H01H 71/14
Electrothermal mechanisms
Official title: Electrothermal mechanisms {(combined with a electro-thermal time delay relay H01H61/002)}
H01H71/14 (Electrothermal mechanisms) appears on 407 US grants and 280 published applications in this corpus.
Search patents in H01H- Granted patents
- 407
- Published applications
- 280
- Assignees
- 163
- Inventors
- 710
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 10 | 0 |
| 1978 | 6 | 0 |
| 1979 | 6 | 0 |
| 1980 | 6 | 0 |
| 1981 | 6 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 8 | 0 |
| 1985 | 9 | 0 |
| 1986 | 7 | 0 |
| 1987 | 10 | 0 |
| 1988 | 8 | 0 |
| 1989 | 10 | 0 |
| 1990 | 8 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 6 | 0 |
| 1994 | 5 | 0 |
| 1995 | 7 | 0 |
| 1996 | 7 | 0 |
| 1997 | 4 | 0 |
| 1998 | 9 | 0 |
| 1999 | 11 | 0 |
| 2000 | 7 | 0 |
| 2001 | 15 | 2 |
| 2002 | 8 | 10 |
| 2003 | 10 | 5 |
| 2004 | 3 | 7 |
| 2005 | 3 | 5 |
| 2006 | 4 | 5 |
| 2007 | 2 | 7 |
| 2008 | 5 | 10 |
| 2009 | 10 | 21 |
| 2010 | 9 | 12 |
| 2011 | 10 | 11 |
| 2012 | 8 | 13 |
| 2013 | 5 | 12 |
| 2014 | 9 | 14 |
| 2015 | 7 | 28 |
| 2016 | 25 | 17 |
| 2017 | 20 | 13 |
| 2018 | 9 | 13 |
| 2019 | 18 | 16 |
| 2020 | 15 | 10 |
| 2021 | 8 | 7 |
| 2022 | 9 | 7 |
| 2023 | 11 | 14 |
| 2024 | 6 | 9 |
| 2025 | 11 | 8 |
| 2026 | 4 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H01H 71/16With bimetal element255
- H01H 71/20With fusible mass52
- H01H 71/145Using shape memory materials42
- H01H 71/142Actuated due to change of magnetic permeability14
- H01H 71/18With expanding rod, strip, or wire12
- H01H 71/22With compensation for variation of ambient temperature8
- H01H 2071/147Thermal release by expansion of a fluidIndexing code5
Recent patents
- Circuit breaker compensation bimetal of a thermal tripping mechanism2 Jun 2026US 12,646,672 B2Rockwell Automation Switzerland GmbH
- Switch system28 Apr 2026US 12,614,684 B2ABB Schweiz AG
- Circuit breaker trip mechanism assembly24 Mar 2026US 12,586,746 B2Safran Power USA, LLC
- Active, dynamic, and reversible shape memory alloy film thermo-mechanical safety switches6 Jan 2026US 12,519,190 B2
- Surge protective device modules and assemblies23 Dec 2025US 12,506,334 B2Raycap IP Development Ltd
- Instantaneous trip apparatus of molded case circuit breaker30 Jul 2026US 2026/0221366 A1Ls Electric Co., Ltd.
- Switches with integral overcurrent protection components23 Jul 2026US 2026/0213105 A1MP Hollywood
- Connector and solar power generation device including same25 Jun 2026US 2026/0180263 A1Hanwha Solutions Corporation
- Surge protective device modules and assemblies26 Mar 2026US 2026/0088604 A1Raycap IP Development Ltd
- Terminal block with self-contained fire-extinguishing device and heat-chemical triggering25 Dec 2025US 2025/0387653 A1
Most cited
By later US patents
- Linear motion actuator utilizing extended shape memory alloy member118US 4,806,815 ANaomitsu Tokieda · 1989
- Molded case circuit breaker with interchangeable trip unit having bimetal assembly which registers with permanent heater transformer airgap103US 5,608,367 AEaton Corporation · 1997
- Process and device for setting a thermal trip device with bimetal strip102US 5,317,471 A1994
- Multipole circuit breaker with modular assembly92US 5,479,143 AMerlin Gerin · 1995
- Multipole electrical circuit breaker with improved interchangeable trip units89US 4,276,527 AMerlin Gerin · 1981