H02H 9/02
Responsive to excess current
Official title: responsive to excess current {(current limitation for voltage regulators G05F1/573; disconnection after limiting H02H3/025)}
H02H9/02 (Responsive to excess current) appears on 1,600 US grants and 1,571 published applications in this corpus.
Search patents in H02H- Granted patents
- 1,600
- Published applications
- 1,571
- Assignees
- 863
- Inventors
- 3,451
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 10 | 0 |
| 1978 | 10 | 0 |
| 1979 | 9 | 0 |
| 1980 | 4 | 0 |
| 1981 | 7 | 0 |
| 1982 | 7 | 0 |
| 1983 | 5 | 0 |
| 1984 | 6 | 0 |
| 1985 | 4 | 0 |
| 1986 | 4 | 0 |
| 1987 | 6 | 0 |
| 1988 | 7 | 0 |
| 1989 | 7 | 0 |
| 1990 | 12 | 0 |
| 1991 | 8 | 0 |
| 1992 | 8 | 0 |
| 1993 | 12 | 0 |
| 1994 | 9 | 0 |
| 1995 | 14 | 0 |
| 1996 | 14 | 0 |
| 1997 | 24 | 0 |
| 1998 | 24 | 0 |
| 1999 | 26 | 0 |
| 2000 | 19 | 0 |
| 2001 | 15 | 4 |
| 2002 | 25 | 11 |
| 2003 | 17 | 16 |
| 2004 | 9 | 15 |
| 2005 | 10 | 16 |
| 2006 | 16 | 33 |
| 2007 | 11 | 14 |
| 2008 | 16 | 29 |
| 2009 | 19 | 28 |
| 2010 | 23 | 24 |
| 2011 | 20 | 22 |
| 2012 | 24 | 46 |
| 2013 | 27 | 68 |
| 2014 | 54 | 86 |
| 2015 | 66 | 111 |
| 2016 | 80 | 91 |
| 2017 | 88 | 83 |
| 2018 | 60 | 100 |
| 2019 | 115 | 116 |
| 2020 | 104 | 127 |
| 2021 | 121 | 100 |
| 2022 | 122 | 91 |
| 2023 | 82 | 89 |
| 2024 | 79 | 82 |
| 2025 | 68 | 75 |
| 2026 | 62 | 94 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H02H 9/025Current limitation using field effect transistors474
- H02H 9/026Current limitation using ptc resistors, i.e. resistors with a large positive temperature232
- H02H 9/023Current limitation using superconducting elements164
- H02H 9/021Current limitation using saturable reactors75
- H02H 9/028Current limitation by detuning a series resonant circuit14
Recent patents
- Methods and devices for managing power supply systems6 Oct 2026US 12,756,180 B2Comcast Cable Communications, LLC
- Electrostatic discharge circuit, display substrate, and display device6 Oct 2026US 12,756,181 B2Boe Technology Group Co., Ltd.
- Method for monitoring the integrity of a control device29 Sep 2026US 12,749,889 B2Schaeffler Technologies AG & Co. KG
- Methods and apparatus to protect circuitry from overcurrent conditions22 Sep 2026US 12,744,375 B2Texas Instruments Incorporated
- Inrush current limiting circuit22 Sep 2026US 12,744,376 B2ABB Schweiz AG
- Electrical distribution method and system, configured to supply electric motors of an aircraft from at least one electrical source1 Oct 2026US 2026/0296654 A1Safran Electrical & Power
- Protection Circuit, Method for Protecting Electrical Load, and System1 Oct 2026US 2026/0302759 A13M Innovative Properties Company
- Apparatus and Methods Preventing Circuit Breaker Masking1 Oct 2026US 2026/0302765 A1
- Junction module for fault current limiter and modular fault current limiter comprising same24 Sep 2026US 2026/0291217 A1Ls Electric Co., Ltd.
- Power receiving apparatus24 Sep 2026US 2026/0291289 A1Denso Corporation
Most cited
By later US patents
- Loudspeaker overload protection circuit293US 4,296,278 AAltec Corporation · 1981
- Systems and methods for distributed series compensation of power lines using passive devices215US 7,835,128 B2Georgia Tech Research Corporation · 2010
- Parallel connection of controllable semiconductor components187US 5,859,772 AABB Daimler-Benz Transportation (Technology) GmbH · 1999
- PTC thermistor and a current limiter device having at least one PTC thermistor176US 6,094,129 ADaimlerChrysler AG · 2000
- Electrosurgical generator safety apparatus167US 4,437,464 AC. R. Bard, Inc. · 1984