H01H 31/26
Air-break switches for high tension without arc-extinguishing or arc-preventing means: with movable
Official title: with movable contact that remains electrically connected to one line in open position of switch
H01H31/26 (Air-break switches for high tension without arc-extinguishing or arc-preventing means: with movable) appears on 207 US grants and 170 published applications in this corpus.
Search patents in H01H- Granted patents
- 207
- Published applications
- 170
- Assignees
- 96
- Inventors
- 435
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 3 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 6 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 6 | 0 |
| 1986 | 2 | 0 |
| 1987 | 6 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 3 |
| 2003 | 4 | 1 |
| 2004 | 1 | 1 |
| 2005 | 2 | 0 |
| 2006 | 3 | 7 |
| 2007 | 3 | 1 |
| 2008 | 2 | 5 |
| 2009 | 3 | 7 |
| 2010 | 5 | 7 |
| 2011 | 4 | 3 |
| 2012 | 5 | 6 |
| 2013 | 8 | 12 |
| 2014 | 7 | 8 |
| 2015 | 8 | 3 |
| 2016 | 7 | 7 |
| 2017 | 6 | 12 |
| 2018 | 15 | 10 |
| 2019 | 8 | 5 |
| 2020 | 4 | 7 |
| 2021 | 10 | 12 |
| 2022 | 10 | 13 |
| 2023 | 7 | 11 |
| 2024 | 7 | 11 |
| 2025 | 10 | 14 |
| 2026 | 4 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Switch for a medium voltage or high voltage switchgear6 Oct 2026US 12,755,911 B2ABB Schweiz AG
- Voltage transformer disconnect switch for utility metering sections of a medium voltage switchgear11 Aug 2026US 12,706,261 B2Iem New Sub 2 LLC
- Switchgear2 Jun 2026US 12,646,909 B2ABB Schweiz AG
- Conductor latch for in-line disconnect switch24 Mar 2026US 12,586,742 B2Hubbell Incorporated
- Medium voltage switchgear disconnector system14 Oct 2025US 12,444,912 B2ABB Schweiz AG
- Torsion spring assembly for switching apparatus23 Jul 2026US 2026/0213097 A1Hitachi Energy Ltd
- Vertical break disconnector14 May 2026US 2026/0135051 A1Hitachi Energy Ltd
- Visual indicator for an electrical assembly16 Apr 2026US 2026/0104278 A1GE Vernova Infrastructure Technology LLC
- Low and medium voltage electrical pole5 Mar 2026US 2026/0066198 A1
- Rail Vehicle Roof with Electric Roof Equipment, and Rail Vehicle16 Oct 2025US 2025/0319775 A1Siemens Mobility Austria GmbH
Most cited
By later US patents
- Switchgear assembly for electrical apparatus32US 4,688,013 AMitsubishi Denki Kabushiki Kaisha · 1987
- Sectionalizer with externally mounted electronic controller23US 4,935,715 AA. B. Chance Company · 1990
- Resistor-type disconnecting switch for circuit breaker21US 4,500,762 AMitsubishi Denki Kabushiki Kaisha · 1985
- Electrical switchgear18US 4,513,208 ATokyo Shibaura Denki Kabushiki Kaisha · 1985
- Disconnect switch16US 4,413,166 AWestinghouse Electric Corp. · 1983