H01H 39/004
Closing switches
Official title: {Closing switches}
H01H39/004 (Closing switches) appears on 80 US grants and 84 published applications in this corpus.
Search patents in H01H- Granted patents
- 80
- Published applications
- 84
- Assignees
- 48
- Inventors
- 171
- Latest grant
- 23 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 6 |
| 2004 | 2 | 2 |
| 2005 | 4 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 3 |
| 2009 | 3 | 2 |
| 2010 | 1 | 3 |
| 2011 | 0 | 4 |
| 2012 | 2 | 2 |
| 2013 | 6 | 4 |
| 2014 | 3 | 2 |
| 2015 | 4 | 4 |
| 2016 | 2 | 4 |
| 2017 | 6 | 4 |
| 2018 | 2 | 3 |
| 2019 | 5 | 7 |
| 2020 | 6 | 3 |
| 2021 | 5 | 5 |
| 2022 | 5 | 6 |
| 2023 | 1 | 8 |
| 2024 | 4 | 2 |
| 2025 | 6 | 7 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Solid state parallel arc isolating device15 Jul 2025US 12,362,121 B2Hamilton Sundstrand Corporation
- Switch for interruption of a direct current circuit powered by two electric voltage sources24 Jun 2025US 12,340,962 B2ETI Elektroelement, D.O.O.
- Pyrotechnic circuit breaker assembly for an aircraft, and an aircraft comprising such an assembly10 Jun 2025US 12,327,701 B2Airbus Operations GmbH
- Reversible, Pyrotechnic Contacting Device for an Onboard High-Voltage Electrical System of a Motor Vehicle1 Oct 2026US 2026/0296201 A1Bayerische Motoren Werke Aktiengesellschaft
- Protection device, protection circuit and battery system13 Aug 2026US 2026/0237809 A1Xiamen Hongfa Electric Power Controls Co., Ltd.
- Electrical connection switching member having penetrating body21 Aug 2025US 2025/0266226 A1
- Quick disconnect arrester5 Jun 2025US 2025/0183625 A1
- Electric circuit switching device29 May 2025US 2025/0174418 A1Daicel Corporation
Most cited
By later US patents
- Explosively actuated switch45US 4,852,494 A1989
- Explosive switch42US 4,417,519 AMcDonnell Douglas Corporation · 1983
- Miniature pyrotechnic squib switch, single pole, normally open40US 4,150,266 ANetworks Electronic Corp. · 1979
- High-explosive driven crowbar switch30US 3,932,717 AThe United States of America as represented by the United States Energy Research and Development Administration · 1976
- Conduction breaking device26US 9,324,522 B2Toyoda Gosei Co., Ltd. · 2016