Systems and methods for fault detection in variable differential transformers
US-2023417845-A1 · Dec 28, 2023 · US
by movement of core or part of core relative to the windings as a whole
by movement of core or part of core relative to the windings as a whole · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01F21/06 |
| Official title | by movement of core or part of core relative to the windings as a whole |
| Display label | by movement of core or part of core relative to the windings as a whole |
| Total patents | 79 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 6 |
| 2017 | 5 |
| 2018 | 3 |
| 2019 | 7 |
| 2020 | 8 |
| 2021 | 12 |
| 2022 | 10 |
| 2023 | 8 |
| 2024 | 7 |
| 2025 | 8 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Adjustable inductor and method of using the same
US-11810705-B2 · Nov 7, 2023 · US
Rotary variable differential transformer
US-2023326647-A1 · Oct 12, 2023 · US
Variable inductive displacement sensor, associated device, system and aircraft
US-2023068680-A1 · Mar 2, 2023 · US
Optimal lvdt/rvdt demodulation using a hybrid algorithm
US-2022397428-A1 · Dec 15, 2022 · US
Adjustable inductor and method of using the same
US-11456101-B2 · Sep 27, 2022 · US
Method for manufacturing a device having a three-dimensional magnetic structure
US-11417448-B2 · Aug 16, 2022 · US
Dual rotary variable differential transducer
US-2022244077-A1 · Aug 4, 2022 · US
Noise filter and electrical and electronic equipment
US-11381213-B2 · Jul 5, 2022 · US
Magnetically actuated tunable soft electronics
US-11380469-B2 · Jul 5, 2022 · US
Accuracy improvement in linear variable differential transformer based position measurements
US-2022187103-A1 · Jun 16, 2022 · US
Emc filter for electromagnetic regulation of converter and manufacturing method thereof
US-2022166310-A1 · May 26, 2022 · US
Current transformer, protection device and electrical circuit breaker including such a transformer
US-11295885-B2 · Apr 5, 2022 · US
Torque detection sensor
US-2022003617-A1 · Jan 6, 2022 · US
Resolver/LVDT odd harmonic distortion compensation
US-11209290-B2 · Dec 28, 2021 · US
High speed AC input sensor conversion
US-11092464-B2 · Aug 17, 2021 · US
Transformer with test circuit
US-2021190546-A1 · Jun 24, 2021 · US
Variable inductor
US-11043323-B2 · Jun 22, 2021 · US
Coil arrangement
US-11043841-B2 · Jun 22, 2021 · US
C-shaped cylindrical core for linear variable differential transformer (LVDT) probes
US-10996078-B2 · May 4, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01F21/06?
- CPC H01F21/06 is the Cooperative Patent Classification code for “by movement of core or part of core relative to the windings as a whole.”
- How many patents are filed under CPC H01F21/06 (by movement of core or part of core relative to the windings as a whole)?
- Our database includes 79 publications tagged with this CPC code.
- Is patent activity under CPC H01F21/06 growing?
- Publication counts under this code: 7 in 2024 vs 8 in 2025 (latest complete years).