G01R 33/3621
Nmr receivers or demodulators
Official title: {NMR receivers or demodulators, e.g. preamplifiers, means for frequency modulation of the MR signal using a digital down converter, means for analog to digital conversion [ADC] or for filtering or processing of the MR signal such as bandpass filtering, resampling, decimation or interpolation}
G01R33/3621 (Nmr receivers or demodulators) appears on 539 US grants and 498 published applications in this corpus.
Search patents in G01R- Granted patents
- 539
- Published applications
- 498
- Assignees
- 166
- Inventors
- 926
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 5 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 6 | 0 |
| 1988 | 8 | 0 |
| 1989 | 9 | 0 |
| 1990 | 3 | 0 |
| 1991 | 8 | 0 |
| 1992 | 4 | 0 |
| 1993 | 4 | 0 |
| 1994 | 4 | 0 |
| 1995 | 7 | 0 |
| 1996 | 8 | 0 |
| 1997 | 7 | 0 |
| 1998 | 3 | 0 |
| 1999 | 5 | 0 |
| 2000 | 3 | 0 |
| 2001 | 6 | 1 |
| 2002 | 7 | 9 |
| 2003 | 8 | 8 |
| 2004 | 4 | 1 |
| 2005 | 4 | 5 |
| 2006 | 5 | 12 |
| 2007 | 3 | 11 |
| 2008 | 14 | 21 |
| 2009 | 12 | 15 |
| 2010 | 18 | 23 |
| 2011 | 11 | 14 |
| 2012 | 10 | 21 |
| 2013 | 19 | 20 |
| 2014 | 13 | 18 |
| 2015 | 18 | 33 |
| 2016 | 15 | 31 |
| 2017 | 19 | 25 |
| 2018 | 26 | 33 |
| 2019 | 49 | 31 |
| 2020 | 41 | 31 |
| 2021 | 37 | 30 |
| 2022 | 33 | 24 |
| 2023 | 26 | 13 |
| 2024 | 9 | 30 |
| 2025 | 21 | 24 |
| 2026 | 16 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Radio frequency receiver array for magnetic resonance imaging6 Oct 2026US 12,754,265 B2Koninklijke Philips N. V.
- Multi-core integrated magnetic resonance imaging system with distributed, parallel, and scalable architecture15 Sep 2026US 12,736,600 B2Harbin Medical University
- Magnetic resonance imaging apparatus18 Aug 2026US 12,710,492 B2Canon Kabushiki Kaisha
- Magnetic resonance receiver coil array with sensor node18 Aug 2026US 12,710,493 B2Koninklijke Philips N. V.
- Radio frequency (RF) assembly with planar resonator11 Aug 2026US 12,704,570 B2Koninklijke Philips N. V.
- Nuclear quadrupole resonance spectrometer24 Sep 2026US 2026/0287694 A1Centre National De La Recherche Scientifique
- Nuclear magnetic resonance sensing device and nuclear magnetic resonance sensing method13 Aug 2026US 2026/0235709 A1Kyoto University
- Signal transmission circuit, optical communication module, and system for magnetic resonance imaging30 Jul 2026US 2026/0219341 A1GE Precision Healthcare LLC
- Wireless Clock Synchronization Device and Method for Magnetic Resonance Imaging, and Magnetic Resonance Imaging System2 Jul 2026US 2026/0186087 A1Siemens Healthineers AG
- Local coil with analog-digital converter, mixer, oscillator, and decimator18 Jun 2026US 2026/0169106 A1
Most cited
By later US patents
- Configurable matrix receiver for MRI178US 6,977,502 B1Fonar Corporation · 2005
- MRI system with dynamic receiver gain112US 5,451,876 AGeneral Electric Company · 1995
- Intracavity probe and interface device for MRI imaging and spectroscopy100US 5,355,087 AMedrad, Inc. · 1994
- In vivo imaging and oxymetry by pulsed radiofrequency paramagnetic resonance74US 5,865,746 AThe United States of America as represented by the Department of Health and Human Services · 1999
- Nuclear magnetic resonanace inspection apparatus and its method62US 5,384,536 AHitachi, Ltd. · 1995