G01R 33/5615
Echo train techniques involving acquiring plural, differently encoded, echo signals after one
Official title: {Echo train techniques involving acquiring plural, differently encoded, echo signals after one RF excitation, e.g. using gradient refocusing in echo planar imaging [EPI], RF refocusing in rapid acquisition with relaxation enhancement [RARE] or using both RF and gradient refocusing in gradient and spin echo imaging [GRASE]}
G01R33/5615 (Echo train techniques involving acquiring plural, differently encoded, echo signals after one) appears on 1,171 US grants and 1,160 published applications in this corpus.
Search patents in G01R- Granted patents
- 1,171
- Published applications
- 1,160
- Assignees
- 294
- Inventors
- 1,594
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 4 | 0 |
| 1987 | 12 | 0 |
| 1988 | 5 | 0 |
| 1989 | 3 | 0 |
| 1990 | 5 | 0 |
| 1991 | 6 | 0 |
| 1992 | 5 | 0 |
| 1993 | 10 | 0 |
| 1994 | 16 | 0 |
| 1995 | 11 | 0 |
| 1996 | 19 | 0 |
| 1997 | 13 | 0 |
| 1998 | 8 | 0 |
| 1999 | 7 | 0 |
| 2000 | 12 | 0 |
| 2001 | 11 | 2 |
| 2002 | 20 | 12 |
| 2003 | 8 | 9 |
| 2004 | 6 | 4 |
| 2005 | 5 | 8 |
| 2006 | 9 | 10 |
| 2007 | 16 | 26 |
| 2008 | 14 | 51 |
| 2009 | 31 | 43 |
| 2010 | 33 | 52 |
| 2011 | 27 | 43 |
| 2012 | 33 | 42 |
| 2013 | 46 | 44 |
| 2014 | 24 | 45 |
| 2015 | 34 | 72 |
| 2016 | 27 | 71 |
| 2017 | 71 | 74 |
| 2018 | 71 | 67 |
| 2019 | 114 | 81 |
| 2020 | 94 | 94 |
| 2021 | 78 | 64 |
| 2022 | 80 | 62 |
| 2023 | 42 | 49 |
| 2024 | 52 | 48 |
| 2025 | 50 | 48 |
| 2026 | 32 | 39 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- 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
- Method for ascertaining flip angles, magnetic resonance apparatus, and computer program product22 Sep 2026US 12,742,845 B2Siemens Healthineers AG
- Pointwise encoding time reduction with radial acquisition (PETRA) techniques with reduced computational complexity8 Sep 2026US 12,730,170 B2Siemens Healthineers AG
- System and method for distortion and motion artifact-free diffusion imaging using single-shot diffusion-prepared turbo-spin-echo sequence with spiral-ring readouts and magnitude stabilizers8 Sep 2026US 12,730,171 B2University of Virginia Patent Foundation
- System and method for concurrent X-nuclei and H-nuclei magnetic resonance imaging25 Aug 2026US 12,716,973 B2The Regents of the University of California
- System and method for improved silent multi-gradient echo magnetic resonance imaging1 Oct 2026US 2026/0299068 A1GE Precision Healthcare LLC
- Magnetic resonance imaging apparatus and control method thereof1 Oct 2026US 2026/0299071 A1FUJIFILM Corporation
- Quantitative measurement of the perivascular space for cns and brain disorders17 Sep 2026US 2026/0272303 A1Northeastern University
- Correcting the quantification bias in magnetization-prepared imaging10 Sep 2026US 2026/0266939 A1The Johns Hopkins University
- Variable saturation gradient-based three-dimensional cest or z-spectrum magnetic resonance imaging method and device3 Sep 2026US 2026/0259291 A1Tsinghua University
Most cited
By later US patents
- Tracking system to monitor the position and orientation of a device using multiplexed magnetic resonance detection462US 5,318,025 AGeneral Electric Company · 1994
- Tracking system to monitor the position and orientation of a device using magnetic resonance detection of a sample contained within the device391US 5,271,400 AGeneral Electric Company · 1993
- Tracking system to monitor the position of a device using multiplexed magnetic resonance detection253US 5,353,795 AGeneral Electric Company · 1994
- Magnetic resonance (MR) angiography using a faraday catheter236US 5,419,325 AGeneral Electric Company · 1995
- Tracking system and pulse sequences to monitor the position of a device using magnetic resonance187US 5,307,808 AGeneral Electric Company · 1994