G01R 33/5616
Using gradient refocusing
Official title: {using gradient refocusing, e.g. EPI}
G01R33/5616 (Using gradient refocusing) appears on 535 US grants and 553 published applications in this corpus.
Search patents in G01R- Granted patents
- 535
- Published applications
- 553
- Assignees
- 175
- Inventors
- 927
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 7 | 0 |
| 1988 | 4 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 7 | 0 |
| 1997 | 5 | 0 |
| 1998 | 4 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 6 | 0 |
| 2002 | 4 | 4 |
| 2003 | 3 | 3 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 3 |
| 2007 | 2 | 11 |
| 2008 | 7 | 23 |
| 2009 | 10 | 16 |
| 2010 | 15 | 20 |
| 2011 | 13 | 19 |
| 2012 | 9 | 20 |
| 2013 | 20 | 19 |
| 2014 | 10 | 22 |
| 2015 | 16 | 34 |
| 2016 | 15 | 44 |
| 2017 | 37 | 48 |
| 2018 | 33 | 36 |
| 2019 | 61 | 34 |
| 2020 | 50 | 46 |
| 2021 | 39 | 27 |
| 2022 | 34 | 29 |
| 2023 | 21 | 27 |
| 2024 | 31 | 27 |
| 2025 | 23 | 21 |
| 2026 | 17 | 19 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- 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
- Method, system and/or computer readable medium for improved magnetic resonance (MR) imaging-based tractography25 Aug 2026US 12,716,974 B2GE Precision Healthcare LLC
- Systems and methods for magnetic resonance imaging18 Aug 2026US 12,710,498 B2Shanghai United Imaging Healthcare Co., Ltd.
- EPI data correction method and device and MRI system11 Aug 2026US 12,704,576 B2Siemens Healthineers AG
- System and method for improved silent multi-gradient echo magnetic resonance imaging28 Jul 2026US 12,693,360 B2GE Precision Healthcare LLC
- 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
- Under-sampling k-space for a three-dimensional echo planar imaging (epi) scan with magnetic resonance27 Aug 2026US 2026/0251745 A1GE Precision Healthcare LLC
- Co-registered parametric mapping using echo-planar imaging (epi) cardiovascular magnetic resonance (cmr)30 Jul 2026US 2026/0219345 A1Siemens Healthineers AG
- Deep learning enabled b0 mapping23 Jul 2026US 2026/0211067 A1Siemens Healthineers AG
Most cited
By later US patents
- MRI method for reducing artifacts using RF pulse at offset frequency101US 7,495,439 B2The General Hospital Corporation · 2009
- Method for imaging acoustically induced rotary saturation with a magnetic resonance imaging system100US 7,956,613 B2The General Hospital Corporation · 2011
- Magnetic resonance imaging with bipolar multi-echo sequences94US 7,777,486 B2The Board of Trustees of the Leland Stanford Junior University · 2010
- Nuclear magnetic resonance apparatus and methods55US 4,165,479 ANational Research Development Corporation · 1979
- Physiological corrections in functional magnetic resonance imaging53US 6,073,041 ARegents of the University of Minnesota · 2000