G01R 33/4616
Using specific rf pulses or specific modulation schemes
Official title: {using specific RF pulses or specific modulation schemes, e.g. stochastic excitation, adiabatic RF pulses, composite pulses, binomial pulses, Shinnar-le-Roux pulses, spectrally selective pulses not being used for spatial selection}
G01R33/4616 (Using specific rf pulses or specific modulation schemes) appears on 134 US grants and 136 published applications in this corpus.
Search patents in G01R- Granted patents
- 134
- Published applications
- 136
- Assignees
- 100
- Inventors
- 298
- Latest grant
- 30 Jun 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 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 5 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 5 |
| 2004 | 3 | 1 |
| 2005 | 3 | 4 |
| 2006 | 2 | 2 |
| 2007 | 2 | 5 |
| 2008 | 5 | 0 |
| 2009 | 1 | 3 |
| 2010 | 1 | 4 |
| 2011 | 5 | 3 |
| 2012 | 0 | 6 |
| 2013 | 2 | 5 |
| 2014 | 2 | 4 |
| 2015 | 7 | 8 |
| 2016 | 2 | 4 |
| 2017 | 6 | 10 |
| 2018 | 7 | 18 |
| 2019 | 12 | 7 |
| 2020 | 13 | 8 |
| 2021 | 11 | 11 |
| 2022 | 6 | 6 |
| 2023 | 4 | 5 |
| 2024 | 7 | 6 |
| 2025 | 6 | 3 |
| 2026 | 3 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for fast quantitative NMR spectrum acquisition30 Jun 2026US 12,669,562 B2Bruker BioSpin GmbH
- Systems and methods for radio frequency (RF) based spatial encoding in magnetic resonance imaging using frequency-modulated RF pulses12 May 2026US 12,625,209 B2Regents of the University of Minnesota
- Chemical-shift-selective phase-compensated adiabatic 2-refocusing pulse pair and spectral editing methods for ultra-high-field magnetic resonance spectroscopy6 Jan 2026US 12,517,203 B2UniversitäT Bern
- Method for selectively detecting multiple groups and/or molecules simultaneously by preparing multiple nuclear spin singlet and/or singlet orders23 Dec 2025US 12,504,494 B2East China Normal University
- Systems and methods for volumetric acquisition in a single-sided MRI scanner30 Sep 2025US 12,429,539 B2Promaxo, Inc.
- Systems and methods for radio frequency (rf) based spatial encoding in magnetic resonance imaging using frequency-modulated rf pulses20 Aug 2026US 2026/0243856 A1
- Systems and methods for volumetric acquisition in a single-sided mri scanner30 Jul 2026US 2026/0219342 A1Promaxo, Inc.
- Magnetic resonance imaging apparatus, data acquisition method, and computer-readable, nonvolatile storage medium storing data acquisition program7 May 2026US 2026/0126504 A1Canon Medical Systems Corporation
- Methods and systems to reduce magnetic resonance imaging sensitivity to magnetic field inhomogeneities30 Apr 2026US 2026/0118458 A1
- Digital Operation of a Magnetic Resonance System9 Apr 2026US 2026/0098925 A1Quantum Valley Investment Fund LP
Most cited
By later US patents
- Method and apparatus for using stochastic excitation and a superconducting quantum interference device (SAUID) to perform wideband frequency response measurements108US 5,343,147 AQuantum Magnetics, Inc. · 1994
- Determining bound and unbound fluid volumes using nuclear magnetic resonance pulse sequences83US 5,363,041 ASchlumberger Technology Corporation · 1994
- Apparatus and method for generating short pulses for NMR and NQR processing44US 5,804,967 AThe United States of America as represented by the Secretary of the Navy · 1998
- Method and apparatus for high resolution ex-situ NMR spectroscopy37US 6,674,282 B2The Regents of the University of California · 2004
- Determining bound and unbound fluid volumes using nuclear magnetic resonance pulse sequences35US 5,596,274 ASchlumberger Technology Corporation · 1997