H02H 3/332
With means responsive to dc component in the fault current
Official title: {with means responsive to DC component in the fault current}
H02H3/332 (With means responsive to dc component in the fault current) appears on 47 US grants and 35 published applications in this corpus.
Search patents in H02H- Granted patents
- 47
- Published applications
- 35
- Assignees
- 41
- Inventors
- 100
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 3 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 2 |
| 2006 | 2 | 1 |
| 2007 | 2 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 1 |
| 2012 | 2 | 0 |
| 2013 | 1 | 2 |
| 2014 | 1 | 4 |
| 2015 | 2 | 0 |
| 2016 | 3 | 2 |
| 2017 | 0 | 3 |
| 2018 | 1 | 3 |
| 2019 | 4 | 3 |
| 2020 | 4 | 1 |
| 2021 | 1 | 2 |
| 2022 | 1 | 2 |
| 2023 | 1 | 0 |
| 2024 | 3 | 2 |
| 2025 | 0 | 0 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for checking the adequacy at the residual currents of differential circuit breakers18 Aug 2026US 12,712,355 B2Chauvin Arnoux
- Photovoltaic power generation system and method5 Nov 2024US 12,136,808 B2Huawei Digital Power Technologies Co., Ltd.
- Circuit for alternating current and direct current leakage detection7 May 2024US 11,977,130 B2Qingdao Topscomm Communication Co., Ltd
- Protection system for aircraft electric propulsion motor and motor controller23 Jan 2024US 11,878,594 B2The Boeing Company
- Electric circuit arrangement and a method for a galvanically insulated, AC/DC sensitive differential-current measurement having high resolution7 Feb 2023US 11,573,250 B2Bender GmbH & Co. KG
- Method for processing a current transformer signal24 Sep 2026US 2026/0291210 A1Schneider Electric Industries SAS
- Energy production plant with power converter unit9 Apr 2026US 2026/0100576 A1SMA Solar Technology AG
- Method for checking the adequacy at the residual currents of differential circuit breakers26 Dec 2024US 2024/0429701 A1Chauvin Arnoux
- Circuit for alternating current and direct current leakage detection14 Mar 2024US 2024/0085495 A1Qingdao Topscomm Communication Co., Ltd
- Protection System for Aircraft Electric Propulsion Motor and Motor Controller22 Dec 2022US 2022/0402364 A1The Boeing Company
Most cited
By later US patents
- Switch mechanism79US 5,517,165 APDL Holdings Limited · 1996
- Leakage current protection device adapted to a wide variety of domestic and international applications48US 6,381,113 B1Technology Research Corporation · 2002
- Monitoring insulation and fault current in an A/C current network to provide load shutoff whenever differential current exceeds a certain response value30US 6,392,422 B1Dip.-Ing. Walther Bender GmbH & Co. KG · 2002
- Ground fault circuit interrupter28US 4,280,162 ANorth American Philips Corporation · 1981
- DC Ground fault detector wherein fault is sensed by noting imbalance of magnetic flux in a magnetic core26US 4,371,832 A1983