H01H 71/40
Combined electrothermal and electromagnetic mechanisms
H01H71/40 (Combined electrothermal and electromagnetic mechanisms) appears on 172 US grants and 104 published applications in this corpus.
Search patents in H01H- Granted patents
- 172
- Published applications
- 104
- Assignees
- 73
- Inventors
- 350
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 1 | 0 |
| 1978 | 4 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 4 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 5 | 0 |
| 2000 | 4 | 0 |
| 2001 | 10 | 1 |
| 2002 | 1 | 2 |
| 2003 | 0 | 0 |
| 2004 | 5 | 2 |
| 2005 | 2 | 0 |
| 2006 | 0 | 2 |
| 2007 | 1 | 2 |
| 2008 | 2 | 5 |
| 2009 | 2 | 10 |
| 2010 | 2 | 6 |
| 2011 | 6 | 0 |
| 2012 | 5 | 4 |
| 2013 | 5 | 7 |
| 2014 | 4 | 4 |
| 2015 | 5 | 13 |
| 2016 | 11 | 5 |
| 2017 | 8 | 6 |
| 2018 | 4 | 6 |
| 2019 | 8 | 9 |
| 2020 | 9 | 2 |
| 2021 | 1 | 0 |
| 2022 | 3 | 5 |
| 2023 | 1 | 0 |
| 2024 | 2 | 3 |
| 2025 | 1 | 7 |
| 2026 | 5 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Circuit breaker linear lever and tripping fork mechanism12 May 2026US 12,626,872 B2Rockwell Automation Switzerland GmbH
- Insulating-material housing and compact circuit breaker5 May 2026US 12,620,541 B2Siemens Aktiengesellschaft
- Electricity leak protection unit for each phase line21 Apr 2026US 12,609,260 B2
- Self-passivating metal circuit devices for use in a submerged ambient environment24 Mar 2026US 12,586,737 B2Northrop Grumman Systems Corporation
- Circuit breaker6 Jan 2026US 12,518,940 B2Chint Low Voltage Electrical Technology Co., Ltd.
- Instantaneous trip apparatus of molded case circuit breaker30 Jul 2026US 2026/0221366 A1Ls Electric Co., Ltd.
- Insulating-material housing for a compact circuit breaker21 May 2026US 2026/0142112 A1Siemens Aktiengesellschaft
- Protection apparatus for protecting a surge protection device22 Jan 2026US 2026/0024715 A1Citel
- Circuit breaker and operating mechanism thereof4 Dec 2025US 2025/0372330 A1Chint Low Voltage Electrical Technology Co., Ltd.
- Four bar linkage mechanism for circuit breaker to rotate movable conductor and operating handle in opposite directions25 Sep 2025US 2025/0299899 A1Eaton Intelligent Power Limited
Most cited
By later US patents
- Molded case circuit breaker apparatus having trip bar with flexible armature interconnection95US 4,503,408 AWestinghouse Electric Corp. · 1985
- Multipole electrical circuit breaker with improved interchangeable trip units89US 4,276,527 AMerlin Gerin · 1981
- Circuit breaker with latch and toggle mechanism operating in perpendicular planes53US 6,225,883 B1Eaton Corporation · 2001
- Automated Q-line circuit breaker52US 4,513,268 AGeneral Electric Company · 1985
- Circuit breaker44US 4,616,200 ASquare D Company · 1986