H01H 9/54
Circuit arrangements not adapted to a particular application of the switching device
Official title: Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
H01H9/54 (Circuit arrangements not adapted to a particular application of the switching device) appears on 1,400 US grants and 1,381 published applications in this corpus.
Search patents in H01H- Granted patents
- 1,400
- Published applications
- 1,381
- Assignees
- 588
- Inventors
- 2,723
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 6 | 0 |
| 1978 | 3 | 0 |
| 1979 | 6 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 8 | 0 |
| 1985 | 10 | 0 |
| 1986 | 20 | 0 |
| 1987 | 11 | 0 |
| 1988 | 12 | 0 |
| 1989 | 10 | 0 |
| 1990 | 7 | 0 |
| 1991 | 9 | 0 |
| 1992 | 10 | 0 |
| 1993 | 10 | 0 |
| 1994 | 12 | 0 |
| 1995 | 13 | 0 |
| 1996 | 19 | 0 |
| 1997 | 21 | 0 |
| 1998 | 21 | 0 |
| 1999 | 12 | 0 |
| 2000 | 15 | 0 |
| 2001 | 10 | 1 |
| 2002 | 11 | 9 |
| 2003 | 13 | 10 |
| 2004 | 10 | 24 |
| 2005 | 13 | 14 |
| 2006 | 12 | 15 |
| 2007 | 11 | 19 |
| 2008 | 14 | 32 |
| 2009 | 16 | 22 |
| 2010 | 24 | 25 |
| 2011 | 24 | 28 |
| 2012 | 16 | 47 |
| 2013 | 37 | 46 |
| 2014 | 33 | 61 |
| 2015 | 36 | 67 |
| 2016 | 54 | 94 |
| 2017 | 74 | 79 |
| 2018 | 87 | 93 |
| 2019 | 95 | 93 |
| 2020 | 87 | 103 |
| 2021 | 93 | 76 |
| 2022 | 99 | 83 |
| 2023 | 65 | 79 |
| 2024 | 79 | 101 |
| 2025 | 68 | 101 |
| 2026 | 66 | 59 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H01H 9/541Contacts shunted by semiconductor devices577
- H01H 9/56For ensuring operation of the switch at a predetermined point in the345
- H01H 9/548Electromechanical and static switch connected in series237
- H01H 9/547Combinations of mechanical switches and static switches, the latter being controlled by141
Recent patents
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- Hybrid switch assembly and circuit interrupter including the same17 Sep 2026US 2026/0279700 A1Eaton Intelligent Power Limited
- Electrical wiring devices, and circuits and systems for and methods of implementing electrical wiring devices17 Sep 2026US 2026/0280289 A1White Birch Solutions LLC
- Dead Short Switch and Method of Use10 Sep 2026US 2026/0266144 A1Gunnar LLLP
- Circuit breaker device and method27 Aug 2026US 2026/0254224 A1Siemens Aktiengesellschaft
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
- Three-way switch for home automation apparatus and method228US 8,373,313 B2HomeRun Holdings Corporation · 2013
- Bypass circuit to prevent arcing in a switching device205US 7,342,754 B2Eaton Corporation · 2008