Over-voltage prevention apparatus and method of distribution line connected with distributed generator
US-2020244068-A1 · Jul 30, 2020 · US
using tap transformers or tap changing inductors as final control devices
using tap transformers or tap changing inductors as final control devices · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G05F1/14 |
| Official title | using tap transformers or tap changing inductors as final control devices |
| Display label | using tap transformers or tap changing inductors as final control devices |
| Total patents | 94 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 10 |
| 2016 | 16 |
| 2017 | 10 |
| 2018 | 9 |
| 2019 | 14 |
| 2020 | 10 |
| 2021 | 7 |
| 2022 | 5 |
| 2023 | 5 |
| 2024 | 3 |
| 2025 | 3 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Transformer Power Management Controllers and Transformer Power Management Methods
US-2019378648-A1 · Dec 12, 2019 · US
Flexible voltage transformation system
US-10483032-B2 · Nov 19, 2019 · US
Reactive power optimization system and method of power grid based on the double-fish-swarm algorithm
US-10439398-B2 · Oct 8, 2019 · US
Longitudinal voltage regulator
US-2019302814-A1 · Oct 3, 2019 · US
Magnetic induction power supply device
US-2019280526-A1 · Sep 12, 2019 · US
Power converter apparatus and methods using adaptive node balancing
US-10381917-B2 · Aug 13, 2019 · US
Methods and systems for using a tapped transformer to generate voltage sags
US-10345831-B2 · Jul 9, 2019 · US
Control system for voltage regulation device
US-2019199098-A1 · Jun 27, 2019 · US
Phase angle and voltage balancing in a multi-phase system
US-10291114-B2 · May 14, 2019 · US
Optimizing power factor correction between voltage regulators
US-10263509-B2 · Apr 16, 2019 · US
Voltage booster isolation transformer system and method of operating the same
US-2019081566-A1 · Mar 14, 2019 · US
Method and apparatus for regulating the voltage of a transformer system
US-2019064858-A1 · Feb 28, 2019 · US
Voltage regulator system and method of use
US-10198013-B2 · Feb 5, 2019 · US
Voltage regulation for multi-phase power systems
US-10177672-B2 · Jan 8, 2019 · US
Solid state regulator and circuit breaker for high-power dc bus distributions
US-2018366974-A1 · Dec 20, 2018 · US
Flexible voltage transformation system
US-2018308632-A1 · Oct 25, 2018 · US
Reactive power optimization system and method of power grid based on the double-fish-swarm algorithm
US-2018309294-A1 · Oct 25, 2018 · US
Power converter apparatus and methods using adaptive node balancing
US-2018275699-A1 · Sep 27, 2018 · US
Voltage regulator system and method of use
US-10082810-B2 · Sep 25, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G05F1/14?
- CPC G05F1/14 is the Cooperative Patent Classification code for “using tap transformers or tap changing inductors as final control devices.”
- How many patents are filed under CPC G05F1/14 (using tap transformers or tap changing inductors as final control devices)?
- Our database includes 94 publications tagged with this CPC code.
- Is patent activity under CPC G05F1/14 growing?
- Publication counts under this code: 3 in 2024 vs 3 in 2025 (latest complete years).