H01H 2033/566
Avoiding the use of sf6
Official title: {Avoiding the use of SF6}
H01H2033/566 (Avoiding the use of sf6) appears on 89 US grants and 117 published applications in this corpus.
Search patents in H01H- Granted patents
- 89
- Published applications
- 117
- Assignees
- 50
- Inventors
- 285
- Latest grant
- 27 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 4 |
| 2002 | 7 | 7 |
| 2003 | 2 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 2 |
| 2006 | 0 | 4 |
| 2007 | 5 | 2 |
| 2008 | 0 | 0 |
| 2009 | 1 | 2 |
| 2010 | 2 | 4 |
| 2011 | 1 | 4 |
| 2012 | 4 | 3 |
| 2013 | 1 | 3 |
| 2014 | 5 | 9 |
| 2015 | 2 | 2 |
| 2016 | 6 | 3 |
| 2017 | 2 | 3 |
| 2018 | 2 | 7 |
| 2019 | 4 | 7 |
| 2020 | 7 | 7 |
| 2021 | 9 | 5 |
| 2022 | 4 | 9 |
| 2023 | 6 | 9 |
| 2024 | 4 | 11 |
| 2025 | 8 | 5 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Electrical apparatus, filing apparatus and storage apparatus27 Jan 2026US 12,537,151 B2AGC Inc.
- High-voltage device and method for increasing the dielectric strength in the high-voltage device20 Jan 2026US 12,531,194 B2Siemens Energy Global GmbH & Co. KG
- Electrical switching device25 Nov 2025US 12,482,618 B2Hitachi Energy Ltd
- Earthing switch18 Nov 2025US 12,476,055 B2Hyundai Electric & Energy Systems Co., Ltd.
- Power device comprising an insulation gas for use in an electric energy power arrangement21 Oct 2025US 12,451,674 B2Hitachi Energy Ltd
- Method for distributing a mixture in a gaseous state30 Jul 2026US 2026/0218856 A1Air Liquide Electronics Systems
- Circuit breaker device28 May 2026US 2026/0148916 A1Kabushiki Kaisha Toshiba
- Gas insulated electric apparatus23 Apr 2026US 2026/0112867 A1Hitachi Energy Ltd
- Insulating gas used for electrical insulation or arc extinguishing by replacing sf6 gas and electrical device using same5 Feb 2026US 2026/0038709 A1Korea Electro Technology Research Institute
- High voltage circuit-breaker having an optimized contacts design18 Dec 2025US 2025/0385059 A1GE Vernova Infrastructure Technology LLC
Most cited
By later US patents
- Subsea switchgear95US 9,450,385 B2Siemens Aktiengesellschaft · 2016
- Gas insulated switchgear23US 7,816,618 B2Kabushiki Kaisha Toshiba · 2010
- Vacuum switch and vacuum switch gear using the vacuum switch22US 6,335,502 B12002
- Switch gear and method of manufacturing thereof19US 6,897,396 B2Kabushiki Kaisha Toshiba · 2005
- High-voltage interrupter device having combined vacuum and gas interruption16US 6,593,538 B2Alstom · 2003