G01N 29/046
Using the echo of particles imparting on a surface
Official title: {using the echo of particles imparting on a surface; using acoustic emission of particles (investigating concentration of particle suspensions G01N15/06; devices for measuring flow of solids in suspension G01F1/74)}
G01N29/046 (Using the echo of particles imparting on a surface) appears on 58 US grants and 43 published applications in this corpus.
Search patents in G01N- Granted patents
- 58
- Published applications
- 43
- Assignees
- 54
- Inventors
- 164
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 4 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 3 |
| 2005 | 2 | 3 |
| 2006 | 2 | 1 |
| 2007 | 0 | 1 |
| 2008 | 1 | 1 |
| 2009 | 2 | 0 |
| 2010 | 1 | 0 |
| 2011 | 1 | 1 |
| 2012 | 0 | 1 |
| 2013 | 1 | 3 |
| 2014 | 1 | 1 |
| 2015 | 1 | 1 |
| 2016 | 2 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 4 |
| 2019 | 1 | 2 |
| 2020 | 2 | 7 |
| 2021 | 3 | 1 |
| 2022 | 3 | 2 |
| 2023 | 3 | 5 |
| 2024 | 2 | 2 |
| 2025 | 3 | 1 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Sonic inspection device, sonic inspection method, and contact member for sonic inspection device14 Apr 2026US 12,601,716 B2Kabushiki Kaisha Toshiba
- Acoustic detection of defects in a pipeline10 Mar 2026US 12,571,770 B2Rosen IP AG
- Cement bonding evaluation with a sonic-logging-while-drilling tool4 Nov 2025US 12,460,532 B2Halliburton Energy Services.Inc.
- Oilfield production particulate monitoring assembly3 Jun 2025US 12,320,777 B2OneSubsea IP UK Limited
- Passive measurement of acousto-elastic waves4 Mar 2025US 12,241,869 B2Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Cement bonding evaluation with a sonic-logging-while-drilling tool5 Feb 2026US 2026/0036040 A1Halliburton Energy Services.Inc.
- Biosensor and preparation method31 Jul 2025US 2025/0244295 A1University of South Carolina
- Sonic inspection device, sonic inspection method, and contact member for sonic inspection device5 Sep 2024US 2024/0295532 A1Kabushiki Kaisha Toshiba
- Deep rock in situ environment reconstruction and integrated three-dimensional mechanical-thermo-acousto-seismic-flow testing method5 Sep 2024US 2024/0295540 A1Shenzhen University
- Portable railroad spike inspection system based on acoustic signals5 Oct 2023US 2023/0314383 A1University of South Carolina
Most cited
By later US patents
- Sand monitoring within wells using acoustic arrays91US 6,837,098 B2Weatherford/Lamb, Inc. · 2005
- Acoustic sand detector for fluid flowstreams76US 5,257,530 AAtlantic Richfield Company · 1993
- Particle detector54US 4,674,337 A1987
- System for monitoring mechanical waves from a moving machine49US 6,874,364 B1Commonwealth Scientific and Industrial Research Organisation · 2005
- Sand detection26US 4,240,287 AShell Oil Company · 1980