G01R 33/385
Using gradient magnetic field coils
Official title: using gradient magnetic field coils
G01R33/385 (Using gradient magnetic field coils) appears on 1,649 US grants and 1,443 published applications in this corpus.
Search patents in G01R- Granted patents
- 1,649
- Published applications
- 1,443
- Assignees
- 329
- Inventors
- 2,037
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 3 | 0 |
| 1983 | 4 | 0 |
| 1984 | 5 | 0 |
| 1985 | 0 | 0 |
| 1986 | 9 | 0 |
| 1987 | 17 | 0 |
| 1988 | 11 | 0 |
| 1989 | 20 | 0 |
| 1990 | 16 | 0 |
| 1991 | 15 | 0 |
| 1992 | 20 | 0 |
| 1993 | 23 | 0 |
| 1994 | 43 | 0 |
| 1995 | 24 | 0 |
| 1996 | 31 | 0 |
| 1997 | 21 | 0 |
| 1998 | 15 | 0 |
| 1999 | 18 | 0 |
| 2000 | 33 | 0 |
| 2001 | 34 | 11 |
| 2002 | 29 | 23 |
| 2003 | 43 | 30 |
| 2004 | 29 | 31 |
| 2005 | 28 | 51 |
| 2006 | 36 | 28 |
| 2007 | 31 | 32 |
| 2008 | 35 | 37 |
| 2009 | 33 | 31 |
| 2010 | 18 | 35 |
| 2011 | 21 | 34 |
| 2012 | 18 | 33 |
| 2013 | 23 | 51 |
| 2014 | 29 | 51 |
| 2015 | 28 | 143 |
| 2016 | 34 | 82 |
| 2017 | 77 | 97 |
| 2018 | 102 | 70 |
| 2019 | 141 | 93 |
| 2020 | 136 | 96 |
| 2021 | 77 | 89 |
| 2022 | 78 | 74 |
| 2023 | 78 | 76 |
| 2024 | 59 | 66 |
| 2025 | 65 | 46 |
| 2026 | 38 | 33 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G01R 33/3852Gradient amplifiers378
- G01R 33/3854Means for active and/or passive vibration damping or acoustical noise suppression in359
- G01R 33/3856Means for cooling the gradient coils or thermal shielding of the gradient269
- G01R 33/3858Manufacture and installation of gradient coils, means for providing mechanical support to162
Recent patents
- Device and method for prospective correction for gradient pulse shape distortions in MRI imaging6 Oct 2026US 12,754,273 B2Koninklijke Philips N. V.
- Multi-core integrated magnetic resonance imaging system with distributed, parallel, and scalable architecture15 Sep 2026US 12,736,600 B2Harbin Medical University
- Permanent magnet assembly for magnetic resonance imaging with non-ferromagnetic frame18 Aug 2026US 12,710,496 B2Hyperfine Operations, Inc.
- System and method for T1 relaxation enhanced steady-state MRI28 Jul 2026US 12,690,770 B2Endeavor Health Clinical Operations
- Radio frequency receiver array coil for magnetic resonance imaging system, method of use of the coil, and MRI system comprising the coil28 Jul 2026US 12,693,354 B2Koninklijke Philips N. V.
- Method for Operating a Magnetic Resonance Device, Magnetic Resonance Device, Computer Program and Storage Medium8 Oct 2026US 2026/0309820 A1Siemens Healthineers AG
- Receive coil device and magnetic resonance imaging apparatus1 Oct 2026US 2026/0299057 A1FUJIFILM Corporation
- Acquisition of Magnetic Resonance Data1 Oct 2026US 2026/0299063 A1Siemens Healthineers AG
- Power controller, system and method for medical imaging systems17 Sep 2026US 2026/0276765 A1Koninklijke Philips N. V.
- Apparatus for cooling a superconducting magnet and a method for operation3 Sep 2026US 2026/0259288 A1
Most cited
By later US patents
- Power amplifier with multiple switched output stages, and method and driver for operating same228US 5,949,668 ASiemens Aktiengesellschaft · 1999
- Low field magnetic resonance imaging methods and apparatus120US 9,817,093 B2Hyperfine Research, Inc. · 2017
- Ferromagnetic augmentation for magnetic resonance imaging119US 9,625,544 B2Hyperfine Research, Inc. · 2017
- Methods and apparatus for thermal management of an MRI component by reducing eddy currents118US 9,645,210 B2Hyperfine Research, Inc. · 2017
- Portable magnetic resonance imaging methods and apparatus116US 10,222,434 B2Hyperfine Research, Inc. · 2019