G05F 1/20
Semiconductor devices only
Official title: semiconductor devices only
G05F1/20 (Semiconductor devices only) appears on 47 US grants and 20 published applications in this corpus.
Search patents in G05F- Granted patents
- 47
- Published applications
- 20
- Assignees
- 32
- Inventors
- 132
- Latest grant
- 1 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 5 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 1 | 0 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 1 | 3 |
| 2016 | 0 | 0 |
| 2017 | 2 | 1 |
| 2018 | 0 | 1 |
| 2019 | 1 | 1 |
| 2020 | 1 | 1 |
| 2021 | 1 | 1 |
| 2022 | 0 | 2 |
| 2023 | 2 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 2 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Wind turbine transformer control1 Jul 2025US 12,346,140 B2Siemens Gamesa Renewable Energy Innovation & Technology S.L.
- Current control apparatus5 Sep 2023US 11,747,841 B2Eaton Intelligent Power Limited
- Voltage regulation device that includes a converter for harmonic current compensation and reactive power management22 Aug 2023US 11,735,923 B2Eaton Intelligent Power Limited
- Electrical network configured to magnetically couple to a winding and to control magnetic saturation in a magnetic core12 Jan 2021US 10,890,932 B2Eaton Intelligent Power Limited
- Power electronic tap changer module for transformer8 Dec 2020US 10,861,642 B2ABB Schweiz AG
- Dynamic power flow controller (dpfc) for regulating power flow in a power transmission line25 Jun 2026US 2026/0178063 A1
- Iot-based automated voltage controller system for motor operated three-phase autotransformer26 Feb 2026US 2026/0056564 A1
- Controlling the timing of a transformer tap change31 Jul 2025US 2025/0247030 A1Siemens Gamesa Renewable Energy Innovation & Technology S.L.
- Tap changing for a power transformer20 Mar 2025US 2025/0096708 A1Infineon Technologies Bipolar GmbH & Co. KG
- Wind turbine transformer control29 Sep 2022US 2022/0308605 A1Siemens Gamesa Renewable Energy Innovation & Technology S.L.
Most cited
By later US patents
- Switched multi-tapped transformer power conversion method and apparatus62US 5,155,672 AHeart Interface Corporation · 1992
- Means and method for controlling elecrical transformer voltage regulating tapchangers60US 5,136,233 AIowa-Illinois Gas and Electric Company · 1992
- Phase-shifting transformer system54US 5,166,597 AElectric Power Research Institute, Inc. · 1992
- Transformer for arc and plasma setups having broad current adjustment range44US 4,737,704 A1988
- Input waveform follow-up AC power source system37US 5,635,826 AChiyoda Corporation · 1997