H01H 50/323
For interlocking two or more relays
Official title: {for interlocking two or more relays}
H01H50/323 (For interlocking two or more relays) appears on 63 US grants and 33 published applications in this corpus.
Search patents in H01H- Granted patents
- 63
- Published applications
- 33
- Assignees
- 35
- Inventors
- 95
- Latest grant
- 7 Jan 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 5 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 2 |
| 2009 | 1 | 0 |
| 2010 | 0 | 2 |
| 2011 | 2 | 1 |
| 2012 | 1 | 7 |
| 2013 | 6 | 2 |
| 2014 | 3 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 10 |
| 2017 | 5 | 1 |
| 2018 | 2 | 1 |
| 2019 | 4 | 1 |
| 2020 | 1 | 0 |
| 2021 | 0 | 1 |
| 2022 | 1 | 1 |
| 2023 | 0 | 2 |
| 2024 | 1 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Protection unit for control/command units of an electrical enclosure7 Jan 2025US 12,191,104 B2Schneider Electric Industries SAS
- Method of mounting an interlock module between two contactors and an interlock module12 Mar 2024US 11,929,228 B2Schneider Electric Industries SAS
- Systems and methods for minimizing energy available to contacts during a fault7 Jun 2022US 11,355,292 B2Rockwell Automation Technologies, Inc.
- Temperature-based electromagnetic switching15 Dec 2020US 10,866,284 B2Rockwell Automation Technologies, Inc.
- Intelligent timed electromagnetic switching27 Aug 2019US 10,393,809 B2Rockwell Automation Technologies, Inc.
- Latched Electromechanical Relay17 Aug 2023US 2023/0260729 A1Solaredge Technologies Ltd.
- Protection unit for control/command units of an electrical enclosure22 Jun 2023US 2023/0197369 A1Schneider Electric Industries SAS
- Method of mounting an interlock module between two contactors and an interlock module1 Dec 2022US 2022/0384124 A1Schneider Electric Industries SAS
- Systems and methods for minimizing energy available to contacts during a fault1 Apr 2021US 2021/0098207 A1Rockwell Automation Technologies, Inc.
- Temperature-based electromagnetic switching24 Jan 2019US 2019/0025375 A1Rockwell Automation Technologies, Inc.
Most cited
By later US patents
- Control apparatus for two-speed compressor61US 3,935,519 ALennox Industries Inc. · 1976
- Control apparatus for two-speed, single phase compressor61US 3,978,382 ALennox Industries Inc. · 1976
- Single-pole, single current path switching system and method34US 9,726,726 B2Rockwell Automation Technologies, Inc. · 2017
- Power control relay for electrical outlets which maintains position in absence of solenoid energization25US 5,072,328 ASquare D Company · 1991
- Motor control center relay reset mechanism18US 6,531,670 B1Square D Company · 2003