H01H 33/6646
Having non flat disc-like contact surface
Official title: {having non flat disc-like contact surface}
H01H33/6646 (Having non flat disc-like contact surface) appears on 42 US grants and 17 published applications in this corpus.
Search patents in H01H- Granted patents
- 42
- Published applications
- 17
- Assignees
- 22
- Inventors
- 70
- Latest grant
- 15 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 8 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 5 |
| 2004 | 1 | 0 |
| 2005 | 3 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 0 |
| 2012 | 1 | 1 |
| 2013 | 1 | 0 |
| 2014 | 1 | 1 |
| 2015 | 0 | 0 |
| 2016 | 1 | 1 |
| 2017 | 1 | 1 |
| 2018 | 1 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 1 | 1 |
| 2024 | 0 | 1 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Vacuum interrupter15 Apr 2025US 12,278,067 B2Kabushiki Kaisha Toshiba
- Vacuum interrupter with trap for running cathode tracks4 Jul 2023US 11,694,864 B2Eaton Intelligent Power Limited
- Vacuum bottle for electrical switching device7 Apr 2020US 10,614,980 B2Schneider Electric Industries SAS
- Vacuum valve17 Jul 2018US 10,026,570 B2Kabushiki Kaisha Toshiba
- Contact of vacuum interrupter26 Dec 2017US 9,852,858 B2Lsis Co., Ltd.
- Vacuum interrupter, vacuum circuit breaker, and vacuum contactor30 Jan 2025US 2025/0037949 A1Kabushiki Kaisha Toshiba
- Production process for a contact element for vacuum switches, contact element and vacuum switch3 Oct 2024US 2024/0331960 A1Siemens Aktiengesellschaft
- Vacuum interrupter22 Jun 2023US 2023/0197379 A1Kabushiki Kaisha Toshiba
- Vacuum interrupter with trap for running cathode tracks31 Mar 2022US 2022/0102096 A1Eaton Intelligent Power Limited
- Vacuum bottle for electrical switching device6 Jun 2019US 2019/0172665 A1Schneider Electric Industries SAS
Most cited
By later US patents
- Arcing electrode, more particularly for vacuum switches15US 4,004,117 ASprecher & Schuh AG · 1977
- Contact apparatus for vacuum switches11US 4,453,054 ASiemens Aktiengesellschaft · 1984
- High voltage d-c vacuum interrupter device with magnetic control of interrupter impedance with movable contact9US 4,130,781 AGould Inc. · 1978
- Vacuum interrupter with primary electrode surrounded by high dielectric strength shield8US 3,997,748 AGeneral Electric Company · 1976
- Current interrupter electrode configuration8US 4,171,474 AElectric Power Research Institute, Inc. · 1979