G01N 29/09
By measuring mechanical or acoustic impedance
Official title: by measuring mechanical or acoustic impedance
G01N29/09 (By measuring mechanical or acoustic impedance) appears on 89 US grants and 89 published applications in this corpus.
Search patents in G01N- Granted patents
- 89
- Published applications
- 89
- Assignees
- 83
- Inventors
- 274
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 2 |
| 2003 | 1 | 2 |
| 2004 | 3 | 2 |
| 2005 | 1 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 3 |
| 2009 | 2 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 2 |
| 2013 | 2 | 4 |
| 2014 | 1 | 1 |
| 2015 | 3 | 11 |
| 2016 | 2 | 8 |
| 2017 | 6 | 4 |
| 2018 | 6 | 5 |
| 2019 | 12 | 3 |
| 2020 | 5 | 8 |
| 2021 | 2 | 5 |
| 2022 | 3 | 6 |
| 2023 | 6 | 5 |
| 2024 | 5 | 7 |
| 2025 | 3 | 3 |
| 2026 | 3 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Determining impedance of physical system7 Jul 2026US 12,674,827 B2Baars Beheer B.V.
- Determining acoustic characteristics of sample containers and fluid samples therein using reflected acoustic signals19 May 2026US 12,631,598 B2Labcyte Inc.
- Downhole status detection using vibration6 Jan 2026US 12,517,092 B2Halliburton Energy Services.Inc.
- Device for evaluating integrity of underground structure by using electromagnetic wave30 Dec 2025US 12,509,844 B2Backyoung G&C Co., Ltd.
- Systems and methods for tagging and acoustically characterizing containers29 Apr 2025US 12,285,762 B2Labcyte Inc.
- Determining acoustic characteristics of sample containers and fluid samples therein using reflected acoustic signals27 Aug 2026US 2026/0251622 A1Labcyte Inc.
- Method and system for measuring a variation in a dimension of a mechanical part30 Apr 2026US 2026/0118320 A1
- Downhole status detection using vibration23 Apr 2026US 2026/0110663 A1Halliburton Energy Services.Inc.
- Air-coupled ultrasonic metrology platform for in-line characterization of battery porous electrodes29 Jan 2026US 2026/0029383 A1Drexel University
- Structural health monitoring sensor and system15 Jan 2026US 2026/0016449 A1The University of Adelaide
Most cited
By later US patents
- Methods and sensors for the detection of active carbon filters degradation with EMIS-ECIS PWAS249US 8,814,996 B2University of South Carolina · 2014
- Acoustic impedance measuring apparatus using ultrasonic waves98US 6,298,726 B1Olympus Optical Co., Ltd. · 2001
- Ultrasonic authenticating button80US 9,945,818 B2QUALCOMM Incorporated · 2018
- Method and apparatus for ultrasonic pipeline inspection61US 5,460,046 ATDW Delaware, Inc. · 1995
- Apparatus and method for bondtesting by ultrasonic complex impedance plane analysis37US 4,215,583 ANDT Instruments, Inc. · 1980