G01R 33/56
Image enhancement or correction
Official title: Image enhancement or correction, e.g. subtraction or averaging techniques {, e.g. improvement of signal-to-noise ratio and resolution}
G01R33/56 (Image enhancement or correction) appears on 8,663 US grants and 8,822 published applications in this corpus.
Search patents in G01R- Granted patents
- 8,663
- Published applications
- 8,822
- Assignees
- 1,629
- Inventors
- 9,781
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 10 | 0 |
| 1985 | 21 | 0 |
| 1986 | 43 | 0 |
| 1987 | 85 | 0 |
| 1988 | 76 | 0 |
| 1989 | 69 | 0 |
| 1990 | 79 | 0 |
| 1991 | 86 | 0 |
| 1992 | 70 | 0 |
| 1993 | 99 | 0 |
| 1994 | 126 | 0 |
| 1995 | 82 | 0 |
| 1996 | 103 | 0 |
| 1997 | 80 | 0 |
| 1998 | 82 | 0 |
| 1999 | 68 | 0 |
| 2000 | 89 | 0 |
| 2001 | 117 | 37 |
| 2002 | 113 | 125 |
| 2003 | 130 | 159 |
| 2004 | 118 | 138 |
| 2005 | 104 | 173 |
| 2006 | 133 | 175 |
| 2007 | 137 | 221 |
| 2008 | 159 | 313 |
| 2009 | 176 | 301 |
| 2010 | 211 | 370 |
| 2011 | 201 | 307 |
| 2012 | 266 | 345 |
| 2013 | 293 | 398 |
| 2014 | 277 | 430 |
| 2015 | 256 | 533 |
| 2016 | 313 | 495 |
| 2017 | 445 | 473 |
| 2018 | 451 | 496 |
| 2019 | 642 | 507 |
| 2020 | 586 | 502 |
| 2021 | 456 | 439 |
| 2022 | 431 | 454 |
| 2023 | 360 | 418 |
| 2024 | 382 | 395 |
| 2025 | 371 | 380 |
| 2026 | 259 | 238 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G01R 33/565Correction of image distortions3,033
- G01R 33/561By reduction of the scanning time, i.e. fast acquiring systems3,006
- G01R 33/563Of moving material2,672
- G01R 33/5608Data processing and visualization specially adapted for mr2,250
- G01R 33/5601Involving use of a contrast agent for contrast manipulation990
- G01R 33/567Gated by physiological signals , i.e. synchronization of acquired mr data with827
- G01R 33/5602By filtering or weighting based on different relaxation times within the sample548
- G01R 33/5607By reducing the nmr signal of a particular spin species389
Recent patents
- Magnetic resonance imaging with machine-learning based shim settings6 Oct 2026US 12,754,266 B2Koninklijke Philips N. V.
- System and method for generating water-fat separated image6 Oct 2026US 12,754,267 B2GE Precision Healthcare LLC
- Magnetic resonance imaging methods for depicting mixtures of chemically shifted and on-resonance moieties6 Oct 2026US 12,754,268 B2Duke University
- Reducing peripheral nerve stimulation in a subject during a magnetic resonance imaging scan6 Oct 2026US 12,754,269 B2Siemens Healthineers AG
- Interleaved flow-sensitive dephasing (IFSD) for enhanced blood flow suppression and preserved T1-weighted contrast and overall signal intensity in 3D turbo spin-echo imaging6 Oct 2026US 12,754,270 B2University of Southern California
- Systems and methods for cardiovascular magnetic resonance imaging8 Oct 2026US 2026/0305946 A1Ohio State Innovation Foundation
- Method for Operating a Magnetic Resonance Device, Magnetic Resonance Device, Computer Program and Storage Medium8 Oct 2026US 2026/0309820 A1Siemens Healthineers AG
- Magnetic resonance imaging apparatus, image processing apparatus, image processing method, and program8 Oct 2026US 2026/0309822 A1FUJIFILM Corporation
- 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
Most cited
By later US patents
- Device construction and method facilitating magnetic resonance imaging of foreign objects in a body594US 4,989,608 A1991
- Tracking system to monitor the position and orientation of a device using multiplexed magnetic resonance detection462US 5,318,025 AGeneral Electric Company · 1994
- ECG amplifier and cardiac pacemaker for use during magnetic resonance imaging439US 5,217,010 AThe Johns Hopkins University · 1993
- Assessing the condition of a joint and assessing cartilage loss420US 7,184,814 B2The Board of Trustees of the Leland Stanford Junior University · 2007
- Method and system for patient-specific modeling of blood flow402US 8,315,812 B2HeartFlow, Inc. · 2012