H01H 2050/028
Means to improve the overall withstanding voltage
Official title: {Means to improve the overall withstanding voltage, e.g. creepage distances}
H01H2050/028 (Means to improve the overall withstanding voltage) appears on 70 US grants and 67 published applications in this corpus.
Search patents in H01H- Granted patents
- 70
- Published applications
- 67
- Assignees
- 51
- Inventors
- 193
- Latest grant
- 16 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 2 | 1 |
| 2004 | 1 | 1 |
| 2005 | 0 | 3 |
| 2006 | 1 | 1 |
| 2007 | 1 | 2 |
| 2008 | 1 | 0 |
| 2009 | 2 | 0 |
| 2010 | 0 | 2 |
| 2011 | 1 | 2 |
| 2012 | 2 | 3 |
| 2013 | 1 | 5 |
| 2014 | 3 | 3 |
| 2015 | 2 | 2 |
| 2016 | 2 | 1 |
| 2017 | 2 | 3 |
| 2018 | 2 | 6 |
| 2019 | 3 | 0 |
| 2020 | 0 | 6 |
| 2021 | 4 | 4 |
| 2022 | 6 | 6 |
| 2023 | 3 | 4 |
| 2024 | 4 | 5 |
| 2025 | 5 | 5 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Electromagnetic relay with short circuit preventing features18 Feb 2025US 12,230,463 B2OMRON Corporation
- Direct current contactor with moving and fixed contact components located within an arc-extinguishing cavity14 Jan 2025US 12,198,884 B2Huawei Digital Power Technologies Co., Ltd.
- Small-size high-voltage direct current contactor8 Jan 2026US 2026/0011516 A1Kunshan Guoliyuantong New Energy Technology Co., Ltd.
- Relay, power distribution apparatus, and charging pile24 Jul 2025US 2025/0240892 A1Huawei Digital Power Technologies Co., Ltd.
- Relay3 Jul 2025US 2025/0218715 A1Fcl Components Limited
- Electromagnetic relay26 Jun 2025US 2025/0210294 A1OMRON Corporation
- Switching chamber for a switching device and switching device19 Jun 2025US 2025/0201502 A1
Most cited
By later US patents
- Electromagnetic relay38US 3,993,971 AMatsushita Electric Works, Ltd. · 1976
- Electromagnetic relay28US 5,160,910 AOMRON Corporation · 1992
- Relay27US 8,674,796 B2Ngk Spark Plug Co., Ltd. · 2014
- Sealed contact device and operating mechanism26US 5,680,084 AMatsushita Electric Works, Ltd. · 1997
- Relay22US 6,034,582 AElesta Relays GmbH · 2000