H01H 1/385
Contact arrangements for high voltage gas blast circuit breakers
Official title: {Contact arrangements for high voltage gas blast circuit breakers}
H01H1/385 (Contact arrangements for high voltage gas blast circuit breakers) appears on 105 US grants and 80 published applications in this corpus.
Search patents in H01H- Granted patents
- 105
- Published applications
- 80
- Assignees
- 58
- Inventors
- 295
- Latest grant
- 27 Feb 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 6 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 4 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 1 |
| 2002 | 0 | 0 |
| 2003 | 2 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 4 |
| 2007 | 1 | 3 |
| 2008 | 1 | 2 |
| 2009 | 1 | 3 |
| 2010 | 4 | 0 |
| 2011 | 1 | 4 |
| 2012 | 3 | 6 |
| 2013 | 2 | 5 |
| 2014 | 7 | 7 |
| 2015 | 0 | 6 |
| 2016 | 6 | 7 |
| 2017 | 7 | 5 |
| 2018 | 5 | 0 |
| 2019 | 3 | 5 |
| 2020 | 3 | 6 |
| 2021 | 5 | 5 |
| 2022 | 6 | 2 |
| 2023 | 0 | 1 |
| 2024 | 2 | 3 |
| 2025 | 0 | 2 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hybrid current path for circuit breakers27 Feb 2024US 11,915,888 B2Hitachi Energy Ltd
- High voltage electric power switch with carbon arcing electrodes and carbon dioxide dielectric gas16 Jan 2024US 11,875,957 B2Southern States, LLC
- Arrangement and method for switching high currents in high-, medium- and/or low-voltage engineering16 Aug 2022US 11,417,479 B2Siemens Energy Global GmbH & Co. KG
- High voltage electric power switch with carbon arcing electrodes and carbon dioxide dielectric gas5 Jul 2022US 11,380,501 B2Southern States, LLC
- Gas-insulated high or medium voltage circuit breaker28 Jun 2022US 11,373,824 B2Hitachi Energy Switzerland AG
- High voltage circuit-breaker30 Apr 2026US 2026/0120987 A1Hitachi Energy Ltd
- Circuit breaker23 Apr 2026US 2026/0112557 A1GE Infrastructure Technology LLC
- Hv/mv switch contacts arrangement24 Apr 2025US 2025/0132105 A1
- Switching device for conducting high continuous currents and very high short-circuit currents20 Mar 2025US 2025/0095927 A1Schaltbau GmbH
- Fast earthing switch implementing the coanda effect15 Aug 2024US 2024/0274384 A1General Electric Technology GmbH
Most cited
By later US patents
- Separable electrodes with electric arc quenching means56US 5,213,517 AG & H Technology, Inc. · 1993
- Female contact, in particular for a high tension section switch47US 5,468,164 AGEC Alsthom T & D SA · 1995
- Electrical contact for use in a current interrupting unit23US 4,491,708 AS&C Electric Company · 1985
- SF6 puffer recloser19US 5,059,753 ACooper Industries, Inc. · 1991
- Load break switch17US 4,663,504 ARaychem Corporation · 1987