G01R 33/02
Measuring direction or magnitude of magnetic fields or magnetic flux
Official title: Measuring direction or magnitude of magnetic fields or magnetic flux (G01R33/20 takes precedence)
G01R33/02 (Measuring direction or magnitude of magnetic fields or magnetic flux) appears on 9,798 US grants and 9,628 published applications in this corpus.
Search patents in G01R- Granted patents
- 9,798
- Published applications
- 9,628
- Assignees
- 2,565
- Inventors
- 14,277
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 25 | 0 |
| 1977 | 30 | 0 |
| 1978 | 25 | 0 |
| 1979 | 10 | 0 |
| 1980 | 13 | 0 |
| 1981 | 31 | 0 |
| 1982 | 18 | 0 |
| 1983 | 24 | 0 |
| 1984 | 20 | 0 |
| 1985 | 31 | 0 |
| 1986 | 38 | 0 |
| 1987 | 54 | 0 |
| 1988 | 31 | 0 |
| 1989 | 45 | 0 |
| 1990 | 41 | 0 |
| 1991 | 64 | 0 |
| 1992 | 56 | 0 |
| 1993 | 69 | 0 |
| 1994 | 71 | 0 |
| 1995 | 96 | 0 |
| 1996 | 109 | 0 |
| 1997 | 114 | 0 |
| 1998 | 119 | 0 |
| 1999 | 124 | 0 |
| 2000 | 126 | 0 |
| 2001 | 173 | 49 |
| 2002 | 173 | 148 |
| 2003 | 162 | 210 |
| 2004 | 188 | 247 |
| 2005 | 138 | 195 |
| 2006 | 200 | 221 |
| 2007 | 192 | 273 |
| 2008 | 214 | 347 |
| 2009 | 200 | 375 |
| 2010 | 241 | 311 |
| 2011 | 258 | 272 |
| 2012 | 276 | 344 |
| 2013 | 293 | 340 |
| 2014 | 306 | 415 |
| 2015 | 343 | 466 |
| 2016 | 412 | 459 |
| 2017 | 481 | 476 |
| 2018 | 382 | 518 |
| 2019 | 495 | 547 |
| 2020 | 542 | 638 |
| 2021 | 531 | 545 |
| 2022 | 570 | 532 |
| 2023 | 521 | 504 |
| 2024 | 440 | 479 |
| 2025 | 441 | 425 |
| 2026 | 242 | 292 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G01R 33/06Using galvano-magnetic devices6,491
- G01R 33/032Using magneto-optic devices728
- G01R 33/0206Three-component magnetometers586
- G01R 33/035Using superconductive devices541
- G01R 33/028Electrodynamic magnetometers473
- G01R 33/04Using the flux-gate principle432
- G01R 33/038Using permanent magnets282
- G01R 33/022Measuring gradient279
Recent patents
- Using magnetic-sensor data to correct for INS drift6 Oct 2026US 12,754,020 B2Astra Navigation, Inc.
- Current sensor for multiple currents6 Oct 2026US 12,754,215 B2Melexis Technologies SA
- Magnetic sensor assembly6 Oct 2026US 12,754,256 B2APPLIED Materials.Inc.
- D2D spatial understanding with electric magnets6 Oct 2026US 12,754,257 B2Intel Corporation
- Three-dimensional on-chip magnetic sensor for oscillating magnetic fields6 Oct 2026US 12,754,258 B2California Institute of Technology
- Magnetic sensor system and position detection device8 Oct 2026US 2026/0309477 A1TDK Corporation
- Angular magnetic field sensor device with linear output response8 Oct 2026US 2026/0309809 A1Allegro MicroSystems, LLC
- Systems and methods for fabrication of a part with an embedded quantum sensor8 Oct 2026US 2026/0309812 A1Toyota Jidosha Kabushiki Kaisha
- Function estimation protocols with photonic sensors8 Oct 2026US 2026/0309813 A1
- Pcsel magnetometer8 Oct 2026US 2026/0309814 A1II-Vi Delaware, Inc.
Most cited
By later US patents
- Multiple sensors with one sensor affecting a second sensor's output or interpretation1,559US 9,757,128 B2Ethicon, Inc. · 2017
- Multiple motor control for powered medical device1,555US 9,788,836 B2Ethicon, Inc. · 2017
- Adjunct with integrated sensors to quantify tissue compression1,540US 9,724,094 B2Ethicon, Inc. · 2017
- Monitoring device degradation based on component evaluation1,519US 9,737,301 B2Ethicon, Inc. · 2017
- Polarity of hall magnet to identify cartridge type1,445US 10,016,199 B2Ethicon, Inc. · 2018