H01H 77/00
Protective overload circuit-breaking switches operated by excess current and requiring separate action
Official title: Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting (H01H73/00, H01H75/00 take precedence)
H01H77/00 (Protective overload circuit-breaking switches operated by excess current and requiring separate action) appears on 451 US grants and 191 published applications in this corpus.
Search patents in H01H- Granted patents
- 451
- Published applications
- 191
- Assignees
- 105
- Inventors
- 705
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 7 | 0 |
| 1978 | 7 | 0 |
| 1979 | 6 | 0 |
| 1980 | 4 | 0 |
| 1981 | 8 | 0 |
| 1982 | 0 | 0 |
| 1983 | 8 | 0 |
| 1984 | 10 | 0 |
| 1985 | 16 | 0 |
| 1986 | 18 | 0 |
| 1987 | 13 | 0 |
| 1988 | 8 | 0 |
| 1989 | 12 | 0 |
| 1990 | 10 | 0 |
| 1991 | 12 | 0 |
| 1992 | 6 | 0 |
| 1993 | 10 | 0 |
| 1994 | 14 | 0 |
| 1995 | 6 | 0 |
| 1996 | 19 | 0 |
| 1997 | 4 | 0 |
| 1998 | 7 | 0 |
| 1999 | 21 | 0 |
| 2000 | 10 | 0 |
| 2001 | 15 | 4 |
| 2002 | 17 | 4 |
| 2003 | 6 | 4 |
| 2004 | 3 | 6 |
| 2005 | 9 | 7 |
| 2006 | 11 | 9 |
| 2007 | 2 | 5 |
| 2008 | 6 | 7 |
| 2009 | 5 | 17 |
| 2010 | 5 | 6 |
| 2011 | 12 | 4 |
| 2012 | 9 | 18 |
| 2013 | 12 | 21 |
| 2014 | 11 | 9 |
| 2015 | 12 | 8 |
| 2016 | 12 | 6 |
| 2017 | 10 | 10 |
| 2018 | 8 | 7 |
| 2019 | 6 | 6 |
| 2020 | 4 | 5 |
| 2021 | 6 | 8 |
| 2022 | 8 | 3 |
| 2023 | 4 | 6 |
| 2024 | 2 | 3 |
| 2025 | 7 | 4 |
| 2026 | 1 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Switch disconnector with an arc extinguishing shield plate11 Aug 2026US 12,706,256 B2Eaton Intelligent Power Limited
- Switches with integral overcurrent protection components16 Sep 2025US 12,417,889 B2MP Hollywood
- Optimized slot motor for remote secondary contacts in a circuit breaker9 Sep 2025US 12,412,720 B2Eaton Intelligent Power Limited
- Moving contact mechanism26 Aug 2025US 12,400,815 B2Chint Low Voltage Electrical Technology Co., Ltd.
- Electric current knife switch5 Aug 2025US 12,381,054 B2ABB Schweiz AG
- Actuating mechanism for a power circuit-breaker and power circuit-breaker23 Jul 2026US 2026/0213096 A1Eaton Intelligent Power Limited
- Switches with integral overcurrent protection components23 Jul 2026US 2026/0213105 A1MP Hollywood
- Switching device with terminal contacts4 Jun 2026US 2026/0155319 A1Eaton Intelligent Power Limited
- Remote control breakers19 Mar 2026US 2026/0081088 A1Schneider Electric USA, Inc.
- Switching device and method for operating a switching device12 Jun 2025US 2025/0191866 A1Eaton Intelligent Power Limited
Most cited
By later US patents
- Molded case current limiting circuit breaker151US 5,341,191 AEaton Corporation · 1994
- Rapid electric-arc extinguishing assembly in circuit-breaking devices such as electric circuit breakers143US 4,375,021 AGeneral Electric Company · 1983
- Instantaneous trip device of a circuit breaker119US 5,103,198 AMerlin Gerin · 1992
- Molded case circuit breaker crossbar assembly109US 4,733,211 AGeneral Electric Company · 1988
- Molded case circuit breaker contact109US 5,313,180 AMerlin Gerin · 1994