G01R 33/323
Detection of mr without the use of rf or microwaves
Official title: {Detection of MR without the use of RF or microwaves, e.g. force-detected MR, thermally detected MR, MR detection via electrical conductivity, optically detected MR}
G01R33/323 (Detection of mr without the use of rf or microwaves) appears on 222 US grants and 272 published applications in this corpus.
Search patents in G01R- Granted patents
- 222
- Published applications
- 272
- Assignees
- 146
- Inventors
- 577
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 1 |
| 2006 | 4 | 6 |
| 2007 | 3 | 2 |
| 2008 | 1 | 1 |
| 2009 | 1 | 7 |
| 2010 | 3 | 7 |
| 2011 | 5 | 3 |
| 2012 | 5 | 4 |
| 2013 | 6 | 12 |
| 2014 | 4 | 7 |
| 2015 | 2 | 6 |
| 2016 | 5 | 10 |
| 2017 | 12 | 8 |
| 2018 | 12 | 18 |
| 2019 | 15 | 20 |
| 2020 | 13 | 23 |
| 2021 | 21 | 21 |
| 2022 | 22 | 28 |
| 2023 | 25 | 20 |
| 2024 | 20 | 31 |
| 2025 | 16 | 22 |
| 2026 | 17 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Radiation-detected zero- to ultralow-field nuclear magnetic resonance22 Sep 2026US 12,742,742 B2Cern - European Organization for Nuclear Research
- Vapor cells having optical windows with multilayer coatings15 Sep 2026US 12,736,570 B2Quantum Valley Ideas Laboratories
- System and methods for ultrafast widefield quantum sensing using neuromorphic vision sensors8 Sep 2026US 12,730,165 B2The University of Hong Kong
- Sensor device comprising a source of fluorescence coupled to a fluorescence collector and magnetometer comprising said device1 Sep 2026US 12,724,093 B2Kwan-Tek
- MRI and MEG detection with a single optically pumped magnetometer21 Jul 2026US 12,687,594 B2Honeywell International Inc.
- Improved spectrometer or imaging assembly1 Oct 2026US 2026/0299058 A1Npl Management Limited
- Quantum magnetic sensing technologies, systems and methods using the same17 Sep 2026US 2026/0276760 A1Battelle Memorial Institute
- Magnetic field sensor comprising a sensor circuit board20 Aug 2026US 2026/0243855 A1
- Nuclear magnetic resonance sensing device and nuclear magnetic resonance sensing method13 Aug 2026US 2026/0235709 A1Kyoto University
- Light guide for scanning quantum material13 Aug 2026US 2026/0235711 A1Toyota Jidosha Kabushiki Kaisha
Most cited
By later US patents
- Method and apparatus for using stochastic excitation and a superconducting quantum interference device (SAUID) to perform wideband frequency response measurements108US 5,343,147 AQuantum Magnetics, Inc. · 1994
- Optically integrated biosensor based on optically detected magnetic resonance78US 8,193,808 B2Hewlett-Packard Development Company, L. P. · 2012
- SQUID detected NMR and MRI at ultralow fields73US 6,885,192 B2The Regents of the University of California · 2005
- Electric potential sensor72US 8,054,061 B2The University of Sussex · 2011
- SQUID detected NMR and MRI at ultralow fields67US 7,116,102 B2The Regents of the University of California · 2006