H01H 71/322
With plunger type armature
Official title: {with plunger type armature}
H01H71/322 (With plunger type armature) appears on 51 US grants and 19 published applications in this corpus.
Search patents in H01H- Granted patents
- 51
- Published applications
- 19
- Assignees
- 31
- Inventors
- 116
- Latest grant
- 12 Nov 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 1 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 3 |
| 2010 | 2 | 0 |
| 2011 | 0 | 2 |
| 2012 | 1 | 1 |
| 2013 | 1 | 2 |
| 2014 | 2 | 1 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 1 |
| 2019 | 2 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 1 |
| 2022 | 1 | 2 |
| 2023 | 0 | 0 |
| 2024 | 2 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Levitation fuse device12 Nov 2024US 12,142,444 B2Gigavac, LLC
- Smart circuit interrupter accessories internal component diagnostics7 May 2024US 11,978,607 B2Eaton Intelligent Power Limited
- Electromagnetic actuator and electrical switching unit including this actuator15 Nov 2022US 11,501,940 B2Schneider Electric Industries SAS
- Switching device comprising a resetting device27 Aug 2019US 10,395,864 B2Schneider Electric Industries SAS
- High-speed circuit breaking array for breaking a current path in a switching device26 Feb 2019US 10,217,589 B2Eaton Intelligent Power Limited
- Actuator for a Circuit Breaker in a Switchgear15 Jan 2026US 2026/0018359 A1ABB Schweiz AG
- Smart circuit interrupter accessories internal component diagnostics22 Sep 2022US 2022/0301801 A1Eaton Intelligent Power Limited
- Levitation fuse device27 Jan 2022US 2022/0028639 A1Gigavac, LLC
- Leakage current protection device employing a pivoting actuator in the trip assembly22 Jul 2021US 2021/0225606 A1
- Electromagnetic actuator and electrical switching unit including this actuator6 Feb 2020US 2020/0043688 A1Schneider Electric Industries SAS
Most cited
By later US patents
- Circuit breaker99US 5,581,219 AFuji Electric Co., Ltd. · 1996
- Resettable switching device35US 6,975,191 B2Tripco Limited · 2005
- Adjustable flux transfer shunt trip actuator and electric power switch incorporating same34US 6,218,921 B1Eaton Corporation · 2001
- Tripping device reset arrangement31US 5,670,923 AGeneral Electric Company · 1997
- Magnetic flux shifting ground fault trip indicator30US 4,157,520 AWestinghouse Electric Corp. · 1979