H01H 9/40
Multiple main contacts for the purpose of dividing the current through, or
Official title: Multiple main contacts for the purpose of dividing the current through, or potential drop along, the arc
H01H9/40 (Multiple main contacts for the purpose of dividing the current through, or) appears on 141 US grants and 106 published applications in this corpus.
Search patents in H01H- Granted patents
- 141
- Published applications
- 106
- Assignees
- 82
- Inventors
- 275
- Latest grant
- 17 Feb 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 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 6 | 0 |
| 2001 | 4 | 0 |
| 2002 | 6 | 1 |
| 2003 | 3 | 4 |
| 2004 | 7 | 5 |
| 2005 | 6 | 6 |
| 2006 | 4 | 5 |
| 2007 | 4 | 3 |
| 2008 | 3 | 2 |
| 2009 | 1 | 7 |
| 2010 | 5 | 3 |
| 2011 | 1 | 3 |
| 2012 | 5 | 6 |
| 2013 | 5 | 7 |
| 2014 | 9 | 6 |
| 2015 | 5 | 1 |
| 2016 | 1 | 2 |
| 2017 | 3 | 7 |
| 2018 | 5 | 7 |
| 2019 | 10 | 6 |
| 2020 | 4 | 5 |
| 2021 | 6 | 4 |
| 2022 | 5 | 7 |
| 2023 | 4 | 4 |
| 2024 | 5 | 2 |
| 2025 | 2 | 3 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Switching device17 Feb 2026US 12,555,724 B2Defond Electech Co., Ltd.
- High-voltage relay with improved mechanical shock tolerance for a drive or charging circuit of an electric vehicle with a rocker as armature4 Nov 2025US 12,462,996 B2TE Connectivity Germany GmbH
- High voltage direct current circuit protection system and method1 Jul 2025US 12,347,635 B2Eaton Intelligent Power Limited
- Current balancing for automatic transfer switches24 Dec 2024US 12,176,170 B2Cummins Power Generation IP, Inc.
- Switch for an on-load tap changer and load transfer switch for an on-load tap changer12 Nov 2024US 12,142,448 B2Maschinenfabrik Reinhausen GmbH
- High voltage direct current circuit protection system and method4 Dec 2025US 2025/0372325 A1Eaton Intelligent Power Limited
- Contactor With Multiple Contacts for Conducting and Limiting a Current26 Jun 2025US 2025/0210284 A1Bayerische Motoren Werke Aktiengesellschaft
- Relay20 Mar 2025US 2025/0095939 A1Xiamen Hongfa Electric Power Controls Co., Ltd.
- Pyrotechnic Switch7 Nov 2024US 2024/0371586 A1Autoliv Development AB
- Switching Device for a Multi-Pole High-Voltage Vehicle Power Supply of an Electrically Operable Motor Vehicle, Electronic Control Unit, and Motor Vehicle18 Apr 2024US 2024/0123831 A1Bayerische Motoren Werke Aktiengesellschaft
Most cited
By later US patents
- Micromachining methods for making micromechanical moving structures including multiple contact switching system127US 5,454,904 AGeneral Electric Company · 1995
- Arc resistant high voltage micromachined electrostatic switch123US 6,057,520 AMcnc · 2000
- Micromechanical switching devices94US 6,153,839 ANortheastern University · 2000
- Microelectromechanical liquid metal current carrying system, apparatus and method79US 6,373,356 B1InterScience, Inc. · 2002
- Micromechanical moving structures including multiple contact switching system76US 5,374,792 AGeneral Electric Company · 1994