G01R 33/038
Using permanent magnets
Official title: using permanent magnets, e.g. balances, torsion devices
G01R33/038 (Using permanent magnets) appears on 282 US grants and 276 published applications in this corpus.
Search patents in G01R- Granted patents
- 282
- Published applications
- 276
- Assignees
- 206
- Inventors
- 668
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 7 | 0 |
| 2000 | 3 | 0 |
| 2001 | 6 | 1 |
| 2002 | 6 | 5 |
| 2003 | 6 | 6 |
| 2004 | 3 | 7 |
| 2005 | 6 | 6 |
| 2006 | 6 | 2 |
| 2007 | 6 | 3 |
| 2008 | 3 | 1 |
| 2009 | 1 | 4 |
| 2010 | 0 | 8 |
| 2011 | 3 | 4 |
| 2012 | 4 | 8 |
| 2013 | 6 | 4 |
| 2014 | 9 | 16 |
| 2015 | 8 | 15 |
| 2016 | 11 | 8 |
| 2017 | 12 | 13 |
| 2018 | 11 | 13 |
| 2019 | 9 | 13 |
| 2020 | 22 | 20 |
| 2021 | 20 | 26 |
| 2022 | 18 | 33 |
| 2023 | 21 | 27 |
| 2024 | 22 | 15 |
| 2025 | 17 | 11 |
| 2026 | 9 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Magnetometer heading error estimation11 Aug 2026US 12,704,564 B2Niantic Spatial, Inc.
- Magnetic sensor16 Jun 2026US 12,656,418 B2Resonac Corporation
- Methods and apparatus for autonomous 3D self-assembly, spatial docking and reconfiguration5 May 2026US 12,617,553 B2Massachusetts Institute of Technology
- Refrigerator with automatic door and method for controlling automatic door of refrigerator10 Mar 2026US 12,571,578 B2LG Electronics Inc.
- Refrigerator with automatic door and method for controlling automatic door of refrigerator24 Feb 2026US 12,560,374 B2LG Electronics Inc.
- Magnetic sensor system and position detection device8 Oct 2026US 2026/0309477 A1TDK Corporation
- Magnetic sensor device, rotation detection system including the same, and magnetic field generation device17 Sep 2026US 2026/0280387 A1TDK Corporation
- Increasing signal-to-noise ratio of miniature magneto-mechanical resonators9 Jul 2026US 2026/0191425 A1Koninklijke Philips N. V.
- Systems, methods, and structures for improving magnetic field sensor performance7 May 2026US 2026/0126305 A1Allegro MicroSystems, LLC
- System and method for scanning the condition of a steel cord conveyor belt16 Apr 2026US 2026/0103347 A1
Most cited
By later US patents
- Microscopic tips having stable magnetic moments and disposed on cantilevers for sensing magnetic characteristics of adjacent structures150US 6,448,765 B1Read-Rite Corporation · 2002
- Detector for force and acceleration using resistance element112US 4,967,605 AWacoh Corporation · 1990
- Detector for force/acceleration/magnetism with respect to components in multi-dimensional directions78US 5,437,196 A1995
- Detector for force, acceleration or magnetism with respect to components in multi-dimensional directions70US 5,343,765 A1994
- Fiber optic magnetic sensors69US 4,368,430 ASanders Associates, Inc. · 1983