H01H 33/6643
Having disc-shaped contacts subdivided in petal-like segments
Official title: {having disc-shaped contacts subdivided in petal-like segments, e.g. by helical grooves}
H01H33/6643 (Having disc-shaped contacts subdivided in petal-like segments) appears on 74 US grants and 50 published applications in this corpus.
Search patents in H01H- Granted patents
- 74
- Published applications
- 50
- Assignees
- 27
- Inventors
- 151
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 5 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 3 |
| 2003 | 1 | 1 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 2 |
| 2007 | 1 | 0 |
| 2008 | 0 | 2 |
| 2009 | 0 | 1 |
| 2010 | 1 | 1 |
| 2011 | 1 | 2 |
| 2012 | 1 | 4 |
| 2013 | 1 | 5 |
| 2014 | 4 | 2 |
| 2015 | 1 | 6 |
| 2016 | 4 | 3 |
| 2017 | 6 | 1 |
| 2018 | 2 | 1 |
| 2019 | 2 | 2 |
| 2020 | 1 | 0 |
| 2021 | 0 | 1 |
| 2022 | 1 | 4 |
| 2023 | 3 | 2 |
| 2024 | 0 | 5 |
| 2025 | 1 | 1 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Vacuum interrupter25 Aug 2026US 12,718,998 B2Mitsubishi Electric Corporation
- Contact for a vacuum interrupter and production method for such a contact19 May 2026US 12,633,469 B2Siemens Aktiengesellschaft
- Vacuum circuit breaker5 Aug 2025US 12,381,053 B2Ls Electric Co., Ltd.
- Electrical breaking contact15 Aug 2023US 11,728,113 B2Schneider Electric Industries SAS
- Vacuum interrupter8 Aug 2023US 11,721,503 B2Mitsubishi Electric Corporation
- A set of electrical switching contacts27 Nov 2025US 2025/0364196 A1Schneider Electric Industries SAS
- Contact disk for a vacuum switch, vacuum switch and production method for a contact disk21 Nov 2024US 2024/0387124 A1Siemens Aktiengesellschaft
- Production process for a contact element for vacuum switches, contact element and vacuum switch3 Oct 2024US 2024/0331960 A1Siemens Aktiengesellschaft
- Vacuum interrupter11 Jul 2024US 2024/0234059 A1Mitsubishi Electric Corporation
- Vacuum Interrupter14 Mar 2024US 2024/0087822 A1ABB Schweiz AG
Most cited
By later US patents
- Vacuum interrupter with a radial magnetic field27US 5,438,174 AEaton Corporation · 1995
- Vacuum-type circuit interrupter21US 4,210,790 AHitachi, Ltd. · 1980
- Vacuum circuit interrupter with contact structure including support pins21US 6,163,002 ALG Industrial Systems Co., Ltd. · 2000
- Vacuum interrupter19US 4,196,327 AHitachi, Ltd. · 1980
- Vacuum circuit-breaker and electrode assembly therefor and a manufacturing method thereof18US 5,612,523 AHitachi, Ltd. · 1997