G01R 33/12
Measuring magnetic properties of articles or specimens of solids or fluids
Official title: Measuring magnetic properties of articles or specimens of solids or fluids (involving magnetic resonance G01R33/20)
G01R33/12 (Measuring magnetic properties of articles or specimens of solids or fluids) appears on 1,594 US grants and 1,612 published applications in this corpus.
Search patents in G01R- Granted patents
- 1,594
- Published applications
- 1,612
- Assignees
- 848
- Inventors
- 3,825
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 15 | 0 |
| 1978 | 6 | 0 |
| 1979 | 3 | 0 |
| 1980 | 5 | 0 |
| 1981 | 5 | 0 |
| 1982 | 7 | 0 |
| 1983 | 5 | 0 |
| 1984 | 6 | 0 |
| 1985 | 3 | 0 |
| 1986 | 8 | 0 |
| 1987 | 7 | 0 |
| 1988 | 3 | 0 |
| 1989 | 10 | 0 |
| 1990 | 17 | 0 |
| 1991 | 17 | 0 |
| 1992 | 14 | 0 |
| 1993 | 16 | 0 |
| 1994 | 10 | 0 |
| 1995 | 11 | 0 |
| 1996 | 11 | 0 |
| 1997 | 18 | 0 |
| 1998 | 17 | 0 |
| 1999 | 19 | 0 |
| 2000 | 16 | 0 |
| 2001 | 17 | 12 |
| 2002 | 20 | 15 |
| 2003 | 15 | 13 |
| 2004 | 16 | 20 |
| 2005 | 19 | 27 |
| 2006 | 15 | 21 |
| 2007 | 27 | 33 |
| 2008 | 28 | 64 |
| 2009 | 20 | 70 |
| 2010 | 37 | 92 |
| 2011 | 42 | 82 |
| 2012 | 59 | 80 |
| 2013 | 62 | 83 |
| 2014 | 76 | 64 |
| 2015 | 57 | 80 |
| 2016 | 73 | 68 |
| 2017 | 62 | 82 |
| 2018 | 73 | 86 |
| 2019 | 89 | 83 |
| 2020 | 89 | 89 |
| 2021 | 68 | 93 |
| 2022 | 83 | 84 |
| 2023 | 95 | 99 |
| 2024 | 73 | 65 |
| 2025 | 77 | 60 |
| 2026 | 41 | 47 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G01R 33/1284Spin resolved measurements295
- G01R 33/1269Of molecules labeled with magnetic beads207
- G01R 33/1207Testing individual magnetic storage devices197
- G01R 33/1276Of magnetic particles158
- G01R 33/18Measuring magnetostrictive properties112
- G01R 33/1215Measuring magnetisation108
- G01R 33/1223Measuring permeability, i.e. permeameters100
- G01R 33/16Measuring susceptibility90
All 14 subgroupsShow fewer
- G01R 33/1238Measuring superconductive properties70
- G01R 33/14Measuring or plotting hysteresis curves53
- G01R 33/1292Measuring domain wall position or domain wall motion36
- G01R 33/123Measuring loss due to hysteresis34
- G01R 33/1253Measuring galvano-magnetic properties33
- G01R 33/1261Using levitation techniques5
Recent patents
- High-Q factor, multiferroic resonant magnetic field sensors and limits on strain modulated sensing performance29 Sep 2026US 12,751,210 B2The Trustees of the University of Pennsylvania
- Magnetic particle imaging device, magnetic particle imaging method, and storage medium storing magnetic particle imaging program22 Sep 2026US 12,742,837 B2Mitsubishi Electric Corporation
- Dynamical liquid sensors25 Aug 2026US 12,716,967 B2Toyota Jidosha Kabushiki Kaisha
- Method to calculate performance of a magnetic element comprising a ferromagnetic layer exchange-coupled to an antiferromagnetic layer25 Aug 2026US 12,716,970 B2Allegro MicroSystems, LLC
- Magnetic particle imaging apparatus25 Aug 2026US 12,716,971 B2Mitsubishi Electric Corporation
- Magnetic detection system17 Sep 2026US 2026/0276754 A1TDK Corporation
- Magnetic domain structure analyzing device, magnetic domain structure analyzing method, program, method of manufacturing grain-oriented electromagnetic steel sheet, grain-oriented electromagnetic steel sheet, and iron core17 Sep 2026US 2026/0276755 A1Nippon Steel Corporation
- Permanent magnet motor demagnetization testing station10 Sep 2026US 2026/0266932 A1GM Global Technology Operations LLC
- Permeability spectrum testing device and method for micron-sized sample based on near-field microwave probe3 Sep 2026US 2026/0259284 A1Lanzhou University
- Magnet integration for quantum sensor27 Aug 2026US 2026/0251735 A1
Most cited
By later US patents
- Methods of amplifying and sequencing nucleic acids960US 7,323,305 B2454 Life Sciences Corporation · 2008
- Bead emulsion nucleic acid amplification447US 7,842,457 B2454 Life Sciences Corporation · 2010
- Combinatorial synthesis of novel materials365US 5,985,356 ASymyx Technologies, Inc. · 1999
- Double ended sequencing337US 7,244,567 B2454 Life Sciences Corporation · 2007
- Systems and methods for the combinatorial synthesis of novel materials320US 6,045,671 ASymyx Technologies, Inc. · 2000