H01H 9/38
Auxiliary contacts on to which the arc is transferred from the main
Official title: Auxiliary contacts on to which the arc is transferred from the main contacts (using arcing-horns H01H9/46)
H01H9/38 (Auxiliary contacts on to which the arc is transferred from the main) appears on 153 US grants and 122 published applications in this corpus.
Search patents in H01H- Granted patents
- 153
- Published applications
- 122
- Assignees
- 85
- Inventors
- 405
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 5 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 3 |
| 2002 | 6 | 6 |
| 2003 | 6 | 2 |
| 2004 | 6 | 3 |
| 2005 | 2 | 2 |
| 2006 | 0 | 1 |
| 2007 | 2 | 1 |
| 2008 | 1 | 1 |
| 2009 | 0 | 2 |
| 2010 | 2 | 1 |
| 2011 | 1 | 2 |
| 2012 | 3 | 2 |
| 2013 | 1 | 3 |
| 2014 | 1 | 3 |
| 2015 | 3 | 4 |
| 2016 | 1 | 4 |
| 2017 | 6 | 4 |
| 2018 | 3 | 6 |
| 2019 | 5 | 9 |
| 2020 | 13 | 10 |
| 2021 | 9 | 4 |
| 2022 | 8 | 6 |
| 2023 | 4 | 7 |
| 2024 | 3 | 19 |
| 2025 | 4 | 8 |
| 2026 | 7 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Spark gaps with high current capability for electrical overstress detection and protection25 Aug 2026US 12,719,242 B2Analog Devices International Unlimited Company
- Deflection member, breaking module, and contactor4 Aug 2026US 12,700,558 B2Schneider Electric Industries SAS
- Switching system of an electrical device16 Jun 2026US 12,658,387 B2Schneider Electric Industries SAS
- Circuit breaking unit and air circuit breaker including same5 May 2026US 12,620,536 B2Ls Electric Co., Ltd.
- Breaker unit and air circuit breaker comprising same21 Apr 2026US 12,609,255 B2Ls Electric Co., Ltd.
- Electrical installation with means for extinguishing series electric arcs, in particular in a contactor16 Jul 2026US 2026/0200329 A1Safran Electrical & Power
- Electrical installation with means for switching series electric arcs9 Jul 2026US 2026/0192677 A1Safran Electrical & Power
- System and method for protecting electromechanical switchgear11 Jun 2026US 2026/0162915 A1Leach International Corporation
- Switching apparatus for electrical systems11 Jun 2026US 2026/0162920 A1
- Optimized device for protecting an electrical line, electrical system and aircraft4 Jun 2026US 2026/0155648 A1Airbus Operations GmbH
Most cited
By later US patents
- Contact structures for sliding switches201US 6,979,786 B2Delphi Technologies, Inc. · 2005
- Molded case current limiting circuit breaker151US 5,341,191 AEaton Corporation · 1994
- Low voltage circuit breaker with multiple contacts for high currents111US 5,210,385 A1993
- Molded case current limiting circuit breaker97US 5,260,533 AWestinghouse Electric Corp. · 1993
- Auxiliary shunt multiple contact breaking device89US 5,296,660 AMerlin Gerin · 1994