi Energy Ltd
- Circuit breaker comprising an improved gas flow management8 Aug 2024US 2024/0266129 A1General Electric Technology GmbH
- Gas-insulated switch14 Oct 2021US 2021/0319966 A1Siemens Aktiengesellschaft
- Electric switch provided with an arc-blasting unit21 May 2020US 2020/0161066 A1General Electric Technology GmbH
Most cited
By later US patents
- Energy efficient floating head puffer interrupter26US 4,445,018 AMcGraw-Edison Company · 1984
- Circuit breaker with triple movement for high or medium voltages14US 5,293,014 AGEC Alsthom SA · 1994
- Compressed gas-blast circuit breaker12US 5,561,280 AGEC Alsthom T & D SA · 1996
- Switching mechanism of circuit breaker for gas insulted switchgear12US 6,787,725 B2LG Industrial Systems Co., Ltd. · 2004
- Power circuit-breaker11US 5,898,149 AAsea Brown Boveri AG · 1999