G01R 33/56572
Caused by a distortion of a gradient magnetic field
Official title: {caused by a distortion of a gradient magnetic field, e.g. non-linearity of a gradient magnetic field (G01R33/56509, G01R33/56518, G01R33/56536 take precedence)}
G01R33/56572 (Caused by a distortion of a gradient magnetic field) appears on 274 US grants and 309 published applications in this corpus.
Search patents in G01R- Granted patents
- 274
- Published applications
- 309
- Assignees
- 96
- Inventors
- 531
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 7 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 0 |
| 2002 | 0 | 2 |
| 2003 | 5 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 3 |
| 2006 | 2 | 2 |
| 2007 | 1 | 9 |
| 2008 | 6 | 5 |
| 2009 | 2 | 6 |
| 2010 | 7 | 8 |
| 2011 | 6 | 10 |
| 2012 | 9 | 9 |
| 2013 | 6 | 19 |
| 2014 | 11 | 17 |
| 2015 | 5 | 16 |
| 2016 | 11 | 11 |
| 2017 | 15 | 10 |
| 2018 | 23 | 26 |
| 2019 | 22 | 21 |
| 2020 | 22 | 26 |
| 2021 | 25 | 18 |
| 2022 | 20 | 25 |
| 2023 | 15 | 15 |
| 2024 | 15 | 22 |
| 2025 | 15 | 15 |
| 2026 | 13 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Device and method for prospective correction for gradient pulse shape distortions in MRI imaging6 Oct 2026US 12,754,273 B2Koninklijke Philips N. V.
- 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
- Reducing and correcting magnetic field gradient deviations23 Jun 2026US 12,663,491 B2Siemens Healthineers AG
- System and method for operation and control of electromagnets16 Jun 2026US 12,656,431 B2Synaptive Medical Inc.
- Method, system, processing circuitry, and computer program product for calibrating flip angles of non-excitation rf transmit pulses10 Sep 2026US 2026/0266940 A1Canon Kabushiki Kaisha
- Ascertaining pulses by taking into consideration inhomogeneity regions27 Aug 2026US 2026/0251746 A1
- Computer implemented method, computer program product, computer-readable storage medium, and system for enhancement of the signal-to-noise ratio of a magnetic field evolution4 Jun 2026US 2026/0154882 A1Skope Magnetic Resonance Technologies GMBH
- Cross-term spatiotemporal encoding (xspen) techniques for single-sided mri4 Jun 2026US 2026/0154884 A1Promaxo, Inc.
- Rf receiver assembly with integrated calibration method28 May 2026US 2026/0147072 A1Koninklijke Philips N. V.
Most cited
By later US patents
- MRI apparatus and method using sample filtering based on time shifts caused by temporal variations in magnetic field strength45US 7,626,387 B2Kabushiki Kaisha Toshiba · 2009
- Reduction of Nyquist ghost artifacts in oblique echo planar imaging36US 5,672,969 AGeneral Electric Company · 1997
- Components for reducing image distortion31US 7,684,860 B2Medtronic, Inc. · 2010
- Imaging systems25US 4,315,216 AE M I Limited · 1982
- Correction of artifacts caused by Maxwell terms in slice offset echo planar imaging25US 5,923,168 AGeneral Electric Company · 1999