G01R 33/20
Involving magnetic resonance
Official title: involving magnetic resonance (medical aspects A61B5/055; magnetic resonance gyrometers G01C19/60)
G01R33/20 (Involving magnetic resonance) appears on 20,133 US grants and 19,232 published applications in this corpus.
Search patents in G01R- Granted patents
- 20,133
- Published applications
- 19,232
- Assignees
- 3,407
- Inventors
- 22,056
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 15 | 0 |
| 1977 | 11 | 0 |
| 1978 | 23 | 0 |
| 1979 | 11 | 0 |
| 1980 | 17 | 0 |
| 1981 | 27 | 0 |
| 1982 | 26 | 0 |
| 1983 | 29 | 0 |
| 1984 | 48 | 0 |
| 1985 | 71 | 0 |
| 1986 | 127 | 0 |
| 1987 | 253 | 0 |
| 1988 | 244 | 0 |
| 1989 | 257 | 0 |
| 1990 | 199 | 0 |
| 1991 | 235 | 0 |
| 1992 | 226 | 0 |
| 1993 | 285 | 0 |
| 1994 | 342 | 0 |
| 1995 | 256 | 0 |
| 1996 | 311 | 0 |
| 1997 | 244 | 0 |
| 1998 | 233 | 0 |
| 1999 | 218 | 0 |
| 2000 | 295 | 0 |
| 2001 | 347 | 109 |
| 2002 | 367 | 378 |
| 2003 | 372 | 442 |
| 2004 | 408 | 416 |
| 2005 | 339 | 570 |
| 2006 | 387 | 509 |
| 2007 | 404 | 567 |
| 2008 | 414 | 719 |
| 2009 | 462 | 689 |
| 2010 | 491 | 803 |
| 2011 | 471 | 674 |
| 2012 | 536 | 765 |
| 2013 | 602 | 881 |
| 2014 | 614 | 929 |
| 2015 | 544 | 1110 |
| 2016 | 630 | 968 |
| 2017 | 908 | 994 |
| 2018 | 931 | 995 |
| 2019 | 1299 | 991 |
| 2020 | 1139 | 988 |
| 2021 | 886 | 877 |
| 2022 | 854 | 905 |
| 2023 | 751 | 810 |
| 2024 | 739 | 821 |
| 2025 | 710 | 783 |
| 2026 | 525 | 539 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G01R 33/44Using nuclear magnetic resonance [nmr]12,777
- G01R 33/28Details of apparatus provided for in groups g01r33/44 - g01r33/6410,656
- G01R 33/24For measuring direction or magnitude of magnetic fields or magnetic flux1,098
- G01R 33/60Using electron paramagnetic resonance363
- G01R 33/62Using double resonance126
- G01R 33/64Using cyclotron resonance17
Recent patents
- Recommender system using cognitive pre-testing to select optimal MRI scanning tasks6 Oct 2026US 12,751,624 B2Koninklijke Philips N. V.
- Systems and methods for image acquisition6 Oct 2026US 12,751,683 B2Shanghai United Imaging Healthcare Co., Ltd.
- Single-polymer particles, active molecular complex, method for producing single-polymer particles, method for measuring tumor size, method for measuring fine structure within tumor, method for imaging biological tissue, drug delivery system, and contrast agent kit6 Oct 2026US 12,752,022 B2National Institutes for Quantum Science and Technology
- Magnetic trajectory prediction and position identification6 Oct 2026US 12,752,083 B2Bard Access Systems, Inc.
- NMR characterization of modified drilling fluids6 Oct 2026US 12,754,154 B2Schlumberger Technology Corporation
- Systems and methods for cardiovascular magnetic resonance imaging8 Oct 2026US 2026/0305946 A1Ohio State Innovation Foundation
- Device for microwave measurement of a dielectric discontinuity of a material8 Oct 2026US 2026/0305968 A1Ubt S.R.L
- Lumbar-vertebra magnetic resonance imaging method and apparatus, computer device, readable storage medium, and program product8 Oct 2026US 2026/0305970 A1Hainan General Hospital
- Systems and methods for fabrication of a part with an embedded quantum sensor8 Oct 2026US 2026/0309812 A1Toyota Jidosha Kabushiki Kaisha
- Pcsel magnetometer8 Oct 2026US 2026/0309814 A1II-Vi Delaware, Inc.
Most cited
By later US patents
- Device for seeking an area of interest within a body1,661US 5,188,111 ACatheter Research, Inc. · 1993
- Instrument and method for non-invasive in vivo testing for body fluid constituents1,346US 4,875,486 AAdvanced Techtronics, Inc. · 1989
- MR-compatible devices806US 7,048,716 B1Stanford University · 2006
- Device construction and method facilitating magnetic resonance imaging of foreign objects in a body594US 4,989,608 A1991
- Magnetic resonance imaging method and apparatus for guiding invasive therapy553US 5,647,361 AFonar Corporation · 1997