H01H 47/001
Functional circuits
Official title: {Functional circuits, e.g. logic, sequencing, interlocking circuits}
H01H47/001 (Functional circuits) appears on 154 US grants and 140 published applications in this corpus.
Search patents in H01H- Granted patents
- 154
- Published applications
- 140
- Assignees
- 116
- Inventors
- 365
- Latest grant
- 23 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 5 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 1 |
| 2002 | 2 | 2 |
| 2003 | 4 | 4 |
| 2004 | 1 | 1 |
| 2005 | 1 | 1 |
| 2006 | 1 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 3 |
| 2011 | 1 | 0 |
| 2012 | 1 | 5 |
| 2013 | 2 | 2 |
| 2014 | 2 | 3 |
| 2015 | 5 | 11 |
| 2016 | 3 | 6 |
| 2017 | 5 | 6 |
| 2018 | 9 | 16 |
| 2019 | 12 | 12 |
| 2020 | 11 | 9 |
| 2021 | 17 | 14 |
| 2022 | 14 | 9 |
| 2023 | 10 | 9 |
| 2024 | 7 | 9 |
| 2025 | 10 | 6 |
| 2026 | 0 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods to protect a MEMS relay switch system23 Sep 2025US 12,424,843 B2Menlo Microsystems, Inc.
- Electrically isolated auxiliary flight controllers for rotorcraft16 Sep 2025US 12,415,601 B2Textron Innovations Inc.
- Mechatronic control device26 Aug 2025US 12,400,808 B2Universita' Degli Studi Di Roma “La Sapienza”
- Load switching system and circuit12 Aug 2025US 12,387,892 B2SiliconBrite Technologies, Inc.
- Implementing contactor opening and fusing strategies in a power distribution unit22 Jul 2025US 12,368,296 B2Sensata Technologies, Inc.
- Relay Control Apparatus and Method30 Jul 2026US 2026/0221360 A1LG Energy Solution, Ltd.
- System and method for regulating a voltage signal14 May 2026US 2026/0135052 A1Resideo LLC
- Systems and methods to protect a mems relay switch system23 Apr 2026US 2026/0112884 A1Menlo Microsystems, Inc.
- Relay control system16 Apr 2026US 2026/0106098 A1Toyota Jidosha Kabushiki Kaisha
- Programmable and Configurable Switch Assembly2 Apr 2026US 2026/0094776 A1Stein Industries, Inc.
Most cited
By later US patents
- Electrical power strip for use with a computer and associated peripheral devices71US 6,586,849 B22003
- Modified electrical strip for energizing/de-energizing secondary devices simultaneously with a main device62US 5,579,201 A1996
- Peripheral device power activation circuit and method therefor53US 4,970,623 AHewlett-Packard Company · 1990
- One time programmable switched-output controller52US 5,450,334 APulizzi Engineering, Inc. · 1995
- Power distribution apparatus comprising relay devices for controlling current flow along power paths of the power distribution apparatus47US 6,232,675 B1Hewlett-Packard Company · 2001