H01H 1/605
Cleaning of contact-making surfaces by relatively high voltage pulses
Official title: {Cleaning of contact-making surfaces by relatively high voltage pulses}
H01H1/605 (Cleaning of contact-making surfaces by relatively high voltage pulses) appears on 83 US grants and 59 published applications in this corpus.
Search patents in H01H- Granted patents
- 83
- Published applications
- 59
- Assignees
- 66
- Inventors
- 130
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 2 |
| 2002 | 2 | 3 |
| 2003 | 3 | 1 |
| 2004 | 2 | 1 |
| 2005 | 2 | 6 |
| 2006 | 2 | 2 |
| 2007 | 2 | 4 |
| 2008 | 2 | 1 |
| 2009 | 3 | 0 |
| 2010 | 2 | 1 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 1 |
| 2015 | 3 | 4 |
| 2016 | 3 | 2 |
| 2017 | 3 | 3 |
| 2018 | 1 | 1 |
| 2019 | 2 | 2 |
| 2020 | 4 | 8 |
| 2021 | 6 | 6 |
| 2022 | 5 | 3 |
| 2023 | 5 | 2 |
| 2024 | 1 | 2 |
| 2025 | 2 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Power tool including switch wetting11 Aug 2026US 12,703,927 B2Milwaukee Electric Tool Corporation
- Method for actuating an electromechanical switching element23 Sep 2025US 12,424,403 B2Phoenix Contact GmbH & Co.KG
- Systems and methods for detecting and removing residue from low current electrical contacts14 Jan 2025US 12,198,872 B2The Boeing Company
- Power contact fault clearing device2 Jan 2024US 11,862,408 B2Arc Suppression Technologies
- ECS equipment reliability through wetting current22 Aug 2023US 11,735,375 B2Honeywell International Inc.
- Pull-up circuit for circuit breaker contacts25 Dec 2025US 2025/0392112 A1Vertiv Corporation
- Method for actuating an electromechanical switching element14 Aug 2025US 2025/0259812 A1Phoenix Contact GmbH & Co.KG
- Power tool including switch wetting6 Jun 2024US 2024/0183060 A1Milwaukee Electric Tool Corporation
- Power Contact Health Assessor Apparatus and Method15 Feb 2024US 2024/0055195 A1Arc Suppression Technologies
- Power contact electrode surface plasma therapy21 Dec 2023US 2023/0411087 A1Arc Suppression Technologies
Most cited
By later US patents
- Switch-arc preventing circuit35US 4,250,531 A1981
- Switch input current circuit33US 6,800,965 B1Robert Bosch GmbH · 2004
- Mechanical switch circuit comprising contact conditioning means25US 4,134,026 ARicoh Company, Ltd. · 1979
- Corrosion preventing circuit for switch23US 5,523,633 AYazaki Corporation · 1996
- Control system for electric water heater with heat pump external heat source16US 4,540,874 ABorg-Warner Corporation · 1985