G01R 33/3873
Using ferromagnetic bodies
Official title: using ferromagnetic bodies {; Passive shimming}
G01R33/3873 (Using ferromagnetic bodies) appears on 411 US grants and 326 published applications in this corpus.
Search patents in G01R- Granted patents
- 411
- Published applications
- 326
- Assignees
- 131
- Inventors
- 563
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 5 | 0 |
| 1987 | 6 | 0 |
| 1988 | 7 | 0 |
| 1989 | 7 | 0 |
| 1990 | 4 | 0 |
| 1991 | 10 | 0 |
| 1992 | 5 | 0 |
| 1993 | 5 | 0 |
| 1994 | 9 | 0 |
| 1995 | 14 | 0 |
| 1996 | 5 | 0 |
| 1997 | 8 | 0 |
| 1998 | 5 | 0 |
| 1999 | 8 | 0 |
| 2000 | 3 | 0 |
| 2001 | 9 | 1 |
| 2002 | 7 | 11 |
| 2003 | 11 | 11 |
| 2004 | 17 | 10 |
| 2005 | 14 | 6 |
| 2006 | 6 | 9 |
| 2007 | 11 | 18 |
| 2008 | 9 | 15 |
| 2009 | 12 | 12 |
| 2010 | 7 | 12 |
| 2011 | 8 | 13 |
| 2012 | 7 | 11 |
| 2013 | 12 | 9 |
| 2014 | 10 | 10 |
| 2015 | 8 | 15 |
| 2016 | 7 | 7 |
| 2017 | 14 | 17 |
| 2018 | 15 | 28 |
| 2019 | 25 | 18 |
| 2020 | 33 | 18 |
| 2021 | 13 | 12 |
| 2022 | 11 | 14 |
| 2023 | 11 | 10 |
| 2024 | 10 | 11 |
| 2025 | 11 | 20 |
| 2026 | 9 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for correcting inhomogeneity of the static magnetic field particularly of the static magnetic field generated by the magnetic structure of a machine for acquiring nuclear magnetic resonance images and MRI system for carrying out such method1 Sep 2026US 12,724,095 B2Esaote S.p.A.
- Magnetic compensation circuit for linear hall sensors1 Sep 2026US 12,724,096 B2Circor Aerospace, Inc.
- Electromagnetic shielding for magnetic resonance imaging methods and apparatus7 Jul 2026US 12,672,791 B2Hyperfine Operations, Inc.
- Iterative shimming for low-field head-optimized MRI2 Jun 2026US 12,644,942 B2Neuro42 Inc.
- Magnetic resonance imaging systems and components thereof26 May 2026US 12,638,527 B2Shanghai United Imaging Healthcare Co., Ltd.
- B0 magnet methods and apparatus for a magnetic resonance imaging system23 Jul 2026US 2026/0211066 A1Hyperfine Operations, Inc.
- Method and apparatus for automatic loading of shim trays25 Jun 2026US 2026/0177649 A1Siemens Healthineers AG
- Shim Parameter Set Ascertainment for a Magnetic Resonance Facility18 Jun 2026US 2026/0169108 A1Siemens Healthineers AG
- Pole piece2 Apr 2026US 2026/0092996 A1Nanalysis Corp.
- Reduced Magnetic Flux Leakage And Increased Magnetic Field Uniformity In Magnetic Resonance Imaging (MRI) Devices19 Mar 2026US 2026/0079222 A1Zepp Europe Holding B.V.
Most cited
By later US patents
- Integrated high-frequency generator system utilizing the magnetic field of the target application219US 8,786,284 B2Bridge12 Technologies, Inc. · 2014
- Superconducting MRI magnet with magnetic flux field homogeneity control126US 5,194,810 AApplied Superconetics, Inc. · 1993
- Method of obtaining information of a specified or target area of a living body near its skin surface by the application of a nuclear magnetic resonance phenomenon123US 4,240,439 AHokkaido University · 1980
- Portable magnetic resonance imaging methods and apparatus116US 10,222,434 B2Hyperfine Research, Inc. · 2019
- Methods and apparatus for magnetic field shimming115US 10,145,913 B2Hyperfine Research, Inc. · 2018