Method and device for changing a transformation ratio, an impedance, or a voltage used for excitation
US-2025330018-A1 · Oct 23, 2025 · US
with motor driven tap switch
with motor driven tap switch · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G05F1/147 |
| Official title | with motor driven tap switch |
| Display label | with motor driven tap switch |
| Total patents | 28 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 6 |
| 2017 | 2 |
| 2018 | 6 |
| 2019 | 2 |
| 2020 | 2 |
| 2022 | 1 |
| 2023 | 4 |
| 2024 | 1 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Multi-phase voltage regulator control
US-2025028340-A1 · Jan 23, 2025 · US
Multi-phase voltage regulator control
US-12111673-B2 · Oct 8, 2024 · US
Multi-phase voltage regulator control
US-2023393597-A1 · Dec 7, 2023 · US
Multi-phase voltage regulator control
US-11747840-B2 · Sep 5, 2023 · US
On-load tap changer and local network transformer having an on-load tap changer
US-11631554-B2 · Apr 18, 2023 · US
Multi-phase voltage regulator control
US-2023058132-A1 · Feb 23, 2023 · US
Control system for determining a tap position of a tap changing mechanism of a voltage regulation device
US-11507118-B2 · Nov 22, 2022 · US
On-load tap changer and local network transformer having an on-load tap changer
US-2020411254-A1 · Dec 31, 2020 · US
Control system for a voltage regulation device
US-2020249709-A1 · Aug 6, 2020 · US
Voltage regulator system and method of use
US-10198013-B2 · Feb 5, 2019 · US
Electrical switching system for a three-phase network
US-10176919-B2 · Jan 8, 2019 · US
Voltage regulator system and method of use
US-10082810-B2 · Sep 25, 2018 · US
System and method for regulation of voltage on an electric power system
US-10048709-B2 · Aug 14, 2018 · US
Voltage Regulator System and Method of Use
US-2018173256-A1 · Jun 21, 2018 · US
Voltage Regulator System and Method of Use
US-2018173257-A1 · Jun 21, 2018 · US
On-load tap changer, tap-changing transformer for voltage regulation and method for implementing tap changer in the tap-changing transformer
US-9941064-B2 · Apr 10, 2018 · US
System and method for regulation of voltage on an electric power system
US-2018081380-A1 · Mar 22, 2018 · US
System and method for regulation of voltage on an electrical network
US-9600004-B2 · Mar 21, 2017 · US
Method for regulating the voltage of a transformer
US-9557753-B2 · Jan 31, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G05F1/147?
- CPC G05F1/147 is the Cooperative Patent Classification code for “with motor driven tap switch.”
- How many patents are filed under CPC G05F1/147 (with motor driven tap switch)?
- Our database includes 28 publications tagged with this CPC code.
- Is patent activity under CPC G05F1/147 growing?
- Publication counts under this code: 1 in 2024 vs 2 in 2025 (latest complete years).