Device, system and method for obtaining a magnetic measurement with permanent magnets
US-10847295-B2 · Nov 24, 2020 · US
of main or gradient magnetic field
of main or gradient magnetic field · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G01R33/421 |
| Official title | of main or gradient magnetic field |
| Display label | of main or gradient magnetic field |
| Total patents | 156 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 8 |
| 2017 | 8 |
| 2018 | 11 |
| 2019 | 22 |
| 2020 | 22 |
| 2021 | 24 |
| 2022 | 18 |
| 2023 | 13 |
| 2024 | 15 |
| 2025 | 8 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Magnetic coil support in magnetic resonance imaging method and apparatus
US-10832856-B2 · Nov 10, 2020 · US
Magnetic coil support in magnetic resonance imaging method and apparatus
US-2020211764-A1 · Jul 2, 2020 · US
Radiation therapy system and method
US-2020147412-A1 · May 14, 2020 · US
Ringing reduction in a nuclear magnetic resonance logging tool
US-2020116889-A1 · Apr 16, 2020 · US
Mri magnet and apparatus
US-2020064423-A1 · Feb 27, 2020 · US
Magnetic resonance imaging apparatus and magnetic resonance imaging method
US-2020041600-A1 · Feb 6, 2020 · US
Cryocooler and magnetic shield
US-2020027633-A1 · Jan 23, 2020 · US
Magnetic shield room
US-2019387647-A1 · Dec 19, 2019 · US
Shutting assembly for closing an entrance of an MRI device
US-10495704-B2 · Dec 3, 2019 · US
Systems and methods for linear accelerator radiotherapy with magnetic resonance imaging
US-10463884-B2 · Nov 5, 2019 · US
Method and apparatus for shielding a linear accelerator and a magnetic resonance imaging device from each other
US-10463883-B2 · Nov 5, 2019 · US
System for reduction of a magnetic fringe field of a magnetic resonance imaging device
US-10401452-B2 · Sep 3, 2019 · US
Transmitting antenna for a magnetic resonance device
US-2019257896-A1 · Aug 22, 2019 · US
Superconducting coil support device and method and apparatus including superconducting coil support device
US-10365338-B2 · Jul 30, 2019 · US
Method and apparatus for shielding a linear accelerator and a magnetic resonance imaging device from each other
US-2019217126-A1 · Jul 18, 2019 · US
Portable NMR device for detecting an oil concentration in water
US-10345251-B2 · Jul 9, 2019 · US
Device, system and method for obtaining a magnetic measurement with permanent magnets
US-2019170840-A1 · Jun 6, 2019 · US
Device, system and method for obtaining a magnetic measurement with permanent magnets
US-2019172620-A1 · Jun 6, 2019 · US
Electromagnet assembly
US-2019172619-A1 · Jun 6, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G01R33/421?
- CPC G01R33/421 is the Cooperative Patent Classification code for “of main or gradient magnetic field.”
- How many patents are filed under CPC G01R33/421 (of main or gradient magnetic field)?
- Our database includes 156 publications tagged with this CPC code.
- Is patent activity under CPC G01R33/421 growing?
- Publication counts under this code: 15 in 2024 vs 8 in 2025 (latest complete years).