H01H 47/02
Circuit arrangements not adapted to a particular application of the relay and
Official title: for modifying the operation of the relay
H01H47/02 (Circuit arrangements not adapted to a particular application of the relay and) appears on 463 US grants and 370 published applications in this corpus.
Search patents in H01H- Granted patents
- 463
- Published applications
- 370
- Assignees
- 264
- Inventors
- 893
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 4 | 0 |
| 1979 | 5 | 0 |
| 1980 | 8 | 0 |
| 1981 | 4 | 0 |
| 1982 | 6 | 0 |
| 1983 | 6 | 0 |
| 1984 | 6 | 0 |
| 1985 | 6 | 0 |
| 1986 | 6 | 0 |
| 1987 | 9 | 0 |
| 1988 | 4 | 0 |
| 1989 | 5 | 0 |
| 1990 | 3 | 0 |
| 1991 | 8 | 0 |
| 1992 | 8 | 0 |
| 1993 | 4 | 0 |
| 1994 | 12 | 0 |
| 1995 | 6 | 0 |
| 1996 | 5 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 9 | 0 |
| 2000 | 5 | 0 |
| 2001 | 6 | 1 |
| 2002 | 2 | 4 |
| 2003 | 5 | 2 |
| 2004 | 6 | 5 |
| 2005 | 5 | 5 |
| 2006 | 4 | 3 |
| 2007 | 3 | 8 |
| 2008 | 3 | 6 |
| 2009 | 6 | 7 |
| 2010 | 5 | 7 |
| 2011 | 6 | 8 |
| 2012 | 6 | 11 |
| 2013 | 10 | 18 |
| 2014 | 6 | 14 |
| 2015 | 18 | 26 |
| 2016 | 9 | 23 |
| 2017 | 23 | 22 |
| 2018 | 22 | 34 |
| 2019 | 38 | 19 |
| 2020 | 18 | 24 |
| 2021 | 29 | 27 |
| 2022 | 31 | 25 |
| 2023 | 22 | 19 |
| 2024 | 17 | 22 |
| 2025 | 16 | 17 |
| 2026 | 7 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H01H 47/04For holding armature in attracted position209
- H01H 47/18For introducing delay in the operation of the relay99
- H01H 2047/025With taking into account of the thermal influencesIndexing code26
- H01H 47/14For differential operation of the relay10
- H01H 47/20For producing frequency-selective operation of the relay8
- H01H 47/16For conjoint7
- H01H 47/12For biasing the electromagnet4
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Most cited
By later US patents
- Solenoid actuator having a magnetic flux sensor87US 5,032,812 AAutomatic Switch Company · 1991
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- Electromagnetic switching apparatus68US 6,911,884 B2Matsushita Electric Works, Ltd. · 2005
- Solenoid activation circuitry using high voltage65US 4,777,556 ADataTrak, Inc. · 1988