G01N 9/32
Investigating density or specific gravity of materials: by using flow properties of
Official title: by using flow properties of fluids, e.g. flow through tubes or apertures
G01N9/32 (Investigating density or specific gravity of materials: by using flow properties of) appears on 145 US grants and 149 published applications in this corpus.
Search patents in G01N- Granted patents
- 145
- Published applications
- 149
- Assignees
- 100
- Inventors
- 368
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 3 | 4 |
| 2003 | 3 | 3 |
| 2004 | 1 | 3 |
| 2005 | 2 | 3 |
| 2006 | 5 | 1 |
| 2007 | 1 | 2 |
| 2008 | 2 | 1 |
| 2009 | 2 | 2 |
| 2010 | 1 | 1 |
| 2011 | 0 | 2 |
| 2012 | 0 | 2 |
| 2013 | 0 | 7 |
| 2014 | 3 | 4 |
| 2015 | 1 | 9 |
| 2016 | 11 | 11 |
| 2017 | 6 | 5 |
| 2018 | 9 | 3 |
| 2019 | 8 | 7 |
| 2020 | 2 | 9 |
| 2021 | 6 | 12 |
| 2022 | 8 | 15 |
| 2023 | 7 | 10 |
| 2024 | 16 | 14 |
| 2025 | 15 | 12 |
| 2026 | 6 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Sensor and method for determining fractions of oil, water, and solids in drilling fluid in real time23 Jun 2026US 12,663,409 B2
- Method and measuring device for determining a viscosity measurement value, as well as a method and measuring arrangement for determining a volumetric flow measurement value19 May 2026US 12,631,537 B2Endress + Hauser Flowtec AG
- Methods of analyzing one or more agricultural materials, and systems thereof3 Mar 2026US 12,566,121 B2Precision Planting LLC
- Methods of analyzing one or more agricultural materials, and systems thereof24 Feb 2026US 12,560,520 B2Precision Planting LLC
- Methods of analyzing one or more agricultural materials, and systems thereof10 Feb 2026US 12,546,695 B2Precision Planting LLC
- Coriolis meter apparatus and methods for the characterization of multiphase fluids30 Jul 2026US 2026/0219085 A1Corvera, LLC
- Method for cleaning a flowmeter23 Jul 2026US 2026/0208242 A1Endress + Hauser Flowtec AG
- Method and apparatus for monitoring a liquid loading process16 Jul 2026US 2026/0200716 A1BASF SE
- Mass gauge measurement device via fiber bragg gratings based on coriolis effect18 Jun 2026US 2026/0168835 A1
- Correcting mass flow and density measurements from coriolis meters operating on bubbly liquids4 Jun 2026US 2026/0153371 A1Corvera, LLC
Most cited
By later US patents
- Method and apparatus for characterizing materials by using a mechanical resonator57US 6,494,079 B1Symyx Technologies, Inc. · 2002
- Mass-volume vortex flowmeter49US 5,152,181 A1992
- Method and apparatus for measuring the relative density of gases48US 4,677,841 APrecision Measurement, Inc. · 1987
- Liquid droplet dispensing37US 6,669,909 B2Allegro Technologies Limited · 2003
- Determining wellbore fluid properties30US 9,410,877 B2Halliburton Energy Services.Inc. · 2016