G01R 33/46
Nmr spectroscopy
Official title: NMR spectroscopy
G01R33/46 (Nmr spectroscopy) appears on 1,157 US grants and 1,221 published applications in this corpus.
Search patents in G01R- Granted patents
- 1,157
- Published applications
- 1,221
- Assignees
- 637
- Inventors
- 2,808
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 5 | 0 |
| 1979 | 3 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 7 | 0 |
| 1983 | 7 | 0 |
| 1984 | 7 | 0 |
| 1985 | 7 | 0 |
| 1986 | 4 | 0 |
| 1987 | 15 | 0 |
| 1988 | 16 | 0 |
| 1989 | 6 | 0 |
| 1990 | 8 | 0 |
| 1991 | 14 | 0 |
| 1992 | 14 | 0 |
| 1993 | 24 | 0 |
| 1994 | 20 | 0 |
| 1995 | 5 | 0 |
| 1996 | 14 | 0 |
| 1997 | 11 | 0 |
| 1998 | 12 | 0 |
| 1999 | 12 | 0 |
| 2000 | 15 | 0 |
| 2001 | 15 | 5 |
| 2002 | 19 | 25 |
| 2003 | 19 | 41 |
| 2004 | 24 | 32 |
| 2005 | 22 | 33 |
| 2006 | 16 | 29 |
| 2007 | 18 | 35 |
| 2008 | 24 | 29 |
| 2009 | 19 | 30 |
| 2010 | 16 | 48 |
| 2011 | 28 | 49 |
| 2012 | 18 | 40 |
| 2013 | 32 | 58 |
| 2014 | 34 | 54 |
| 2015 | 38 | 67 |
| 2016 | 33 | 50 |
| 2017 | 45 | 68 |
| 2018 | 55 | 105 |
| 2019 | 102 | 69 |
| 2020 | 78 | 67 |
| 2021 | 61 | 56 |
| 2022 | 40 | 54 |
| 2023 | 45 | 53 |
| 2024 | 50 | 51 |
| 2025 | 38 | 41 |
| 2026 | 28 | 32 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G01R 33/465Applied to biological material350
- G01R 33/4625Processing of acquired signals292
- G01R 33/4616Using specific rf pulses or specific modulation schemes134
- G01R 33/4608Rf excitation sequences for enhanced detection124
- G01R 33/4633Sequences for multi-dimensional nmr106
- G01R 33/4641Sequences for nmr spectroscopy of samples with ultrashort relaxation times such as39
Recent patents
- Method for source rock maturity determination using static high-field nuclear magnetic resonance spectroscopy29 Sep 2026US 12,748,063 B2Saudi Arabian Oil Company
- Radiation-detected zero- to ultralow-field nuclear magnetic resonance22 Sep 2026US 12,742,742 B2Cern - European Organization for Nuclear Research
- Broadband method for signal amplification of magnetic resonance contrast agents within seconds and their purification22 Sep 2026US 12,742,844 B2Max-Planck-Gesellschaft Zur FöRderung Der Wissenschaften E. V.
- Modification of air/fluid flow around nuclear magnetic resonance probe and methods of use11 Aug 2026US 12,704,472 B1JEOL Ltd.
- NMR measurement apparatus21 Jul 2026US 12,687,599 B2JEOL Ltd.
- Nmr measurement of glycoproteins1 Oct 2026US 2026/0298851 A1Universitaet Zu Luebeck
- Nuclear quadrupole resonance spectrometer24 Sep 2026US 2026/0287694 A1Centre National De La Recherche Scientifique
- Systems and methods of analyzing and interfacing with combined imaging and spectroscopy data for the brain17 Sep 2026US 2026/0272302 A1BrainSpec Inc.
- Identification method of haina polysaccharide by nuclear magnetic resonance spectroscopy10 Sep 2026US 2026/0266748 A1Harbin Hongdoushan Bio-Pharm Co., Ltd.
- Paramagnetic sodium nmr macrocyclic-based biosensors, and associated methods3 Sep 2026US 2026/0256388 A1
Most cited
By later US patents
- Instrument and method for non-invasive in vivo testing for body fluid constituents1,346US 4,875,486 AAdvanced Techtronics, Inc. · 1989
- MRI compatible pulse oximetry system206US 5,323,776 APicker International, Inc. · 1994
- Method and apparatus for measuring classes and subclasses of lipoproteins153US 5,343,389 ANorth Carolina State University · 1994
- System and method for the noninvasive identification and display of breast lesions and the like144US 5,003,979 AUniversity of Virginia · 1991
- Apparatus and methodology for determining oxygen in biological systems139US 5,494,030 ATrustees of Dartmouth College · 1996