H01H 33/021
Use of solid insulating compounds resistant to the contacting fluid dielectrics and
Official title: {Use of solid insulating compounds resistant to the contacting fluid dielectrics and their decomposition products, e.g. to SF6}
H01H33/021 (Use of solid insulating compounds resistant to the contacting fluid dielectrics and) appears on 29 US grants and 17 published applications in this corpus.
Search patents in H01H- Granted patents
- 29
- Published applications
- 17
- Assignees
- 19
- Inventors
- 76
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 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 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 0 | 0 |
| 2013 | 2 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 1 |
| 2017 | 0 | 1 |
| 2018 | 3 | 3 |
| 2019 | 3 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 1 | 0 |
| 2023 | 0 | 3 |
| 2024 | 1 | 1 |
| 2025 | 1 | 0 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- SF6 free gas insulated disconnector with limited arcing volume29 Sep 2026US 12,749,638 B2GE Vernova Infrastructure Technology LLC
- 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
- Insulated earthing switch for an air insulated or mixed switchgear9 Sep 2025US 12,413,053 B2GE Vernova Infrastructure Technology LLC
- Circuit breaker with simplified non-linear double motion9 Jul 2024US 12,033,817 B2General Electric Technology GmnH
- Electric interruption switch comprising reactive coating in the reaction chamber6 Sep 2022US 11,437,210 B2
- Disconnector contact system with controlled discharge23 Apr 2026US 2026/0112551 A1Hitachi Energy Ltd
- Sf6 free gas insulated disconnector with limited arcing volume1 Aug 2024US 2024/0258049 A1General Electric Technology GmbH
- Insulated earthing switch for an air insulated or mixed switchgear7 Dec 2023US 2023/0396043 A1General Electric Company
- High-voltage device and method for increasing the dielectric strength in the high-voltage device16 Nov 2023US 2023/0368989 A1Siemens Energy Global GmbH & Co. KG
- Circuit breaker with simplified non-linear double motion5 Jan 2023US 2023/0005675 A1General Electric Technology GmbH
Most cited
By later US patents
- Relay assembly40US 4,168,480 ATorr Laboratories, Inc. · 1979
- Fiberglass reinforced plastic insulating member submitted to mechanical efforts within a high-voltage switching enclosure containing sulphur-hexafluoride gas18US 4,375,527 ASprecher & Schuh AG · 1983
- Hybrid circuit breaker18US 4,458,119 ATokyo Shibaura Denki Kabushiki Kaisha · 1984
- Alumina-thickened cycloaliphatic epoxy materials for use in atmospheres of arced sulfur hexafluoride and articles thereof17US 4,102,851 AWestinghouse Electric Corp. · 1978
- SF.sub.6 Gas arc extinguishing electric apparatus and process for producing the same16US 4,562,322 AHitachi, Ltd. · 1985