H01H 33/122
Both breaker and sectionaliser being enclosed
Official title: {both breaker and sectionaliser being enclosed, e.g. in SF6-filled container}
H01H33/122 (Both breaker and sectionaliser being enclosed) appears on 57 US grants and 40 published applications in this corpus.
Search patents in H01H- Granted patents
- 57
- Published applications
- 40
- Assignees
- 33
- Inventors
- 132
- Latest grant
- 14 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 2 |
| 2005 | 1 | 1 |
| 2006 | 1 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 2 |
| 2010 | 1 | 0 |
| 2011 | 1 | 1 |
| 2012 | 0 | 1 |
| 2013 | 2 | 1 |
| 2014 | 1 | 1 |
| 2015 | 1 | 6 |
| 2016 | 3 | 1 |
| 2017 | 0 | 1 |
| 2018 | 1 | 3 |
| 2019 | 5 | 0 |
| 2020 | 2 | 6 |
| 2021 | 5 | 1 |
| 2022 | 0 | 5 |
| 2023 | 4 | 3 |
| 2024 | 1 | 1 |
| 2025 | 3 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Medium voltage switching apparatus14 Oct 2025US 12,444,559 B2ABB AB
- Method for assembling a switching apparatus for medium voltage electric systems15 Jul 2025US 12,362,116 B2ABB Schweiz AG
- Device for thermionic arc extinction via anode ion depletion8 Jul 2025US 12,354,824 B2Stacom Engineering Company
- Solid dielectric insulated switchgear10 Sep 2024US 12,087,523 B2G & W Electric Company
- Medium voltage switching apparatus1 Aug 2023US 11,715,613 B2ABB Schweiz AG
- Device for thermionic arc extinction via anode ion depletion25 Dec 2025US 2025/0391618 A1Stacom Engineering Company
- Medium voltage switching apparatus4 Dec 2025US 2025/0372324 A1ABB Schweiz AG
- Solid dielectric insulated switchgear26 Dec 2024US 2024/0429006 A1G & W Electric Company
- Method for assembling a switching apparatus for medium voltage electric systems16 Nov 2023US 2023/0368994 A1ABB Schweiz AG
- Medium voltage switching apparatus16 Nov 2023US 2023/0368995 A1ABB AB
Most cited
By later US patents
- Hybrid medium voltage circuit breaker98US 5,155,315 AMerlin Gerin · 1992
- Electrical circuit breaker with two vacuum cartridges in series98US 5,347,096 AMerlin Gerin · 1994
- Hybrid circuit breaker with axial blowout coil87US 5,280,144 AMerlin Gerin · 1994
- Medium voltage circuit breaker with operating mechanism providing reduced operating energy85US 5,239,150 AMerlin Gerin · 1993
- Switchgear module and configurations, and method of fabrication and assembly thereof32US 5,521,567 AS&C Electric Company · 1996