H01H 47/08
By changing number of parallel-connected turns or windings
Official title: by changing number of parallel-connected turns or windings
H01H47/08 (By changing number of parallel-connected turns or windings) appears on 17 US grants and 14 published applications in this corpus.
Search patents in H01H- Granted patents
- 17
- Published applications
- 14
- Assignees
- 10
- Inventors
- 40
- Latest grant
- 23 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 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 | 1 | 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 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 1 |
| 2002 | 2 | 1 |
| 2003 | 1 | 0 |
| 2004 | 1 | 1 |
| 2005 | 1 | 2 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 3 |
| 2010 | 1 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Electromagnetic relay with decreasing hold power requirement23 Dec 2025US 12,505,967 B2OMRON Corporation
- DC contactor with dual micro switches2 Nov 2021US 11,164,711 B2Xiamen Hongfa Electric Power Controls Co., Ltd.
- Relay including processor providing control and/or monitoring18 Jul 2017US 9,711,309 B2Eaton Corporation
- Switching device, starting device, and method for an electromagnetic switching device28 Oct 2014US 8,872,373 B2Robert Bosch GmbH
- Starter mechanism having a multi-stage plunger relay1 Oct 2013US 8,544,437 B2Robert Bosch GmbH
- Electromagnet device1 Feb 2024US 2024/0038471 A1OMRON Corporation
- Dc contactor with dual micro switches30 Jan 2020US 2020/0035432 A1Xiamen Hongfa Electric Power Controls Co., Ltd.
- Relay including processor providing control and/or monitoring29 Jan 2015US 2015/0028877 A1Eaton Corporation
- Switching device, starting device, and method for an electromagnetic switching device11 Apr 2013US 2013/0088011 A1Robert Bosch GmbH
- Starter mechanism having a multi-stage plunger relay27 May 2010US 2010/0126454 A1Robert Bosch GmbH
Most cited
By later US patents
- Electromagnetic switching apparatus68US 6,911,884 B2Matsushita Electric Works, Ltd. · 2005
- Integral relay low voltage retentive means23US 4,227,231 AEaton Corporation · 1980
- Electromagnetic operator for an electrical contactor and method for controlling same14US 6,493,202 B2Rockwell Automation Technologies, Inc. · 2002
- Method of dissipating energy from a contactor coil8US 6,687,100 B1Square D Company · 2004
- Electromagnetic operator for an electrical contactor and method for controlling same6US 6,411,489 B1Rockwell Automation Technologies, Inc. · 2002