H02H 1/04
Arrangements for preventing response to transient abnormal conditions
Official title: Arrangements for preventing response to transient abnormal conditions, e.g. to lightning {or to short duration over voltage or oscillations; Damping the influence of DC component by short circuits in AC networks}
H02H1/04 (Arrangements for preventing response to transient abnormal conditions) appears on 514 US grants and 389 published applications in this corpus.
Search patents in H02H- Granted patents
- 514
- Published applications
- 389
- Assignees
- 310
- Inventors
- 1,100
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 5 | 0 |
| 1978 | 3 | 0 |
| 1979 | 4 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 12 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 8 | 0 |
| 1993 | 6 | 0 |
| 1994 | 3 | 0 |
| 1995 | 12 | 0 |
| 1996 | 3 | 0 |
| 1997 | 9 | 0 |
| 1998 | 11 | 0 |
| 1999 | 18 | 0 |
| 2000 | 14 | 0 |
| 2001 | 8 | 4 |
| 2002 | 13 | 13 |
| 2003 | 29 | 17 |
| 2004 | 15 | 11 |
| 2005 | 6 | 12 |
| 2006 | 9 | 13 |
| 2007 | 13 | 15 |
| 2008 | 10 | 13 |
| 2009 | 10 | 8 |
| 2010 | 9 | 13 |
| 2011 | 11 | 20 |
| 2012 | 8 | 13 |
| 2013 | 15 | 20 |
| 2014 | 18 | 18 |
| 2015 | 16 | 12 |
| 2016 | 16 | 13 |
| 2017 | 20 | 14 |
| 2018 | 8 | 17 |
| 2019 | 16 | 26 |
| 2020 | 23 | 25 |
| 2021 | 27 | 15 |
| 2022 | 19 | 14 |
| 2023 | 13 | 10 |
| 2024 | 16 | 12 |
| 2025 | 11 | 23 |
| 2026 | 9 | 18 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Techniques for using an energy storage system as soft starter for large inductive devices25 Aug 2026US 12,719,263 B2Caterpillar Inc.
- Inrush current protection circuit for solid state lighting fixtures25 Aug 2026US 12,720,655 B2Hubbell Incorporated
- Dual-mode ground-fault/leakage-current interrupter (GFCI/LCDI) interrupter and self-test/end-of-life (STEOL)28 Jul 2026US 12,695,292 B1Tower Manufacturing Corporation
- Battery pack controller and control method19 May 2026US 12,633,818 B2Semiconductor Components Industries, LLC
- System for monitoring field device14 Apr 2026US 12,603,488 B2Beckhoff Automation GmbH
- Extended voltage operating ranges of power supplies1 Oct 2026US 2026/0302763 A1Itron, Inc.
- Block surge protector with temperature compensation1 Oct 2026US 2026/0302766 A1Wayon Semiconductor Co., Ltd.
- System and method for preventing damage to switches for an amplifier in a vehicle24 Sep 2026US 2026/0291204 A1Harman Becker Automotive Systems GmbH
- Multi-module power management fault isolation17 Sep 2026US 2026/0280265 A1NXP B. V.
- System and method for protecting an actuating electronic system against an over-current17 Sep 2026US 2026/0280266 A1
Most cited
By later US patents
- High impedance fault detection apparatus and method252US 4,466,071 AThe Texas A&M University System · 1984
- Electronic circuit breaker with protection against sputtering arc faults and ground faults252US 5,224,006 AWestinghouse Electric Corp. · 1993
- Arc fault detector with circuit interrupter222US 6,433,978 B1Leviton Manufacturing Co., Inc. · 2002
- Method and apparatus for detecting arcing in AC power systems by monitoring high frequency noise203US 5,729,145 ASiemens Energy & Automation, Inc. · 1998
- Intelligent ground fault circuit interrupter185US 5,600,524 ALeviton Manufacturing Co., Inc. · 1997