H01H 9/542
Contacts shunted by static switch means
Official title: {Contacts shunted by static switch means}
H01H9/542 (Contacts shunted by static switch means) appears on 499 US grants and 491 published applications in this corpus.
Search patents in H01H- Granted patents
- 499
- Published applications
- 491
- Assignees
- 235
- Inventors
- 1,011
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 9 | 0 |
| 1987 | 8 | 0 |
| 1988 | 6 | 0 |
| 1989 | 5 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 5 | 0 |
| 1995 | 2 | 0 |
| 1996 | 8 | 0 |
| 1997 | 8 | 0 |
| 1998 | 6 | 0 |
| 1999 | 5 | 0 |
| 2000 | 7 | 0 |
| 2001 | 3 | 0 |
| 2002 | 2 | 4 |
| 2003 | 7 | 4 |
| 2004 | 2 | 10 |
| 2005 | 4 | 5 |
| 2006 | 3 | 0 |
| 2007 | 4 | 5 |
| 2008 | 3 | 16 |
| 2009 | 6 | 7 |
| 2010 | 9 | 10 |
| 2011 | 13 | 6 |
| 2012 | 5 | 25 |
| 2013 | 13 | 11 |
| 2014 | 12 | 13 |
| 2015 | 12 | 23 |
| 2016 | 13 | 27 |
| 2017 | 16 | 16 |
| 2018 | 23 | 27 |
| 2019 | 27 | 36 |
| 2020 | 29 | 49 |
| 2021 | 44 | 27 |
| 2022 | 41 | 40 |
| 2023 | 27 | 32 |
| 2024 | 29 | 35 |
| 2025 | 27 | 36 |
| 2026 | 26 | 27 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H01H 2009/543Third parallel branch comprising an energy absorberIndexing code140
- H01H 2009/544The static switching means being an insulated gate bipolar transistorIndexing code121
- H01H 2009/546The static switching means being triggered by the voltage over the mechanicalIndexing code55
- H01H 2009/545Comprising a parallel semiconductor switch being fired opticallyIndexing code47
Recent patents
- Electrical switching arrangement11 Aug 2026US 12,706,257 B2Eaton Intelligent Power Limited
- Hybrid circuit breaker using a transient commutation current injector circuit11 Aug 2026US 12,706,451 B2Illinois Institute of Technology
- Half-bridge circuit arrangement and method for actuation4 Aug 2026US 12,700,553 B2Semikron Danfoss Elektronik GmbH & Co. KG
- Generator circuit breaker9 Jun 2026US 12,651,896 B2Xi' An Jiaotong University
- Switch system28 Apr 2026US 12,614,684 B2ABB Schweiz AG
- Hybrid switch assembly and circuit interrupter including the same17 Sep 2026US 2026/0279700 A1Eaton Intelligent Power Limited
- Electric switching device6 Aug 2026US 2026/0230069 A1Eaton Intelligent Power Limited
- Switching device30 Jul 2026US 2026/0221753 A1Ellenberger & Poensgen GmbH
- Electrical contactor with an integrated breaking device23 Jul 2026US 2026/0213088 A1Safran Electrical & Power
- Micro-electromechanical switch systems with self-testing capability25 Jun 2026US 2026/0177619 A1Analog Devices International Unlimited Company
Most cited
By later US patents
- Direct-current breaker for high power for connection into a direct-current carrying high-voltage line251US 5,517,378 AAsea Brown Boveri AG · 1996
- High voltage DC relays240US 5,081,558 ANorthrop Corporation · 1992
- High power direct current switching circuit233US 4,598,330 AInternational Business Machines Corporation · 1986
- Bypass circuit to prevent arcing in a switching device205US 7,342,754 B2Eaton Corporation · 2008
- Surge-resistant relay switching circuit104US 5,633,540 ALutron Electronics Co., Inc. · 1997