H02H 7/20
Emergency protective circuit arrangements specially adapted for specific types of electric machines
Official title: for electronic equipment (for converters H02H7/10; for electric measuring instruments G01R1/36; for DC voltage or current semiconductor regulators G05F1/569; for amplifiers H03F1/52; for electronic switching circuits H03K17/08)
H02H7/20 (Emergency protective circuit arrangements specially adapted for specific types of electric machines) appears on 681 US grants and 800 published applications in this corpus.
Search patents in H02H- Granted patents
- 681
- Published applications
- 800
- Assignees
- 448
- Inventors
- 1,630
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 5 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 1 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 5 |
| 2010 | 2 | 3 |
| 2011 | 2 | 11 |
| 2012 | 4 | 23 |
| 2013 | 8 | 25 |
| 2014 | 17 | 40 |
| 2015 | 27 | 37 |
| 2016 | 35 | 40 |
| 2017 | 33 | 61 |
| 2018 | 39 | 60 |
| 2019 | 64 | 70 |
| 2020 | 59 | 66 |
| 2021 | 73 | 60 |
| 2022 | 58 | 53 |
| 2023 | 60 | 75 |
| 2024 | 64 | 76 |
| 2025 | 52 | 50 |
| 2026 | 48 | 40 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Display device having a short circuit protection part to output a shutdown signal6 Oct 2026US 12,755,687 B2Samsung Display Co., Ltd.
- Power supply over-voltage protection system6 Oct 2026US 12,756,178 B2Quanta Computer Inc.
- Systems and methods for remotely servicing an electric charging apparatus6 Oct 2026US 12,756,179 B2AmpUp, Inc.
- Photovoltaic module turn-off circuit and photovoltaic device29 Sep 2026US 12,749,888 B2Altenergy Power System Inc.
- Safety switch for photovoltaic systems15 Sep 2026US 12,738,888 B2Solaredge Technologies Ltd.
- Electrical Equipment Fault Diagnosis And Control1 Oct 2026US 2026/0299538 A1Budderfly, Inc.
- Insulation monitoring device (imd), system for monitoring insulation and method for monitoring insulation of imd24 Sep 2026US 2026/0287636 A1Ls Electric Co., Ltd.
- Safety device including safety circuit that resumes supply of relay operation voltage, when predetermined cancellation is executed, and image forming apparatus24 Sep 2026US 2026/0291213 A1KYOCERA Document Solutions Inc.
- Systems and methods for detecting a presence of a floating neutral condition17 Sep 2026US 2026/0276739 A1Haier US Appliance Solutions, Inc.
- Overload protection in an electronic device10 Sep 2026US 2026/0269598 A1Signify Holding B. V.
Most cited
By later US patents
- Multiple sensors with one sensor affecting a second sensor's output or interpretation1,559US 9,757,128 B2Ethicon, Inc. · 2017
- Multiple motor control for powered medical device1,555US 9,788,836 B2Ethicon, Inc. · 2017
- Adjunct with integrated sensors to quantify tissue compression1,540US 9,724,094 B2Ethicon, Inc. · 2017
- Monitoring device degradation based on component evaluation1,519US 9,737,301 B2Ethicon, Inc. · 2017
- Polarity of hall magnet to identify cartridge type1,445US 10,016,199 B2Ethicon, Inc. · 2018