G01R 33/5659
Caused by a distortion of the rf magnetic field
Official title: {caused by a distortion of the RF magnetic field, e.g. spatial inhomogeneities of the RF magnetic field (G01R33/56509, G01R33/56518, G01R33/56536 take precedence)}
G01R33/5659 (Caused by a distortion of the rf magnetic field) appears on 481 US grants and 532 published applications in this corpus.
Search patents in G01R- Granted patents
- 481
- Published applications
- 532
- Assignees
- 163
- Inventors
- 899
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 0 |
| 2002 | 1 | 1 |
| 2003 | 3 | 2 |
| 2004 | 2 | 6 |
| 2005 | 3 | 10 |
| 2006 | 5 | 8 |
| 2007 | 9 | 18 |
| 2008 | 9 | 20 |
| 2009 | 16 | 29 |
| 2010 | 22 | 16 |
| 2011 | 13 | 24 |
| 2012 | 13 | 25 |
| 2013 | 11 | 28 |
| 2014 | 21 | 25 |
| 2015 | 18 | 36 |
| 2016 | 19 | 32 |
| 2017 | 28 | 27 |
| 2018 | 36 | 33 |
| 2019 | 52 | 39 |
| 2020 | 48 | 28 |
| 2021 | 37 | 27 |
| 2022 | 12 | 23 |
| 2023 | 28 | 24 |
| 2024 | 14 | 21 |
| 2025 | 20 | 17 |
| 2026 | 15 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Magnetic resonance imaging with machine-learning based shim settings6 Oct 2026US 12,754,266 B2Koninklijke Philips N. V.
- Magnetic field enhancement assembly and magnetic field enhancement device29 Sep 2026US 12,748,167 B2Beijing Tsinghua Changgung Hospital
- Method for training post-processing device for denoising MRI image and computing device for the same8 Sep 2026US 12,731,226 B2Seoul National University R&Db Foundation
- Interference cancellation method, medium, and device25 Aug 2026US 12,716,975 B2Hangzhou Weiying Medical Technology Co., Ltd.
- MRI apparatus and RF amplifier11 Aug 2026US 12,704,569 B2Canon Kabushiki Kaisha
- Magnetic resonance sequence with free excitation pulse and form-bound refocusing pulses30 Jul 2026US 2026/0219346 A1
- System and method for rf interference removal for optimal mri signal to interference ratio30 Jul 2026US 2026/0219348 A1GE Precision Healthcare LLC
- Method and system for determining a position of a portable mri system23 Jul 2026US 2026/0211068 A1Koninklijke Philips N. V.
- Bilateral orthogonality generative acquisitions18 Jun 2026US 2026/0169112 A1Board of Regents, The University of Texas System
- Magnetic resonance imaging method and magnetic resonance imaging system11 Jun 2026US 2026/0160844 A1GE Precision Healthcare LLC
Most cited
By later US patents
- Magnetic resonance whole body antenna system, elliptically polarized with major ellipse axis tilted/non-horizontal at least when unoccupied by an examination subject132US 8,362,775 B2Siemens Aktiengesellschaft · 2013
- High field magnetic resonance122US 7,800,368 B2Regents of the University of Minnesota · 2010
- Rotatable magnet methods and apparatus for a magnetic resonance imaging system99US 10,310,037 B2Hyperfine Research, Inc. · 2019
- Pulse sequences for low field magnetic resonance80US 10,591,561 B2Hyperfine Research, Inc. · 2020
- Rotatable magnet methods and apparatus for a magnetic resonance imaging system75US 10,324,147 B2Hyperfine Research, Inc. · 2019