G01R 33/1215
Measuring magnetisation
Official title: {Measuring magnetisation; Particular magnetometers therefor (G01R33/14 takes precedence; electrodynamic magnetometers G01R33/028)}
G01R33/1215 (Measuring magnetisation) appears on 108 US grants and 114 published applications in this corpus.
Search patents in G01R- Granted patents
- 108
- Published applications
- 114
- Assignees
- 116
- Inventors
- 347
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 2 | 2 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 4 |
| 2009 | 0 | 3 |
| 2010 | 2 | 5 |
| 2011 | 2 | 5 |
| 2012 | 3 | 5 |
| 2013 | 5 | 7 |
| 2014 | 7 | 8 |
| 2015 | 1 | 4 |
| 2016 | 5 | 2 |
| 2017 | 2 | 9 |
| 2018 | 3 | 7 |
| 2019 | 5 | 7 |
| 2020 | 11 | 7 |
| 2021 | 4 | 5 |
| 2022 | 9 | 12 |
| 2023 | 6 | 6 |
| 2024 | 10 | 5 |
| 2025 | 9 | 3 |
| 2026 | 2 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Audio signals output30 Jun 2026US 12,671,931 B2Hewlett-Packard Development Company, L. P.
- Portable, fixed external field magnetometer for the detection of magnetic signals from samples and the assessment of the amount of magnetic material in the sample6 Jan 2026US 12,517,196 B2Universidad Autonoma De Chile
- Systems and methods for utility locating in a multi-utility environment9 Dec 2025US 12,493,133 B1Seescan, Inc.
- Core assemblies for magnetic saturation detector without requirement for bias current25 Nov 2025US 12,482,599 B2Power Integrations, Inc.
- Mailpiece magnetic ink content recognition detection system21 Oct 2025US 12,449,558 B1Tritek Technologies, Inc.
- Permanent magnet motor demagnetization testing station10 Sep 2026US 2026/0266932 A1GM Global Technology Operations LLC
- Mailpiece magnetic ink content recognition detection system20 Aug 2026US 2026/0243913 A1Tritek Technologies, Inc.
- Demagnetization of working-channel tools in an electromagnetically tracked endoscope30 Jul 2026US 2026/0221326 A1Magnisity Ltd.
- Magnetic coupling degree detection device and electronic control unit16 Jul 2026US 2026/0202444 A1Denso Corporation
- Method for determining a magnetization direction of a wiegand wire, and wiegand sensor arrangement2 Jul 2026US 2026/0186084 A1Fraba B.V.
Most cited
By later US patents
- Magnetic document validator employing remanence and saturation measurements187US 5,068,519 ABrandt, Inc. · 1991
- Method and apparatus for quantitative determination of accumulations of magnetic particles140US 6,518,747 B2Quantum Design, Inc. · 2003
- Torque magnetometer utilizing integrated piezoresistive levers93US 5,798,641 AQuantum Design, Inc. · 1998
- Electrically insulating cantilever magnetometer with mutually isolated and integrated thermometry, background elimination and null detection43US 5,739,686 A1998
- Method and apparatus for detecting demagnetizing time of magnetic device23US 7,471,523 B2System General Corp. · 2008