G01N 29/032
By measuring attenuation of acoustic waves
Official title: by measuring attenuation of acoustic waves
G01N29/032 (By measuring attenuation of acoustic waves) appears on 570 US grants and 464 published applications in this corpus.
Search patents in G01N- Granted patents
- 570
- Published applications
- 464
- Assignees
- 424
- Inventors
- 1,372
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 3 | 0 |
| 1978 | 5 | 0 |
| 1979 | 4 | 0 |
| 1980 | 5 | 0 |
| 1981 | 3 | 0 |
| 1982 | 8 | 0 |
| 1983 | 8 | 0 |
| 1984 | 3 | 0 |
| 1985 | 5 | 0 |
| 1986 | 10 | 0 |
| 1987 | 8 | 0 |
| 1988 | 9 | 0 |
| 1989 | 5 | 0 |
| 1990 | 4 | 0 |
| 1991 | 10 | 0 |
| 1992 | 7 | 0 |
| 1993 | 8 | 0 |
| 1994 | 5 | 0 |
| 1995 | 6 | 0 |
| 1996 | 6 | 0 |
| 1997 | 7 | 0 |
| 1998 | 12 | 0 |
| 1999 | 8 | 0 |
| 2000 | 18 | 0 |
| 2001 | 14 | 1 |
| 2002 | 10 | 5 |
| 2003 | 8 | 10 |
| 2004 | 8 | 15 |
| 2005 | 10 | 11 |
| 2006 | 10 | 15 |
| 2007 | 10 | 12 |
| 2008 | 5 | 16 |
| 2009 | 8 | 18 |
| 2010 | 15 | 17 |
| 2011 | 11 | 15 |
| 2012 | 16 | 16 |
| 2013 | 8 | 9 |
| 2014 | 18 | 18 |
| 2015 | 13 | 15 |
| 2016 | 10 | 16 |
| 2017 | 15 | 25 |
| 2018 | 10 | 23 |
| 2019 | 24 | 28 |
| 2020 | 30 | 32 |
| 2021 | 20 | 34 |
| 2022 | 31 | 38 |
| 2023 | 27 | 21 |
| 2024 | 29 | 20 |
| 2025 | 21 | 28 |
| 2026 | 17 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Non-contact ultrasound viscoelastic spectroscopy25 Aug 2026US 12,716,873 B2University of Southern California
- Methods and systems of determining a viscosity of liquid samples18 Aug 2026US 12,710,345 B2Amgen Inc.
- In-situ measurement technique for nondestructive determination of end-of-mixing time during slurry preparation for battery manufacturing process11 Aug 2026US 12,706,294 B2Ford Global Technologies, LLC
- Methods and systems for acoustic determination of gas composition21 Jul 2026US 12,687,525 B2Saudi Arabian Oil Company
- Imaging and sensing of thin layer using high-frequency ultrasonic transducers2 Jun 2026US 12,644,863 B2Geegah LLC
- System and method for acoustic spectroscopy for fluid measurement1 Oct 2026US 2026/0298880 A1Petroleo Brasileiro S.A. - Petrobras
- Determining the concentration of residuals in the effluent of a solid-liquid separation process by ultrasound27 Aug 2026US 2026/0251616 A1
- Determining acoustic characteristics of sample containers and fluid samples therein using reflected acoustic signals27 Aug 2026US 2026/0251622 A1Labcyte Inc.
- Apparatus, Systems And Methods For In Vitro Screening Of Complex Biological Fluids20 Aug 2026US 2026/0243651 A1The Administrators of the Tulane Educational Fund
- Apparatus and method for measuring workability of concrete23 Jul 2026US 2026/0210937 A1
Most cited
By later US patents
- Method and apparatus for measuring fluid characteristics using surface generated volumetric interrogation signals244US 4,735,097 APanametrics, Inc. · 1988
- Variable frequency gas-bubble-manipulating apparatus and method202US 4,689,986 AUniversity of Michigan · 1987
- Method and apparatus for ultrasonic detection of air bubbles200US 5,394,732 ACobe Laboratories, Inc. · 1995
- Ultrasonic sensor for the detection of gas bubbles184US 4,722,224 AShiley Incorporated · 1988
- Ultrasonic system for measuring fluid impedance or liquid level183US 4,320,659 APanametrics, Inc. · 1982