H01H 33/565
Gas-tight sealings for moving parts penetrating into the reservoir
Official title: {Gas-tight sealings for moving parts penetrating into the reservoir}
H01H33/565 (Gas-tight sealings for moving parts penetrating into the reservoir) appears on 46 US grants and 42 published applications in this corpus.
Search patents in H01H- Granted patents
- 46
- Published applications
- 42
- Assignees
- 36
- Inventors
- 137
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 1 |
| 2006 | 1 | 2 |
| 2007 | 0 | 0 |
| 2008 | 2 | 1 |
| 2009 | 1 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 3 |
| 2014 | 0 | 3 |
| 2015 | 3 | 2 |
| 2016 | 1 | 0 |
| 2017 | 1 | 4 |
| 2018 | 4 | 4 |
| 2019 | 5 | 2 |
| 2020 | 1 | 2 |
| 2021 | 4 | 6 |
| 2022 | 3 | 3 |
| 2023 | 1 | 1 |
| 2024 | 2 | 0 |
| 2025 | 2 | 4 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Compression sealing gasket and sealing system5 May 2026US 12,618,472 B2GE Vernova Infrastructure Technology LLC
- Contactor and general switching device comprised thereof9 Dec 2025US 12,494,332 B2
- Insulated earthing switch for an air insulated or mixed switchgear9 Sep 2025US 12,413,053 B2GE Vernova Infrastructure Technology LLC
- Gas insulating device with anti-liquification means28 May 2024US 11,996,251 B2GE Infrastructure Technology LLC
- High voltage electric power switch with carbon arcing electrodes and carbon dioxide dielectric gas16 Jan 2024US 11,875,957 B2Southern States, LLC
- Vacuum circuit breaker6 Aug 2026US 2026/0229431 A1Hd Hyundai Electric Co., Ltd.
- High voltage circuit-breaker30 Apr 2026US 2026/0120987 A1Hitachi Energy Ltd
- Vacuum circuit breaker25 Dec 2025US 2025/0391621 A1Hyosung Heavy Industries Corporation
- Improved compression sealing gasket and sealing system2 Oct 2025US 2025/0305584 A1GE Infrastructure Technology LLC
- Contactor27 Mar 2025US 2025/0104943 A1
Most cited
By later US patents
- Recloser means for reclosing interrupted high voltage electric circuit means66US 5,175,403 ACooper Power Systems, Inc. · 1992
- Diaphragm seal for a high voltage switch environment48US 5,667,060 AAmerace Corporation · 1997
- Gas-insulated switchgear including a vacuum switch, operating mechanism and plural bellows33US 5,191,180 AFuji Electric Co., Ltd. · 1993
- High current switch and method of operation16US 7,397,012 B2Thomas & Betts International, Inc. · 2008
- Enclosed switchgear13US 6,927,356 B2Mitsubishi Denki Kabushiki Kaisha · 2005