H02H 3/003
Responsive to reversal of power transmission direction
Official title: {responsive to reversal of power transmission direction (reversal of direct current H02H3/18)}
H02H3/003 (Responsive to reversal of power transmission direction) appears on 63 US grants and 62 published applications in this corpus.
Search patents in H02H- Granted patents
- 63
- Published applications
- 62
- Assignees
- 61
- Inventors
- 168
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 2 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 1 | 0 |
| 2012 | 3 | 3 |
| 2013 | 1 | 8 |
| 2014 | 2 | 3 |
| 2015 | 6 | 4 |
| 2016 | 3 | 3 |
| 2017 | 0 | 3 |
| 2018 | 3 | 4 |
| 2019 | 3 | 4 |
| 2020 | 3 | 6 |
| 2021 | 6 | 4 |
| 2022 | 6 | 2 |
| 2023 | 0 | 3 |
| 2024 | 2 | 1 |
| 2025 | 3 | 6 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Electrical power supply system, moving object, and method of controlling electrical power supply system14 Jul 2026US 12,683,407 B2Honda Motor Co., Ltd.
- Gallium nitride-based active current flowback prevention14 Apr 2026US 12,603,491 B2Blue Origin Manufacturing, LLC
- Load switch and power system6 Jan 2026US 12,519,301 B2Nexperia B. V.
- Backfeed electrocution prevention devices, systems and method4 Nov 2025US 12,463,416 B2Power Grid Professionals Inc
- Current-controlled circuit breaker for electrical submersible pump motor leads23 Sep 2025US 12,424,844 B2Halliburton Energy Services.Inc.
- Protection circuit and semiconductor device including the protection circuit30 Jul 2026US 2026/0223462 A1Ablic Inc.
- Gallium nitride-based active current flowback prevention23 Jul 2026US 2026/0213522 A1Blue Origin Manufacturing, LLC
- Backfeed prevention devices, systems and methods25 Dec 2025US 2025/0392119 A1MW Holdings Group, LLC
- Potential generating circuit, reverse flow preventing circuit, and control method of potential generating circuit4 Dec 2025US 2025/0372999 A1Wacom Co., Ltd.
- Power-side shutdown protection method for power conversion circuit, power converter, combiner box, and power conversion system30 Oct 2025US 2025/0337234 A1Sungrow Power Supply Co., Ltd.
Most cited
By later US patents
- Plug-in ground fault monitor for a circuit breaker41US 5,490,086 ASiemens Energy & Automation, Inc. · 1996
- Primary power fault detector28US 3,937,937 AXerox Corporation · 1976
- Network protector relay27US 3,947,728 AWestinghouse Electric Corp. · 1976
- Leakage protection outlet14US 8,297,990 B22012
- Protection system for power receiving station12US 5,892,645 AHitachi, Ltd. · 1999