H01H 71/2454
Characterised by the magnetic circuit or active magnetic elements
Official title: {characterised by the magnetic circuit or active magnetic elements}
H01H71/2454 (Characterised by the magnetic circuit or active magnetic elements) appears on 88 US grants and 61 published applications in this corpus.
Search patents in H01H- Granted patents
- 88
- Published applications
- 61
- Assignees
- 59
- Inventors
- 206
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 1 |
| 2002 | 1 | 1 |
| 2003 | 1 | 2 |
| 2004 | 1 | 0 |
| 2005 | 2 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 3 |
| 2009 | 1 | 4 |
| 2010 | 1 | 3 |
| 2011 | 1 | 3 |
| 2012 | 3 | 3 |
| 2013 | 6 | 4 |
| 2014 | 4 | 4 |
| 2015 | 2 | 3 |
| 2016 | 3 | 1 |
| 2017 | 3 | 2 |
| 2018 | 1 | 3 |
| 2019 | 3 | 3 |
| 2020 | 2 | 7 |
| 2021 | 3 | 0 |
| 2022 | 5 | 3 |
| 2023 | 1 | 3 |
| 2024 | 2 | 5 |
| 2025 | 1 | 1 |
| 2026 | 6 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Ground fault circuit interrupter device and related electrical connection devices and electrical appliances15 Sep 2026US 12,738,438 B2
- Circuit breaker and quick tripping device thereof30 Jun 2026US 12,671,049 B2Chint Low Voltage Electrical Technology Co., Ltd.
- Switch system28 Apr 2026US 12,614,684 B2ABB Schweiz AG
- Electrical switching device with locking function14 Apr 2026US 12,603,240 B2Schaltbau GmbH
- Tripping device for a circuit breaker10 Mar 2026US 12,573,573 B2Siemens Energy Global GmbH & Co. KG
- Ground fault circuit interrupter device and related electrical connection devices and electrical appliances2 Apr 2026US 2026/0094780 A1
- Tripping Mechanism11 Sep 2025US 2025/0285824 A1ABB Schweiz AG
- Overcurrent protection device based on thermo magnetically-shiftable material10 Oct 2024US 2024/0339278 A1Centre National De La Recherche Scientifique
- Button and electronic device10 Oct 2024US 2024/0339279 A1AAC Technologies (Nanjing) Co., Ltd.
- Circuit breaker and quick tripping device thereof18 Jul 2024US 2024/0242910 A1Chint Low Voltage Electrical Technology Co., Ltd.
Most cited
By later US patents
- Electromagnetic trip device with tripping threshold adjustment86US 4,939,492 A1990
- Magnetic trip device with wide tripping threshold setting range86US 4,965,543 A1990
- Remotely controllable circuit breaker with improved arc drive structure48US 5,164,693 AElectric Power Research Institute, Inc. · 1992
- Circuit breaker with adjustable magnetic trip unit32US 4,691,182 AWestinghouse Electric Corp. · 1987
- Electromagnetic contactor is fitted with an electromagnet sensitive to over-currents, to cause the limitation and cut-off of excess currents16US 4,307,358 ALa Telemecanique Electrique · 1981