H01H 71/121
Protection of release mechanisms
Official title: {Protection of release mechanisms (with auxiliary contact H01H71/48)}
H01H71/121 (Protection of release mechanisms) appears on 32 US grants and 13 published applications in this corpus.
Search patents in H01H- Granted patents
- 32
- Published applications
- 13
- Assignees
- 19
- Inventors
- 84
- Latest grant
- 20 Dec 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 5 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 0 |
| 2003 | 1 | 2 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 2 |
| 2008 | 0 | 2 |
| 2009 | 0 | 0 |
| 2010 | 3 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 2 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 1 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Shield apparatus and circuit interrupter20 Dec 2022US 11,532,451 B2Eaton Intelligent Power Limited
- Accumulator operated relay test device 118 Aug 2020US 10,746,800 B2Omicron Electronics GmbH
- Circuit breaker shock absorber apparatus, assemblies, and methods of operation25 Oct 2016US 9,478,380 B2Siemens Aktiengesellschaft
- Devices, systems, and methods for shunting a circuit breaker17 Jun 2014US 8,754,727 B2Siemens Industry, Inc.
- Pressure sensitive trip mechanism with debris control15 Apr 2014US 8,698,024 B2Schneider Electric USA, Inc.
- Protection apparatus for protecting a surge protection device22 Jan 2026US 2026/0024715 A1Citel
- Mechanical breakpoint module and solid-state circuit breaker5 Jun 2025US 2025/0182980 A1Schneider Electric (China) Co., Ltd.
- Shield apparatus and circuit interrupter10 Feb 2022US 2022/0044900 A1Eaton Intelligent Power Limited
- Accumulator operated relay test device 115 Nov 2018US 2018/0328991 A1Omicron Electronics GmbH
- Circuit breaker shock absorber apparatus, assemblies, and methods of operation19 Mar 2015US 2015/0077201 A1Siemens Aktiengesellschaft
Most cited
By later US patents
- Apparatus and method for controlling a circuit breaker trip device36US 7,692,903 B2General Electric Company · 2010
- Thermal trip unit with magnetic shield and circuit breaker incorporating same25US 5,894,259 AEaton Corporation · 1999
- Fused GFI unit24US 3,958,204 AI-T-E Imperial Corporation · 1976
- Miniature circuit breaker21US 5,196,815 AWestinghouse Electric Corp. · 1993
- Current limiting shunt for current limiting circuit breakers20US 5,859,578 AGeneral Electric Company · 1999