H02H 3/165
For three-phase systems
Official title: {for three-phase systems}
H02H3/165 (For three-phase systems) appears on 145 US grants and 136 published applications in this corpus.
Search patents in H02H- Granted patents
- 145
- Published applications
- 136
- Assignees
- 97
- Inventors
- 321
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 4 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 3 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 3 | 2 |
| 2008 | 0 | 3 |
| 2009 | 1 | 1 |
| 2010 | 2 | 1 |
| 2011 | 3 | 2 |
| 2012 | 0 | 1 |
| 2013 | 1 | 7 |
| 2014 | 2 | 6 |
| 2015 | 12 | 11 |
| 2016 | 3 | 7 |
| 2017 | 9 | 13 |
| 2018 | 8 | 9 |
| 2019 | 9 | 13 |
| 2020 | 8 | 10 |
| 2021 | 19 | 16 |
| 2022 | 12 | 5 |
| 2023 | 10 | 14 |
| 2024 | 10 | 6 |
| 2025 | 5 | 4 |
| 2026 | 4 | 3 |
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
- Electrical safety system with timer23 Jun 2026US 12,665,408 B2Belgravia Wood Limited
- Arc fault solution for multiple electric devices24 Feb 2026US 12,562,561 B2Innomotics GmbH
- Common mode current feed fault protection6 Jan 2026US 12,519,412 B2Hamilton Sundstrand Corporation
- Multi-phase AC voltage fault detection based on virtual voltage2 Dec 2025US 12,489,288 B2L3Harris Technologies, Inc.
- New energy power station grounding protection system, method, electronic device, and storage medium6 Aug 2026US 2026/0229871 A1Shanxi Yingrun New Energy Co., Ltd
- Apparatus for an inductive charging system, and inductive charging system29 Jan 2026US 2026/0027907 A1BRUSA Elektronik AG
- Fault detection in an electric drive train of a vehicle1 Jan 2026US 2026/0002996 A1
- Method to detect single-phase-to-ground faults in electric power systems16 Oct 2025US 2025/0321292 A1Schweitzer Engineering Laboratories, Inc.
- Electric leakage detection circuit25 Sep 2025US 2025/0298089 A1Panasonic Automotive Systems Co., Ltd.
Most cited
By later US patents
- Electrosurgical safety circuit151US 4,200,105 ADentsply Research & Development Corp. · 1980
- Ground fault detection device for motor driving circuit44US 7,586,285 B2OMRON Corporation · 2009
- Overcurrent and ground fault responsive trip unit for circuit breakers40US 4,115,829 AGeneral Electric Company · 1978
- Grounding and ground fault detection circuits36US 4,580,186 A1986
- Protected capacitor system and method34US 9,947,467 B22018