H02H 3/22
Of short duration
Official title: of short duration, e.g. lightning
H02H3/22 (Of short duration) appears on 143 US grants and 142 published applications in this corpus.
Search patents in H02H- Granted patents
- 143
- Published applications
- 142
- Assignees
- 118
- Inventors
- 348
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 1 |
| 2004 | 2 | 0 |
| 2005 | 0 | 3 |
| 2006 | 0 | 1 |
| 2007 | 1 | 1 |
| 2008 | 0 | 1 |
| 2009 | 1 | 2 |
| 2010 | 1 | 1 |
| 2011 | 0 | 4 |
| 2012 | 3 | 8 |
| 2013 | 6 | 8 |
| 2014 | 5 | 4 |
| 2015 | 7 | 9 |
| 2016 | 7 | 17 |
| 2017 | 15 | 8 |
| 2018 | 8 | 5 |
| 2019 | 5 | 11 |
| 2020 | 8 | 17 |
| 2021 | 17 | 15 |
| 2022 | 20 | 9 |
| 2023 | 11 | 5 |
| 2024 | 4 | 7 |
| 2025 | 3 | 3 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Multilevel power conversion system, and circuitry of multilevel power conversion system15 Sep 2026US 12,738,832 B2TMEIC Corporation
- Device and method for disconnecting a high-voltage direct electric current with a fuse, and oscillating-current overload system25 Aug 2026US 12,719,257 B2Supergrid Institute
- Method and reconfigurable inline systems for protection from transient electromagnetic energy disturbance16 Jun 2026US 12,658,694 B2EMP Shield Inc.
- Power supply circuit having protection circuit against electrostatic discharge stress and semiconductor device having the power supply circuit14 Oct 2025US 12,444,922 B2Kabushiki Kaisha Toshiba
- Apparatus for detection of electrical disturbances resulting from electromagnetic pulse and solar storm13 May 2025US 12,300,993 B2Faraday Defense Corporation
- Power supply system16 Jul 2026US 2026/0204888 A1Kaneka Corporation
- Surge arrester4 Jun 2026US 2026/0155634 A1Streamer, Electric Company Inc.
- Real-time overvoltage monitoring to prevent unauthorized access via timing fault exploitation18 Dec 2025US 2025/0384169 A1NVIDIA Corporation
- Wireless Communication System for Electrically Powered Railbound Vehicles18 Dec 2025US 2025/0385509 A1Icomera AB
- Multilevel power conversion system, and circuitry of multilevel power conversion system20 Nov 2025US 2025/0357841 A1TMEIC Corporation
Most cited
By later US patents
- Method and systems for electromagnetic protection with persistent self monitoring and cybersecure local and remote status report130US 11,469,592 B12022
- Incipient lightning detection and device protection54US 5,291,208 ARabun Labs, Inc. · 1994
- Incipient lightning detection and device protection54US 5,521,603 ARabun Labs, Inc. · 1996
- Protection circuit with bidirectional surge protection48US 11,128,130 B2Shanghai Awinic Technology Co., LTD · 2021
- Apparatus and method for electronic circuit protection27US 8,422,187 B2Analog Devices, Inc. · 2013