H01H 31/14
Air-break switches for high tension without arc-extinguishing or arc-preventing means: with bridging
Official title: with bridging contact that is not electrically connected to either line contact in open position of switch
H01H31/14 (Air-break switches for high tension without arc-extinguishing or arc-preventing means: with bridging) appears on 41 US grants and 39 published applications in this corpus.
Search patents in H01H- Granted patents
- 41
- Published applications
- 39
- Assignees
- 38
- Inventors
- 104
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 2 | 2 |
| 2009 | 0 | 1 |
| 2010 | 2 | 1 |
| 2011 | 0 | 2 |
| 2012 | 1 | 1 |
| 2013 | 3 | 3 |
| 2014 | 3 | 4 |
| 2015 | 6 | 5 |
| 2016 | 3 | 1 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 2 | 4 |
| 2021 | 4 | 2 |
| 2022 | 3 | 1 |
| 2023 | 0 | 4 |
| 2024 | 0 | 0 |
| 2025 | 2 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Voltage transformer disconnect switch for utility metering sections of a medium voltage switchgear11 Aug 2026US 12,706,261 B2Iem New Sub 2 LLC
- 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
- Switch and changeover switch with compact structure22 Nov 2022US 11,508,534 B2Microelettrica Scientifica S.P.A.
- Isolator switch and drive apparatus for an isolator switch27 Sep 2022US 11,456,124 B2Siemens Energy Global GmbH & Co. KG
- Mobile contact for a switching device12 Feb 2026US 2026/0045425 A1Schneider Electric Industries SAS
- Switch arrangement4 Sep 2025US 2025/0279250 A1
- Voltage Transformer Disconnect Switch For Utility Metering Sections Of A Medium Voltage Switchgear21 Aug 2025US 2025/0266222 A1Iem New Sub 2 LLC
- System and method for determining a position of a movable arm of a high voltage disconnecting switch21 Dec 2023US 2023/0408701 A1Weinert Industries AG
- Dc disconnector16 Nov 2023US 2023/0368987 A1
Most cited
By later US patents
- Twin break transfer switch29US 4,791,255 AWestinghouse Electric Corp. · 1988
- Apparatus, system and methods for deadfront visible loadbreak26US 7,384,287 B2Cooper Technologies Company · 2008
- Double side air break disconnecting switch15US 4,112,268 AH. K. Porter Company, Inc. · 1978
- Three-position electrical switch having a switching element that is movable in axial translation11US 6,559,403 B2Alstom · 2003
- Power source circuit shut off device11US 8,379,375 B2Yazaki Corporation · 2013