G01F 1/716
Using electron paramagnetic resonance [epr] or nuclear magnetic resonance [nmr]
Official title: using electron paramagnetic resonance [EPR] or nuclear magnetic resonance [NMR]
G01F1/716 (Using electron paramagnetic resonance [epr] or nuclear magnetic resonance [nmr]) appears on 97 US grants and 64 published applications in this corpus.
Search patents in G01F- Granted patents
- 97
- Published applications
- 64
- Assignees
- 51
- Inventors
- 164
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 5 | 0 |
| 1986 | 6 | 0 |
| 1987 | 3 | 0 |
| 1988 | 6 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 5 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 1 |
| 2006 | 0 | 4 |
| 2007 | 0 | 0 |
| 2008 | 2 | 2 |
| 2009 | 1 | 1 |
| 2010 | 0 | 0 |
| 2011 | 2 | 3 |
| 2012 | 2 | 3 |
| 2013 | 1 | 3 |
| 2014 | 2 | 7 |
| 2015 | 1 | 6 |
| 2016 | 6 | 7 |
| 2017 | 3 | 7 |
| 2018 | 3 | 2 |
| 2019 | 8 | 2 |
| 2020 | 4 | 3 |
| 2021 | 3 | 2 |
| 2022 | 3 | 7 |
| 2023 | 4 | 0 |
| 2024 | 2 | 2 |
| 2025 | 1 | 2 |
| 2026 | 3 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Multiphase flow metering system and method28 Jul 2026US 12,693,146 B2PetroChina Company Limited
- Magnetic resonance methods and devices for characterizing a pattern of flow of a fluid17 Mar 2026US 12,578,291 B1University of New Brunswick
- Magnetic resonance methods and devices for characterizing rheological properties of a fluid24 Feb 2026US 12,560,665 B1University of New Brunswick
- Multiphase flow meter18 Feb 2025US 12,228,437 B2Saudi Arabian Oil Company
- Method for determining a liquid portion of a flowing medium with a nuclear magnetic flowmeter10 Sep 2024US 12,085,432 B2
- Nuclear magnetic flowmeter14 Aug 2025US 2025/0258027 A1Krohne AG
- Multiphase flow metering system and method27 Mar 2025US 2025/0102339 A1PetroChina Company Limited
- Method and flowmeter for detecting a flow time of a fluid21 Nov 2024US 2024/0385020 A1Fraunhofer Gesellschaft Zur FöRderung Der Angewandten Forschunge E. V.
- Multiphase flow meter31 Oct 2024US 2024/0361166 A1Aramco Innovations LLG
- NMR Measurement Unit Fixable Within A Process Channel15 Dec 2022US 2022/0397619 A1Kaakkois-Suomen Ammattikorkeakoulu Oy
Most cited
By later US patents
- Method of obtaining internal information of a measuring target from the out-side by the application of a nuclear magnetic resonance phenomenon71US 3,932,805 AKichizo Niwa · 1976
- Method for measuring and imaging fluid flow63US 4,777,957 AGeneral Electric Company · 1988
- Rapid pulse NMR cut meter62US 4,785,245 AEngineering Measurement Company · 1988
- Nuclear magnetic resonance net organic flowmeter62US 4,901,018 A1990
- Measurement of flow fractions, flow velocities, and flow rates of a multiphase fluid using NMR sensing49US 6,046,587 ASouthwest Research Institute · 2000