Wind turbine transformer control
US-12346140-B2 · Jul 1, 2025 · US
This page is not indexed by search engines while we improve data quality.
semiconductor devices only
semiconductor devices only · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G05F1/20 |
| Official title | semiconductor devices only |
| Display label | semiconductor devices only |
| Total patents | 23 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2017 | 3 |
| 2018 | 1 |
| 2019 | 2 |
| 2020 | 3 |
| 2021 | 3 |
| 2022 | 3 |
| 2023 | 2 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Tap changing for a power transformer
US-2025096708-A1 · Mar 20, 2025 · US
DC voltage regulator for low-power device
US-12189407-B2 · Jan 7, 2025 · US
Current control apparatus
US-11747841-B2 · Sep 5, 2023 · US
Voltage regulation device that includes a converter for harmonic current compensation and reactive power management
US-11735923-B2 · Aug 22, 2023 · US
Dc voltage regulator for low-power device
US-2022350355-A1 · Nov 3, 2022 · US
Wind turbine transformer control
US-2022308605-A1 · Sep 29, 2022 · US
Voltage regulation device that includes a converter for harmonic current compensation and reactive power management
US-2022037887-A1 · Feb 3, 2022 · US
AC switch, and uninterruptible power supply and voltage sag compensator including AC switch
US-11159160-B2 · Oct 26, 2021 · US
Current control apparatus
US-2021165433-A1 · Jun 3, 2021 · US
Electrical network configured to magnetically couple to a winding and to control magnetic saturation in a magnetic core
US-10890932-B2 · Jan 12, 2021 · US
Power electronic tap changer module for transformer
US-10861642-B2 · Dec 8, 2020 · US
Ac switch, and uninterruptible power supply and voltage sag compensator including ac switch
US-2020186147-A1 · Jun 11, 2020 · US
Current Control Apparatus
US-2020057461-A1 · Feb 20, 2020 · US
Flexible voltage transformation system
US-10483032-B2 · Nov 19, 2019 · US
Power electronic tap changer module for transformer
US-2019259530-A1 · Aug 22, 2019 · US
Flexible voltage transformation system
US-2018308632-A1 · Oct 25, 2018 · US
Arcless Tap Changer Using Gated Semiconductor Devices
US-2017344039-A1 · Nov 30, 2017 · US
Method of operating on-load tap changer
US-9588527-B2 · Mar 7, 2017 · US
Load tap changer
US-9557754-B2 · Jan 31, 2017 · US