H01H 1/42
Knife-and-clip contacts
H01H1/42 (Knife-and-clip contacts) appears on 164 US grants and 139 published applications in this corpus.
Search patents in H01H- Granted patents
- 164
- Published applications
- 139
- Assignees
- 101
- Inventors
- 353
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 5 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 3 | 2 |
| 2003 | 0 | 2 |
| 2004 | 2 | 1 |
| 2005 | 1 | 0 |
| 2006 | 1 | 1 |
| 2007 | 1 | 2 |
| 2008 | 1 | 3 |
| 2009 | 0 | 3 |
| 2010 | 3 | 5 |
| 2011 | 0 | 3 |
| 2012 | 7 | 2 |
| 2013 | 4 | 6 |
| 2014 | 3 | 9 |
| 2015 | 6 | 13 |
| 2016 | 13 | 8 |
| 2017 | 11 | 5 |
| 2018 | 8 | 7 |
| 2019 | 6 | 5 |
| 2020 | 4 | 17 |
| 2021 | 15 | 9 |
| 2022 | 13 | 10 |
| 2023 | 7 | 7 |
| 2024 | 3 | 5 |
| 2025 | 6 | 6 |
| 2026 | 1 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Voltage transformer disconnect switch for utility metering sections of a medium voltage switchgear11 Aug 2026US 12,706,261 B2Iem New Sub 2 LLC
- High voltage disconnect switch with switch interrupter having an actuating arm actuated by an arc horn with a spring catch12 Aug 2025US 12,387,888 B2Cleaveland/Price Inc.
- Power supply system and switch unit12 Aug 2025US 12,387,889 B2Huawei Digital Power Technologies Co., Ltd.
- Power shut-off module with dielectric barrier5 Aug 2025US 12,381,046 B2Socomec
- Electric current knife switch5 Aug 2025US 12,381,054 B2ABB Schweiz AG
- Electrical Circuit Breaker Device3 Sep 2026US 2026/0257561 A1Pacific Engineering Corp.
- Electrical Contact with Multilayer Coating20 Aug 2026US 2026/0245808 A1ABB Schweiz AG
- Test switch4 Jun 2026US 2026/0155318 A1
- Switching device for a medium-voltage electric unit28 May 2026US 2026/0148913 A1Schneider Electric Industries SAS
- Electric switch30 Apr 2026US 2026/0120971 A1
Most cited
By later US patents
- Circuit breaker contact assembly45US 5,025,121 ASiemens Energy & Automation, Inc. · 1991
- Pullout type electric disconnect switch23US 5,406,449 AEaton Corporation · 1995
- Rotary switch including spring biased knife blade contacts19US 5,969,308 ASiemens Energy & Automation, Inc. · 1999
- Electrical contact assembly17US 5,098,318 ASprecher Energie AG · 1992
- Contact structure for drawout switchgear16US 4,121,067 AWestinghouse Electric Corp. · 1978