G01R 33/56554
Caused by acquiring plural, differently encoded echo signals after one rf excitation
Official title: {caused by acquiring plural, differently encoded echo signals after one RF excitation, e.g. correction for readout gradients of alternating polarity in EPI}
G01R33/56554 (Caused by acquiring plural, differently encoded echo signals after one rf excitation) appears on 263 US grants and 204 published applications in this corpus.
Search patents in G01R- Granted patents
- 263
- Published applications
- 204
- Assignees
- 81
- Inventors
- 362
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 4 | 0 |
| 1996 | 15 | 0 |
| 1997 | 2 | 0 |
| 1998 | 5 | 0 |
| 1999 | 10 | 0 |
| 2000 | 9 | 0 |
| 2001 | 8 | 1 |
| 2002 | 3 | 4 |
| 2003 | 7 | 3 |
| 2004 | 6 | 4 |
| 2005 | 2 | 1 |
| 2006 | 7 | 4 |
| 2007 | 3 | 7 |
| 2008 | 6 | 7 |
| 2009 | 3 | 5 |
| 2010 | 4 | 3 |
| 2011 | 8 | 8 |
| 2012 | 1 | 5 |
| 2013 | 4 | 6 |
| 2014 | 5 | 4 |
| 2015 | 4 | 10 |
| 2016 | 4 | 9 |
| 2017 | 7 | 11 |
| 2018 | 7 | 10 |
| 2019 | 18 | 11 |
| 2020 | 13 | 23 |
| 2021 | 24 | 8 |
| 2022 | 11 | 19 |
| 2023 | 19 | 14 |
| 2024 | 11 | 10 |
| 2025 | 10 | 11 |
| 2026 | 6 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Echo planar imaging method capable of reducing image distortion6 Oct 2026US 12,754,272 B2Shanghai Jiao Tong University
- EPI data correction method and device and MRI system11 Aug 2026US 12,704,576 B2Siemens Healthineers AG
- System and method for confidence maps for quantitative mapping with magnetic resonance imaging30 Jun 2026US 12,669,563 B2Wisconsin Alumni Research Foundation
- Artificial intelligence distortion correction for magnetic resonance echo planar imaging16 Jun 2026US 12,656,439 B2Siemens Healthineers AG
- Method for reducing artifacts in image data reconstructed from measurement data of an object under examination captured using an echo-planar acquisition technique (EPI)26 May 2026US 12,638,534 B2Siemens Healthineers AG
- Mr imaging using partial echo acquisition27 Aug 2026US 2026/0251741 A1Koninklijke Philips N. V.
- Enhanced Echo-Planar Magnetic Resonance Imaging4 Jun 2026US 2026/0153583 A1Siemens Healthineers AG
- Computer-Implemented Method for Processing a Magnetic Resonance Data Set of an Acquisition Area, Image Processing Facility, Computer Program and Electronically Readable Data Carrier14 May 2026US 2026/0133275 A1Siemens Healthineers AG
- Magnetic resonance imaging apparatus, magnetic resonance imaging method, and computer-readable non-volatile storage medium storing magnetic resonance imaging program7 May 2026US 2026/0126507 A1Canon Medical Systems Corporation
- Method for Multispectral Magnetic Resonance Imaging30 Apr 2026US 2026/0118461 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
- Ultra-fast multi-section MRI using gradient and spin echo (grase) imaging97US 5,270,654 A1993
- Magnetic resonance scan calibration and reconstruction technique for multi-shot, multi-echo imaging49US 5,742,163 APicker International, Inc. · 1998
- Correction of NMR data acquired by an echo-planar technique44US 5,151,656 AGeneral Electric Company · 1992
- EPI calibration method to minimize ghosting in reconstructed images44US 6,700,374 B1Koninklijke Philips Electronics N. V. · 2004