G01N 9/24
Investigating density or specific gravity of materials: by observing the transmission of
Official title: by observing the transmission of wave or particle radiation through the material
G01N9/24 (Investigating density or specific gravity of materials: by observing the transmission of) appears on 408 US grants and 378 published applications in this corpus.
Search patents in G01N- Granted patents
- 408
- Published applications
- 378
- Assignees
- 292
- Inventors
- 949
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 8 | 0 |
| 1988 | 2 | 0 |
| 1989 | 6 | 0 |
| 1990 | 10 | 0 |
| 1991 | 7 | 0 |
| 1992 | 6 | 0 |
| 1993 | 4 | 0 |
| 1994 | 5 | 0 |
| 1995 | 3 | 0 |
| 1996 | 7 | 0 |
| 1997 | 5 | 0 |
| 1998 | 6 | 0 |
| 1999 | 7 | 0 |
| 2000 | 7 | 0 |
| 2001 | 5 | 1 |
| 2002 | 7 | 2 |
| 2003 | 5 | 15 |
| 2004 | 8 | 8 |
| 2005 | 7 | 12 |
| 2006 | 6 | 12 |
| 2007 | 8 | 12 |
| 2008 | 9 | 11 |
| 2009 | 12 | 7 |
| 2010 | 9 | 12 |
| 2011 | 12 | 9 |
| 2012 | 10 | 10 |
| 2013 | 7 | 20 |
| 2014 | 10 | 13 |
| 2015 | 11 | 23 |
| 2016 | 14 | 23 |
| 2017 | 13 | 13 |
| 2018 | 27 | 22 |
| 2019 | 12 | 23 |
| 2020 | 21 | 22 |
| 2021 | 18 | 22 |
| 2022 | 18 | 20 |
| 2023 | 16 | 15 |
| 2024 | 23 | 23 |
| 2025 | 15 | 18 |
| 2026 | 7 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Construction material assessment method and systems6 Oct 2026US 12,754,146 B2
- Non-destructive measurement, dispense, and replication of density gradients29 Sep 2026US 12,748,026 B2Beckman Coulter, Inc.
- Multi-phase fluid measurement using low activity sources23 Jun 2026US 12,663,348 B2Schlumberger Technology Corporation
- Detecting anomalies in annular materials of single and dual casing string environments21 Apr 2026US 12,607,766 B2Visuray Technology Ltd
- Method for density measurement of materials using computed tomography with diffraction artifact correction24 Mar 2026US 12,584,838 B2DigiM Solution LLC
- Surface density measurement apparatus and coating system24 Sep 2026US 2026/0287487 A1Contemporary Amperex Runzhi Software Technology Limited
- Radiometric detector24 Sep 2026US 2026/0287764 A1Endress + Hauser GmbH + Co. KG
- An apparatus and method for visual inspection27 Aug 2026US 2026/0255073 A1Deimos Laboratory Pty Ltd
- Radiometric fill level measurement23 Jul 2026US 2026/0210750 A1Endress + Hauser GmbH + Co. KG
- Ultrasonic flowmeter and method for operating an ultrasonic flowmeter16 Jul 2026US 2026/0202228 A1Krohne AG
Most cited
By later US patents
- Multiple-phase flowmeter and materials analysis apparatus and method146US 4,228,353 A1980
- Noninvasive electromagnetic fluid level sensor124US 6,192,752 B1Zevex, Inc. · 2001
- Automated target shape detection for vehicle muon tomography93US 7,945,105 B1Decision Sciences International Corporation · 2011
- Microfabricated reactor, process for manufacturing the reactor, and method of amplification80US 7,297,313 B1The Regents of the University of California · 2007
- Process and apparatus for measuring density and mass flow79US 6,202,494 B1Degussa-Huls AG · 2001