H01H 2009/545
Comprising a parallel semiconductor switch being fired optically
Official title: {comprising a parallel semiconductor switch being fired optically, e.g. using a photocoupler,}
H01H2009/545 (Comprising a parallel semiconductor switch being fired optically) appears on 47 US grants and 15 published applications in this corpus.
Search patents in H01H- Granted patents
- 47
- Published applications
- 15
- Assignees
- 30
- Inventors
- 63
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 4 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 1 | 0 |
| 2011 | 1 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 2 |
| 2016 | 0 | 3 |
| 2017 | 1 | 1 |
| 2018 | 2 | 1 |
| 2019 | 5 | 1 |
| 2020 | 1 | 1 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Capacitive coupling-type arc extinguishing circuit and apparatus having same24 Sep 2019US 10,424,443 B2Guangzhou Kingser Electronics Co., Ltd
- Electrical contactor suitable for high-power electrical circuits, and aircraft comprising an electrical circuit integrating at least one such electrical contactor29 Aug 2024US 2024/0290563 A1Airbus Operations GmbH
- Pre-charge current control device12 Nov 2020US 2020/0358307 A1Samsung SDI.Co., Ltd.
- Arc-extinguishing power device driving apparatus and arc extinguishing apparatus31 Jan 2019US 2019/0035571 A1Guangzhou Kingser Electronics Co., Ltd
- Switching device for operating at least one load15 Feb 2018US 2018/0048303 A1Woehner GmbH & Co. KG Elektrotechnische Systeme
- Paralleling Mechanical Relays for Increased Current Carrying and Switching Capacity16 Nov 2017US 2017/0331283 A1Astronics Advanced Electronic Systems Corp.
Most cited
By later US patents
- High power direct current switching circuit233US 4,598,330 AInternational Business Machines Corporation · 1986
- Solid state/electromechanical hybrid relay89US 5,699,218 A1997
- Control unit for occupancy sensor switching of high efficiency lighting64US 5,473,202 A1995
- Relay contact protective circuit54US 4,959,746 AElectronic Specialty Corporation · 1990
- Arc suppression device and method48US 4,525,762 A1985