G01R 33/3607
Rf waveform generators
Official title: {RF waveform generators, e.g. frequency generators, amplitude-, frequency- or phase modulators or shifters, pulse programmers, digital to analog converters for the RF signal, means for filtering or attenuating of the RF signal}
G01R33/3607 (Rf waveform generators) appears on 358 US grants and 347 published applications in this corpus.
Search patents in G01R- Granted patents
- 358
- Published applications
- 347
- Assignees
- 157
- Inventors
- 724
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 8 | 0 |
| 1988 | 3 | 0 |
| 1989 | 5 | 0 |
| 1990 | 3 | 0 |
| 1991 | 6 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 2 |
| 2002 | 4 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 1 |
| 2005 | 1 | 5 |
| 2006 | 5 | 6 |
| 2007 | 4 | 4 |
| 2008 | 3 | 9 |
| 2009 | 4 | 9 |
| 2010 | 6 | 6 |
| 2011 | 3 | 9 |
| 2012 | 4 | 14 |
| 2013 | 10 | 9 |
| 2014 | 12 | 13 |
| 2015 | 2 | 21 |
| 2016 | 12 | 16 |
| 2017 | 13 | 21 |
| 2018 | 25 | 38 |
| 2019 | 35 | 33 |
| 2020 | 47 | 19 |
| 2021 | 30 | 29 |
| 2022 | 24 | 14 |
| 2023 | 20 | 17 |
| 2024 | 8 | 19 |
| 2025 | 17 | 15 |
| 2026 | 14 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- 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
- Low-loss switching for circuits, low-loss switching for nuclear magnetic resonance radio frequency coils, methods of use, methods of making, systems, and devices11 Aug 2026US 12,704,568 B2The Texas A&M University System
- MRI apparatus and RF amplifier11 Aug 2026US 12,704,569 B2Canon Kabushiki Kaisha
- Half driving mode for degenerate birdcage coils and ladder coils28 Jul 2026US 12,693,356 B2Quality Electrodynamics, LLC
- Magnetic resonance imaging apparatus1 Oct 2026US 2026/0299062 A1Canon Medical Systems Corporation
- Acquisition of Magnetic Resonance Data1 Oct 2026US 2026/0299063 A1Siemens Healthineers AG
- Nuclear quadrupole resonance spectrometer24 Sep 2026US 2026/0287694 A1Centre National De La Recherche Scientifique
- Magnetic resonance imaging apparatus and amplifier apparatus27 Aug 2026US 2026/0251738 A1Canon Medical Systems Corporation
- Inductive array, oscillator assembly, device, and method for generating and/or detecting a magnetization of a sample13 Aug 2026US 2026/0235540 A1
Most cited
By later US patents
- Integrated high-frequency generator system utilizing the magnetic field of the target application219US 8,786,284 B2Bridge12 Technologies, Inc. · 2014
- Rotatable magnet methods and apparatus for a magnetic resonance imaging system99US 10,310,037 B2Hyperfine Research, Inc. · 2019
- Rotatable magnet methods and apparatus for a magnetic resonance imaging system75US 10,324,147 B2Hyperfine Research, Inc. · 2019
- Field-frequency lock system for magnetic resonance system75US 6,242,915 B1General Electric Company · 2001
- 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