H01H 31/00
Air-break switches for high tension without arc-extinguishing or arc-preventing means
Official title: Air-break switches for high tension without arc-extinguishing or arc-preventing means (in combination with high tension or heavy-current switches with arc-extinguishing or arc-preventing means H01H33/00)
H01H31/00 (Air-break switches for high tension without arc-extinguishing or arc-preventing means) appears on 725 US grants and 570 published applications in this corpus.
Search patents in H01H- Granted patents
- 725
- Published applications
- 570
- Assignees
- 258
- Inventors
- 1,360
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 9 | 0 |
| 1978 | 13 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 10 | 0 |
| 1982 | 12 | 0 |
| 1983 | 6 | 0 |
| 1984 | 9 | 0 |
| 1985 | 13 | 0 |
| 1986 | 7 | 0 |
| 1987 | 13 | 0 |
| 1988 | 6 | 0 |
| 1989 | 10 | 0 |
| 1990 | 5 | 0 |
| 1991 | 6 | 0 |
| 1992 | 6 | 0 |
| 1993 | 9 | 0 |
| 1994 | 6 | 0 |
| 1995 | 6 | 0 |
| 1996 | 17 | 0 |
| 1997 | 9 | 0 |
| 1998 | 16 | 0 |
| 1999 | 9 | 0 |
| 2000 | 7 | 0 |
| 2001 | 7 | 5 |
| 2002 | 16 | 16 |
| 2003 | 20 | 15 |
| 2004 | 13 | 15 |
| 2005 | 14 | 17 |
| 2006 | 14 | 16 |
| 2007 | 14 | 17 |
| 2008 | 7 | 16 |
| 2009 | 11 | 28 |
| 2010 | 17 | 26 |
| 2011 | 21 | 18 |
| 2012 | 23 | 22 |
| 2013 | 21 | 32 |
| 2014 | 21 | 27 |
| 2015 | 34 | 19 |
| 2016 | 31 | 22 |
| 2017 | 17 | 30 |
| 2018 | 27 | 18 |
| 2019 | 22 | 19 |
| 2020 | 23 | 24 |
| 2021 | 26 | 29 |
| 2022 | 27 | 31 |
| 2023 | 22 | 29 |
| 2024 | 22 | 31 |
| 2025 | 29 | 35 |
| 2026 | 12 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H01H 31/02Details275
- H01H 31/003Earthing switches272
- H01H 31/26Air-break switches for high tension without arc-extinguishing or arc-preventing means: with movable207
- H01H 31/006Air-break switches for high tension without arc-extinguishing or arc-preventing means: adapted to69
- H01H 31/14Air-break switches for high tension without arc-extinguishing or arc-preventing means: with bridging41
- H01H 31/34Air-break switches for high tension without arc-extinguishing or arc-preventing means: with movable17
Recent patents
- Switch for a medium voltage or high voltage switchgear6 Oct 2026US 12,755,911 B2ABB Schweiz AG
- Power line protection coordination schemes using pivotable multi-fuse assemblies6 Oct 2026US 12,755,920 B2Saudi Arabian Oil Company
- Voltage transformer disconnect switch for utility metering sections of a medium voltage switchgear11 Aug 2026US 12,706,261 B2Iem New Sub 2 LLC
- Rapid safety switch and rapid safety switch system14 Jul 2026US 12,683,103 B2Siemens Aktiengesellschaft
- Apparatuses and methods for improved switchgear sensor data communication7 Jul 2026US 12,676,271 B2Hubbell Incorporated
- Apparatuses and methods for improved switchgear sensor data communication1 Oct 2026US 2026/0302107 A1Hubbell Incorporated
- Earth switching device17 Sep 2026US 2026/0279704 A1Hyosung Heavy Industries Corporation
- Torsion spring assembly for switching apparatus23 Jul 2026US 2026/0213097 A1Hitachi Energy Ltd
- System for protecting against short-circuits4 Jun 2026US 2026/0152072 A1Pyroalliance
- Manual operation assembly14 May 2026US 2026/0135048 A1
Most cited
By later US patents
- Method and apparatus for detecting and responding to downed conductors80US 5,341,265 AKearney-National, Inc. · 1994
- Isolating ground switch59US 9,728,354 B2Electric Motion Company, Inc. · 2017
- Pull-out high current switch54US 5,973,418 ACooper Technologies Company · 1999
- Gas insulated switchgear with grounding and disconnecting switches39US 5,796,060 AAsea Brown Boveri AG · 1998
- Mounting for an article which permits movement thereof between inaccessible and accessible positions32US 4,463,227 AS&C Electric Company · 1984