G01R 33/58
Calibration of imaging systems
Official title: Calibration of imaging systems, e.g. using test probes {, Phantoms; Calibration objects or fiducial markers such as active or passive RF coils surrounding an MR active material}
G01R33/58 (Calibration of imaging systems) appears on 798 US grants and 796 published applications in this corpus.
Search patents in G01R- Granted patents
- 798
- Published applications
- 796
- Assignees
- 311
- Inventors
- 1,624
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 4 | 0 |
| 1986 | 6 | 0 |
| 1987 | 13 | 0 |
| 1988 | 8 | 0 |
| 1989 | 12 | 0 |
| 1990 | 7 | 0 |
| 1991 | 9 | 0 |
| 1992 | 8 | 0 |
| 1993 | 3 | 0 |
| 1994 | 5 | 0 |
| 1995 | 11 | 0 |
| 1996 | 6 | 0 |
| 1997 | 8 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 8 | 0 |
| 2001 | 10 | 1 |
| 2002 | 6 | 5 |
| 2003 | 3 | 12 |
| 2004 | 12 | 12 |
| 2005 | 6 | 9 |
| 2006 | 10 | 5 |
| 2007 | 9 | 18 |
| 2008 | 13 | 17 |
| 2009 | 11 | 19 |
| 2010 | 12 | 26 |
| 2011 | 16 | 20 |
| 2012 | 17 | 17 |
| 2013 | 13 | 38 |
| 2014 | 17 | 38 |
| 2015 | 8 | 52 |
| 2016 | 21 | 55 |
| 2017 | 53 | 51 |
| 2018 | 60 | 61 |
| 2019 | 91 | 71 |
| 2020 | 74 | 51 |
| 2021 | 42 | 43 |
| 2022 | 51 | 43 |
| 2023 | 37 | 28 |
| 2024 | 39 | 41 |
| 2025 | 31 | 37 |
| 2026 | 21 | 26 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- 3D printed MRI coil, phantom and shimming element22 Sep 2026US 12,742,839 B2Katholieke Universiteit Leuven
- Interference cancellation method, medium, and device25 Aug 2026US 12,716,975 B2Hangzhou Weiying Medical Technology Co., Ltd.
- Optimized acquisition of measured data by means of magnetic resonance technology25 Aug 2026US 12,716,976 B2Siemens Healthineers AG
- Magnetic resonance imaging apparatus and calibration method thereof11 Aug 2026US 12,704,578 B2FUJIFILM Corporation
- Method for making a heterogeneous breast phantom28 Jul 2026US 12,690,832 B2Imam Abdulrahman Bin Faisal University
- Rigid Body Motion and Background Phase Correction Using GRAPPA Aided Motion Transformed Coil Sensitivity Maps8 Oct 2026US 2026/0309823 A1The Board of Trustees of the Leland Stanford Junior University
- Simulation-based eddy current correction for diffusion weighted imaging8 Oct 2026US 2026/0309824 A1Siemens Healthineers AG
- Cine mri phantom8 Oct 2026US 2026/0309825 A1Modus Medical Devices Inc.
- Bloch-simulator-based joint reconstruction and field inhomogeneity estimation with plug-and-play denoising diffusion model1 Oct 2026US 2026/0299052 A1Siemens Healthineers AG
- Systems and methods for image guidance and device tracking during magnetic resonance imaging24 Sep 2026US 2026/0287691 A1Sunnybrook Research Institute
Most cited
By later US patents
- Radiographic multi-modality skin markers329US 5,469,847 AIzi Corporation · 1995
- Determining multiphase saturations by NMR imaging of multiple nuclides313US 4,769,602 AShell Oil Company · 1988
- Stereotactics apparatus240US 4,923,459 AKabushiki Kaisha Toshiba · 1990
- MR imaging method and apparatus for guiding a catheter206US 5,810,728 AU. S. Philips Corporation · 1998
- Method and apparatus for calibrating a magnetic field generator184US 6,335,617 B12002