H01H 51/005
Inversing contactors
Official title: {Inversing contactors (H01H50/323 takes precedence)}
H01H51/005 (Inversing contactors) appears on 58 US grants and 22 published applications in this corpus.
Search patents in H01H- Granted patents
- 58
- Published applications
- 22
- Assignees
- 29
- Inventors
- 110
- Latest grant
- 4 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 5 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 3 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 2 |
| 2007 | 2 | 1 |
| 2008 | 0 | 1 |
| 2009 | 1 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 1 |
| 2012 | 2 | 4 |
| 2013 | 4 | 2 |
| 2014 | 1 | 0 |
| 2015 | 2 | 1 |
| 2016 | 1 | 2 |
| 2017 | 2 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 2 |
| 2023 | 1 | 1 |
| 2024 | 1 | 1 |
| 2025 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Detecting welded relay contacts using spanner voltage measurement4 Nov 2025US 12,461,156 B2Rockwell Automation Technologies, Inc.
- Electromagnetic contactor for star-delta driving15 Apr 2025US 12,278,069 B2
- Method of mounting an interlock module between two contactors and an interlock module12 Mar 2024US 11,929,228 B2Schneider Electric Industries SAS
- Universal control module for a reversing contactor3 Oct 2023US 11,778,759 B2Rockwell Automation Technologies, Inc.
- Switching device for a wye-delta switch in a multiphase motor7 May 2019US 10,283,297 B2Eaton Intelligent Power Limited
- Detecting welded relay contacts using spanner voltage measurement26 Dec 2024US 2024/0426915 A1Rockwell Automation Technologies, Inc.
- Electromagnetic contactor for star-delta driving10 Aug 2023US 2023/0253171 A1
- Method of mounting an interlock module between two contactors and an interlock module1 Dec 2022US 2022/0384124 A1Schneider Electric Industries SAS
- Universal Control Module for a Reversing Contactor7 Jul 2022US 2022/0217853 A1Rockwell Automation Technolgoies, Inc.
- Switching device for a wye-delta switch in a multiphase motor2 Feb 2017US 2017/0032916 A1Eaton Intelligent Power Limited
Most cited
By later US patents
- Diode assisted relay contactor34US 4,360,847 AGeneral Electric Company · 1982
- Electrical contactor system with transfer of scaled overload information29US 5,493,468 AEaton Corporation · 1996
- Electrical switch19US 4,529,953 AElectromation, Inc. · 1985
- Contactor and controller for a contactor17US 6,091,596 ALucas Industries Limited · 2000
- Electro-mechanical reversing contactor with a single, common base16US 6,140,896 AEaton Corporation · 2000