G01R 33/5618
Using both rf and gradient refocusing
Official title: {using both RF and gradient refocusing, e.g. GRASE}
G01R33/5618 (Using both rf and gradient refocusing) appears on 91 US grants and 76 published applications in this corpus.
Search patents in G01R- Granted patents
- 91
- Published applications
- 76
- Assignees
- 65
- Inventors
- 185
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 2 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 2 |
| 2009 | 0 | 2 |
| 2010 | 1 | 3 |
| 2011 | 2 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 2 |
| 2015 | 0 | 6 |
| 2016 | 1 | 4 |
| 2017 | 1 | 4 |
| 2018 | 6 | 6 |
| 2019 | 11 | 5 |
| 2020 | 5 | 10 |
| 2021 | 7 | 10 |
| 2022 | 8 | 4 |
| 2023 | 5 | 7 |
| 2024 | 10 | 5 |
| 2025 | 7 | 2 |
| 2026 | 3 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for ascertaining flip angles, magnetic resonance apparatus, and computer program product22 Sep 2026US 12,742,845 B2Siemens Healthineers AG
- Methods for magnetic resonance imaging of nanoconstructs and uses thereof28 Jul 2026US 12,690,779 B2Kuva Labs Inc.
- Method and system for improving image contrast in fast driven equilibrium inversion recovery imaging7 Apr 2026US 12,596,164 B2Balgrist Campus AG
- Distortion-free diffusion and quantitative magnetic resonance imaging with blip up-down acquisition of spin- and gradient-echoes2 Dec 2025US 12,487,307 B2The General Hospital Corporation
- Highly accelerated sub-millimeter resolution 3D GRASE with controlled T2 blurring in T2-weighted functional MRI at 7 tesla18 Nov 2025US 12,474,425 B2Advanced MRI Technologies, LLC
- System and method to reduce specific absorption rate in magnetic resonance imaging30 Jan 2025US 2025/0035721 A1GE Precision Healthcare LLC
- Methods for magnetic resonance imaging of nanoconstructs and uses thereof2 Jan 2025US 2025/0000384 A1Mi2 Holding LLC
- Imaging systems and methods15 Aug 2024US 2024/0268701 A1Shanghai United Imaging Healthcare Co., Ltd.
- Method and system for improving image contrast in fast driven equilibrium inversion recovery imaging27 Jun 2024US 2024/0210507 A1Balgrist Campus AG
- Method for ascertaining flip angles, magnetic resonance apparatus, and computer program product27 Jun 2024US 2024/0210508 A1Siemens Healthineers AG
Most cited
By later US patents
- Ultra-fast multi-section MRI using gradient and spin echo (grase) imaging97US 5,270,654 A1993
- Magnetic resonance imaging system47US 4,746,864 AKabushiki Kaisha Toshiba · 1988
- Pulse sequence generation systems and methods of reducing acoustic noise in magnetic resonance systems26US 11,460,526 B1GE Precision Healthcare LLC · 2022
- Method and apparatus for high speed magnetic resonance imaging with improved image quality21US 5,361,028 AKabushiki Kaisha Toshiba · 1994
- Method of echo volume imaging and MRI system using the same21US 5,779,636 AKabushiki Kaisha Toshiba · 1998