G01R 33/0041
Using feed-back or modulation techniques
Official title: {using feed-back or modulation techniques}
G01R33/0041 (Using feed-back or modulation techniques) appears on 229 US grants and 262 published applications in this corpus.
Search patents in G01R- Granted patents
- 229
- Published applications
- 262
- Assignees
- 118
- Inventors
- 452
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 2 | 1 |
| 2012 | 1 | 4 |
| 2013 | 1 | 7 |
| 2014 | 5 | 10 |
| 2015 | 9 | 16 |
| 2016 | 11 | 16 |
| 2017 | 13 | 13 |
| 2018 | 10 | 16 |
| 2019 | 15 | 10 |
| 2020 | 21 | 29 |
| 2021 | 19 | 33 |
| 2022 | 34 | 30 |
| 2023 | 26 | 25 |
| 2024 | 27 | 18 |
| 2025 | 20 | 17 |
| 2026 | 12 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Magnetic field measurement apparatus25 Aug 2026US 12,716,966 B2NEC Corporation
- Magnetoresistive relaxation oscillator type magnetometer11 Aug 2026US 12,704,566 B2MultiDimension Technology Co., Ltd.
- Instrumentation amplifier with base current compensator for improved performance11 Aug 2026US 12,706,573 B2Texas Instruments Incorporated
- Real time monitoring and prediction of motion in MRI23 Jun 2026US 12,663,493 B2Oregon Health & Science University
- Harmonic suppression circuit for tunneling magnetoresistance sensors16 Jun 2026US 12,656,416 B2Wenzhou University
- Hall sensor8 Oct 2026US 2026/0309815 A1Cirrus Logic International Semiconductor Ltd.
- High-accuracy sensor with heterogeneous architecture17 Sep 2026US 2026/0276744 A1Allegro MicroSystems, LLC
- Apparatus and methods for image-guided robotic surgical interventions10 Sep 2026US 2026/0266924 A1Worcester Polytechnic Institute
- Stretchable eddy current sensor and associated methods10 Sep 2026US 2026/0266925 A1General Electric Company
- Xmr sensor with continuous-time coil compensation loop13 Aug 2026US 2026/0235706 A1Allegro MicroSystems, LLC
Most cited
By later US patents
- Detection of passing magnetic articles with a peak-to-peak percentage threshold detector having a forcing circuit and automatic gain control164US 6,297,627 B1Allegro MicroSystems, LLC · 2001
- Magnetic field sensor with automatic sensitivity adjustment141US 8,030,918 B2Allegro MicroSystems, LLC · 2011
- Magnetic field sensor with automatic sensitivity adjustment136US 7,923,996 B2Allegro MicroSystems, LLC · 2011
- Detection of passing magnetic articles with a peak referenced threshold detector121US 6,091,239 AAllegro MicroSystems, LLC · 2000
- Apparatus and method for providing an output signal indicative of a speed of rotation and a direction of rotation as a ferromagnetic object80US 8,624,588 B2Allegro MicroSystems, LLC · 2014