H01H 47/14
For differential operation of the relay
Official title: for differential operation of the relay
H01H47/14 (For differential operation of the relay) appears on 10 US grants and 7 published applications in this corpus.
Search patents in H01H- Granted patents
- 10
- Published applications
- 7
- Assignees
- 9
- Inventors
- 21
- Latest grant
- 23 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 0 |
| 2022 | 2 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Solenoid-based voltage imbalance protection23 Sep 2025US 12,424,839 B2Schneider Electric USA, Inc.
- Relay device and control method of relay device24 May 2022US 11,342,148 B2Marelli Corporation
- Power supply circuit, relay device and power over ethernet system25 Jan 2022US 11,232,922 B2Hangzhou Hikvision Digital Technology Co., Ltd.
- Electrical storage system30 Oct 2018US 10,115,549 B2Toyota Jidosha Kabushiki Kaisha
- Electromagnetic relay14 Oct 2014US 8,860,537 B2Nissan Motor Co., Ltd.
- Solenoid-based voltage imbalance protection4 Jul 2024US 2024/0222953 A1Schneider Electric USA, Inc.
- Relay Device and Control Method of Relay Device31 Mar 2022US 2022/0102101 A1Marelli Corporation
- Power supply circuit, relay device and power over ethernet system17 Sep 2020US 2020/0294746 A1Hangzhou Hikvision Digital Technology Co., Ltd.
- Electrical storage system4 Aug 2016US 2016/0225564 A1Toyota Jidosha Kabushiki Kaisha
- Electromagnetic relay18 Apr 2013US 2013/0093542 A1Nissan Motor Co., Ltd.
Most cited
By later US patents
- Electronic switch for quick, automatic response to current overloads13US 5,956,222 ATarget Hi-Tec Electronics Ltd. · 1999
- Sequential timing circuitry10US 4,144,552 A1979
- Differential relay arrangement for determining when one of two cooperating lamps, particularly vehicle lamps, is not operating5US 3,975,721 AHermann Stribel KG · 1976
- Electromagnetic relay4US 8,860,537 B2Nissan Motor Co., Ltd. · 2014
- Electric motor circuit with overload protection1US 7,184,249 B2Eaton Automotive B.V. · 2007