G05F 1/40
Using discharge tubes or semiconductor devices as final control devices
Official title: using discharge tubes or semiconductor devices as final control devices
G05F1/40 (Using discharge tubes or semiconductor devices as final control devices) appears on 389 US grants and 194 published applications in this corpus.
Search patents in G05F- Granted patents
- 389
- Published applications
- 194
- Assignees
- 248
- Inventors
- 635
- Latest grant
- 6 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 26 | 0 |
| 1977 | 9 | 0 |
| 1978 | 7 | 0 |
| 1979 | 8 | 0 |
| 1980 | 6 | 0 |
| 1981 | 12 | 0 |
| 1982 | 10 | 0 |
| 1983 | 7 | 0 |
| 1984 | 7 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 5 | 0 |
| 1988 | 2 | 0 |
| 1989 | 7 | 0 |
| 1990 | 7 | 0 |
| 1991 | 9 | 0 |
| 1992 | 9 | 0 |
| 1993 | 6 | 0 |
| 1994 | 10 | 0 |
| 1995 | 5 | 0 |
| 1996 | 11 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 0 |
| 2002 | 3 | 1 |
| 2003 | 2 | 1 |
| 2004 | 1 | 6 |
| 2005 | 6 | 10 |
| 2006 | 1 | 2 |
| 2007 | 1 | 2 |
| 2008 | 0 | 3 |
| 2009 | 6 | 1 |
| 2010 | 2 | 5 |
| 2011 | 3 | 7 |
| 2012 | 5 | 7 |
| 2013 | 13 | 11 |
| 2014 | 8 | 16 |
| 2015 | 13 | 4 |
| 2016 | 17 | 12 |
| 2017 | 13 | 11 |
| 2018 | 13 | 17 |
| 2019 | 24 | 22 |
| 2020 | 14 | 11 |
| 2021 | 11 | 19 |
| 2022 | 23 | 16 |
| 2023 | 16 | 6 |
| 2024 | 5 | 2 |
| 2025 | 2 | 0 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Regulator circuit, corresponding system and method6 May 2025US 12,294,302 B2STMicroelectronics S,r.l.
- Integrating voltage regulators and passive circuit elements with top side power planes in stacked die architectures4 Mar 2025US 12,242,290 B2Intel Corporation
- Nonlinear current mirror for fast transient and low power regulator10 Dec 2024US 12,166,417 B2QUALCOMM Incorporated
- Power supply apparatus for performing wireless communication between first circuit and second circuit insulated from first circuit, and image forming apparatus including power supply apparatus24 Sep 2024US 12,099,322 B2Canon Kabushiki Kaisha
- Prediction and recovery of zero-crossing information and selective control signal pulse duration20 Aug 2024US 12,069,779 B2Leviton Manufacturing Co., Inc.
- Power regulator4 Jun 2026US 2026/0153541 A1Autonics Corporation
- Reference voltage generation circuit26 Feb 2026US 2026/0056566 A1Mitsumi Electric Co., Ltd.
- Prediction and recovery of zero-crossing information and selective control signal pulse duration7 Nov 2024US 2024/0373522 A1Leviton Manufacturing Co., Inc.
- Prediction and recovery of zero-crossing information and selective control signal pulse duration25 Jan 2024US 2024/0032162 A1Leviton Manufacturing Co., Inc.
- Regulator circuit, corresponding system and method21 Dec 2023US 2023/0412080 A1STMicroelectronics S,r.l.
Most cited
By later US patents
- Programmed control module for inductive coupling to a wall switch244US 5,264,761 ABeacon Light Products, Inc. · 1993
- Phase-controlled power modulation system120US 5,239,255 ABayview Technology Group, LLC · 1993
- Synchronously rectified buck-flyback DC to DC power converter108US 5,552,695 ALinear Technology Corporation · 1996
- Power control circuit with phase controlled signal input107US 4,797,599 ALutron Electronics Co., Inc. · 1989
- Phase-controlled reversible power converter presenting a controllable counter emf to a source of an impressed voltage101US 5,109,185 A1992