H01H 33/46
Interlocking mechanisms
H01H33/46 (Interlocking mechanisms) appears on 75 US grants and 72 published applications in this corpus.
Search patents in H01H- Granted patents
- 75
- Published applications
- 72
- Assignees
- 48
- Inventors
- 209
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 5 | 4 |
| 2004 | 2 | 0 |
| 2005 | 0 | 1 |
| 2006 | 2 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 1 | 1 |
| 2010 | 2 | 0 |
| 2011 | 0 | 4 |
| 2012 | 1 | 3 |
| 2013 | 5 | 4 |
| 2014 | 1 | 4 |
| 2015 | 6 | 5 |
| 2016 | 6 | 10 |
| 2017 | 5 | 4 |
| 2018 | 4 | 3 |
| 2019 | 6 | 0 |
| 2020 | 2 | 4 |
| 2021 | 4 | 2 |
| 2022 | 2 | 4 |
| 2023 | 5 | 6 |
| 2024 | 3 | 4 |
| 2025 | 5 | 3 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Interlock module, circuit breaker movement unit and switchboard comprising same21 Jul 2026US 12,689,190 B2Ls Electric Co., Ltd.
- Circuit breaker16 Dec 2025US 12,500,055 B2Ls Electric Co., Ltd.
- Insulated earthing switch for an air insulated or mixed switchgear9 Sep 2025US 12,413,053 B2GE Vernova Infrastructure Technology LLC
- High voltage circuit-breaker26 Aug 2025US 12,400,816 B2Hitachi Energy Ltd
- Switchgear with manual trip assembly and mechanical interlock1 Apr 2025US 12,266,488 B2G & W Electric Company
- Electric switch and electric switch assembly30 Jul 2026US 2026/0221358 A1
- Manual operation assembly14 May 2026US 2026/0135048 A1
- Interlock module, circuit breaker movement unit and switchboard comprising same30 Apr 2026US 2026/0121387 A1Ls Electric Co., Ltd.
- SubSea Circuit Breaker16 Oct 2025US 2025/0323474 A1ABB Schweiz AG
- Switchgear with manual trip assembly and mechanical interlock17 Jul 2025US 2025/0232933 A1G & W Electric Company
Most cited
By later US patents
- Circuit breaker with capacitor discharge system21US 6,689,968 B2ABB Technology AG · 2004
- Circuit breaker with mechanical interlock18US 6,545,234 B1ABB Technology AG · 2003
- Interlock apparatus of ground switch for vacuum circuit breaker16US 8,395,064 B2LS Industrial Systems Co., Ltd. · 2013
- Mechanical interlock for vertically mounted circuit breakers15US 4,516,100 AWestinghouse Electric Corp. · 1985
- Withdrawable interlock device of vacuum circuit breaker11US 9,825,439 B2Lsis Co., Ltd. · 2017