Magnetic field measurement systems and methods of making and using
US-2019391213-A1 · Dec 26, 2019 · US
Measuring gradient
Measuring gradient · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G01R33/022 |
| Official title | Measuring gradient |
| Display label | Measuring gradient |
| Total patents | 273 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 12 |
| 2017 | 16 |
| 2018 | 20 |
| 2019 | 22 |
| 2020 | 38 |
| 2021 | 35 |
| 2022 | 35 |
| 2023 | 37 |
| 2024 | 30 |
| 2025 | 20 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
System and method for fast imaging in magnetic resonance imaging
US-2019350487-A1 · Nov 21, 2019 · US
Digital amplifier
US-10444309-B2 · Oct 15, 2019 · US
Metamaterial-based electromagnetic field measurement device
US-10422913-B2 · Sep 24, 2019 · US
Mineral insulated combined flux loop and b-dot wire
US-2019214155-A1 · Jul 11, 2019 · US
Stray magnetic field robust magnetic field sensor and system
US-2019079141-A1 · Mar 14, 2019 · US
Array of uavs with magnetometers
US-2018348393-A1 · Dec 6, 2018 · US
Magnetic sensor using multiple gradiometers for angle detection
US-2018335294-A1 · Nov 22, 2018 · US
Gradient coil assembly for a magnetic resonance apparatus
US-2018335493-A1 · Nov 22, 2018 · US
Observation method and observation device
US-2018328887-A1 · Nov 15, 2018 · US
Self-calibrating solid-state magnetometer for vectorized field sensing via zero-field spin-dependent recombination
US-2018321333-A1 · Nov 8, 2018 · US
Low-power magnetometer assemblies with high offset stability
US-10094888-B2 · Oct 9, 2018 · US
Magnetometer apparatus and associated methods
US-10094663-B2 · Oct 9, 2018 · US
Method, device and system for detecting magnetic field interference
US-2018265219-A1 · Sep 20, 2018 · US
Nanoscale scanning sensors
US-2018246143-A1 · Aug 30, 2018 · US
Redundant magnetic angle sensor with improved accuracy
US-10048328-B2 · Aug 14, 2018 · US
Nanoscale scanning sensors
US-10041971-B2 · Aug 7, 2018 · US
Variable permeability magnetometer systems and methods for aerospace applications
US-10036784-B2 · Jul 31, 2018 · US
Measuring instruments, systems and magnetic gradiometers
US-2018209266-A1 · Jul 26, 2018 · US
Gradiometer system and method
US-2018210039-A1 · Jul 26, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G01R33/022?
- CPC G01R33/022 is the Cooperative Patent Classification code for “Measuring gradient.”
- How many patents are filed under CPC G01R33/022 (Measuring gradient)?
- Our database includes 273 publications tagged with this CPC code.
- Is patent activity under CPC G01R33/022 growing?
- Publication counts under this code: 30 in 2024 vs 20 in 2025 (latest complete years).