H01H 9/0066
Auxiliary contact devices
Official title: {Auxiliary contact devices (for arc transfer H01H9/38; for electromagnetic relays H01H50/541)}
H01H9/0066 (Auxiliary contact devices) appears on 131 US grants and 108 published applications in this corpus.
Search patents in H01H- Granted patents
- 131
- Published applications
- 108
- Assignees
- 97
- Inventors
- 286
- Latest grant
- 21 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 7 | 0 |
| 1999 | 4 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 1 | 6 |
| 2003 | 4 | 4 |
| 2004 | 10 | 2 |
| 2005 | 2 | 1 |
| 2006 | 1 | 5 |
| 2007 | 3 | 2 |
| 2008 | 2 | 2 |
| 2009 | 0 | 4 |
| 2010 | 4 | 2 |
| 2011 | 3 | 2 |
| 2012 | 3 | 3 |
| 2013 | 1 | 3 |
| 2014 | 3 | 5 |
| 2015 | 8 | 2 |
| 2016 | 1 | 2 |
| 2017 | 2 | 1 |
| 2018 | 2 | 4 |
| 2019 | 5 | 10 |
| 2020 | 8 | 7 |
| 2021 | 6 | 9 |
| 2022 | 4 | 6 |
| 2023 | 5 | 8 |
| 2024 | 7 | 8 |
| 2025 | 9 | 6 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Linkage mechanism, base, and surge protection device21 Oct 2025US 12,451,688 B2Shanghai Chenzhu Instrument Co., Ltd.
- Switch disconnector for manually switching a number of electrical contacts9 Sep 2025US 12,412,709 B2Eaton Intelligent Power Limited
- Relay with arc extinguishing devices9 Sep 2025US 12,412,717 B2BYD Company Limited
- Mechatronic control device26 Aug 2025US 12,400,808 B2Universita' Degli Studi Di Roma “La Sapienza”
- High-voltage DC relay22 Jul 2025US 12,368,014 B2Xiamen Hongfa Electric Power Controls Co., Ltd.
- Protecting device and method for manufacturing protecting device3 Sep 2026US 2026/0260831 A1Dexerials Corporation
- Method for determining an estimated travel curve of an interrupter unit, and interrupter unit for a gas-insulated high or medium voltage device30 Apr 2026US 2026/0120972 A1Hitachi Energy Ltd
- Switch system22 Jan 2026US 2026/0024711 A1Denso Corporation
- Switch actuator25 Dec 2025US 2025/0391616 A1Cummins Power Generation Inc.
- High-voltage dc relay2 Oct 2025US 2025/0308822 A1Xiamen Hongfa Electric Power
Most cited
By later US patents
- Biasing assembly for a switching device1,471US 5,944,172 AAllen-Bradley Company, Inc. · 1999
- Switch mechanisms for safe activation of energy on an electrosurgical instrument1,038US 7,837,685 B2Covidien LP · 2010
- Switch gear46US 4,713,498 ASquare D Starkstrom GmbH · 1987
- Relay control apparatus41US 5,267,120 ADigital Appliance Controls, Inc. · 1993
- Method and apparatus for control contacts of an automatic transfer switch32US 7,898,372 B2ASCO Power Technologies, L. P. · 2011