G01N 24/081
Making measurements of geologic samples
Official title: {Making measurements of geologic samples, e.g. measurements of moisture, pH, porosity, permeability, tortuosity or viscosity}
G01N24/081 (Making measurements of geologic samples) appears on 806 US grants and 757 published applications in this corpus.
Search patents in G01N- Granted patents
- 806
- Published applications
- 757
- Assignees
- 183
- Inventors
- 1,146
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 4 | 0 |
| 1995 | 4 | 0 |
| 1996 | 4 | 0 |
| 1997 | 5 | 0 |
| 1998 | 6 | 0 |
| 1999 | 4 | 0 |
| 2000 | 25 | 0 |
| 2001 | 19 | 6 |
| 2002 | 30 | 19 |
| 2003 | 34 | 24 |
| 2004 | 15 | 23 |
| 2005 | 25 | 19 |
| 2006 | 13 | 18 |
| 2007 | 17 | 19 |
| 2008 | 18 | 31 |
| 2009 | 17 | 25 |
| 2010 | 26 | 27 |
| 2011 | 14 | 17 |
| 2012 | 14 | 21 |
| 2013 | 21 | 39 |
| 2014 | 19 | 30 |
| 2015 | 15 | 37 |
| 2016 | 23 | 38 |
| 2017 | 36 | 57 |
| 2018 | 36 | 40 |
| 2019 | 85 | 53 |
| 2020 | 52 | 56 |
| 2021 | 62 | 35 |
| 2022 | 39 | 34 |
| 2023 | 47 | 30 |
| 2024 | 30 | 21 |
| 2025 | 20 | 20 |
| 2026 | 17 | 18 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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
- In situ concentration of hydrocarbons in rock22 Sep 2026US 12,742,768 B2Saudi Arabian Oil Company
- Apparatus for obtaining nmr measurements of restricted diffusion in two orthogonal directions25 Aug 2026US 12,717,058 B1Vinegar Technologies LLC
- Estimation of paleo-depositional cycles in organic-rich chalk by NMR restricted diffusion11 Aug 2026US 12,704,470 B1Vinegar Technologies LLC
- Method for quantitative evaluation on sensitivity of shale oil and gas reservoir to injected fluids28 Jul 2026US 12,693,249 B2Northeast Petroleum University
- Engineering bionic experimental system and method for evaluating adaptive borehole plugging effect based on nmr24 Sep 2026US 2026/0286832 A1Taiyuan University of Technology
- Pressure-preserved coring tool, use method, and reservoir analysis method17 Sep 2026US 2026/0275823 A1China National Petroleum Corporation
- Characterizing pore size distribution by integrating nmr and acoustic measurements17 Sep 2026US 2026/0276571 A1Schlumberger Technology Corporation
- Identification method of haina polysaccharide by nuclear magnetic resonance spectroscopy10 Sep 2026US 2026/0266748 A1Harbin Hongdoushan Bio-Pharm Co., Ltd.
- System and method for measuring liquid permeability20 Aug 2026US 2026/0243648 A1
Most cited
By later US patents
- NMR logging of natural gas reservoirs289US 6,094,048 AShell Oil Company · 2000
- Nuclear magnetic resonance pulse sequences for use with borehole logging tools181US 5,023,551 ASchlumberger-Doll Research · 1991
- Magnetic resonance method for characterizing fluid samples withdrawn from subsurface formations158US 6,346,813 B1Schlumberger Technology Corporation · 2002
- Borehole measurement of NMR characteristics of earth formations141US 5,055,787 ASchlumberger Technology Corporation · 1991
- System for logging a well during the drilling thereof139US 5,280,243 ANumar Corporation · 1994