H01H 7/00
Devices for introducing a predetermined time delay between the initiation of the
Official title: Devices for introducing a predetermined time delay between the initiation of the switching operation and the opening or closing of the contacts (time or time-programme switches H01H43/00)
H01H7/00 (Devices for introducing a predetermined time delay between the initiation of the) appears on 82 US grants and 57 published applications in this corpus.
Search patents in H01H- Granted patents
- 82
- Published applications
- 57
- Assignees
- 54
- Inventors
- 157
- Latest grant
- 19 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 5 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 2 |
| 2011 | 1 | 3 |
| 2012 | 2 | 1 |
| 2013 | 1 | 4 |
| 2014 | 2 | 4 |
| 2015 | 1 | 10 |
| 2016 | 7 | 4 |
| 2017 | 7 | 1 |
| 2018 | 4 | 3 |
| 2019 | 3 | 2 |
| 2020 | 1 | 8 |
| 2021 | 5 | 2 |
| 2022 | 5 | 3 |
| 2023 | 4 | 1 |
| 2024 | 1 | 4 |
| 2025 | 2 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
- H01H 7/16Devices for ensuring operation of the switch at a predetermined point in18
- H01H 7/08Devices for introducing a predetermined time delay between the initiation of the17
- H01H 7/02Devices for introducing a predetermined time delay between the initiation of the13
- H01H 7/06Devices for introducing a predetermined time delay between the initiation of the3
Recent patents
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- Determination of electrical making instants using load voltage for coupled loads1 Aug 2024US 2024/0258046 A1Hitachi Energy Ltd
- Control device for controlling multiple operating characteristics of an electrical load13 Jun 2024US 2024/0194425 A1Lutron Technology Company LLC
Most cited
By later US patents
- Device for maneuvering a radiology appliance259US 5,675,227 AGE Medical Systems SA · 1997
- Time delayed shut-down circuit for recirculation pump72US 3,963,375 A1976
- Braking circuit for an electric motor31US 5,449,992 AMarquardt GmbH · 1995
- Delayed actuator with visco-elastic timer21US 4,791,251 APiezo Electric Products, Inc. · 1988
- Electrical actuator with means for preventing dither at a limit switch19US 5,081,405 AHoneywell Inc. · 1992