Sensors
US-10144987-B2 · Dec 4, 2018 · US
Electrodynamic magnetometers
Electrodynamic magnetometers · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G01R33/028 |
| Official title | Electrodynamic magnetometers |
| Display label | Electrodynamic magnetometers |
| Total patents | 216 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 11 |
| 2016 | 19 |
| 2017 | 22 |
| 2018 | 19 |
| 2019 | 16 |
| 2020 | 26 |
| 2021 | 18 |
| 2022 | 25 |
| 2023 | 24 |
| 2024 | 23 |
| 2025 | 12 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Magnetic sensor using multiple gradiometers for angle detection
US-2018335294-A1 · Nov 22, 2018 · US
Variable permeability magnetometer systems and methods for aerospace applications
US-10036784-B2 · Jul 31, 2018 · US
Method for providing parameter for coil design and apparatus using the same
US-2018203950-A1 · Jul 19, 2018 · US
Magnetism measurement device
US-10012705-B2 · Jul 3, 2018 · US
Hall sensor and sensing method, and corresponding device
US-9952291-B2 · Apr 24, 2018 · US
Systems and methods of detecting a change in object presence in a magnetic field
US-9912201-B2 · Mar 6, 2018 · US
Magnetic sensor system
US-9864019-B2 · Jan 9, 2018 · US
Linear variable displacement transformer (lvdt) with improved linearity using extreme end booster winding
US-2017352464-A1 · Dec 7, 2017 · US
Linear positioning system utilizing helically polarized magnet
US-9835695-B2 · Dec 5, 2017 · US
Extended kalman filter based autonomous magnetometer calibration
US-2017343349-A1 · Nov 30, 2017 · US
Linear positioning system utilizing helically polarized magnet
US-2017299665-A1 · Oct 19, 2017 · US
Magnetic field detection sensor
US-9791522-B2 · Oct 17, 2017 · US
Magnetic Field Sensor and Electronic Circuit That Pass Amplifier Current Through a Magnetoresistance Element
US-2017285117-A1 · Oct 5, 2017 · US
System and method for detecting objects
US-9772422-B2 · Sep 26, 2017 · US
Magnetic sensor including a lorentz force transducer driven at a frequency different from the resonance frequency, and method for driving a lorentz force transducer
US-2017234940-A1 · Aug 17, 2017 · US
Triaxial magnetic field sensor
US-9733316-B2 · Aug 15, 2017 · US
Magnetic field sensor and electronic circuit that pass amplifier current through a magnetoresistance element
US-9720054-B2 · Aug 1, 2017 · US
Digital geologic compass/inclinometer system and method
US-2017211934-A1 · Jul 27, 2017 · US
System for Measuring the Concentration of Magnetic Ballast in a Slurry
US-2017199155-A1 · Jul 13, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G01R33/028?
- CPC G01R33/028 is the Cooperative Patent Classification code for “Electrodynamic magnetometers.”
- How many patents are filed under CPC G01R33/028 (Electrodynamic magnetometers)?
- Our database includes 216 publications tagged with this CPC code.
- Is patent activity under CPC G01R33/028 growing?
- Publication counts under this code: 23 in 2024 vs 12 in 2025 (latest complete years).