G01N 29/42
By frequency filtering or by tuning to resonant frequency
Official title: by frequency filtering {or by tuning to resonant frequency}
G01N29/42 (By frequency filtering or by tuning to resonant frequency) appears on 423 US grants and 390 published applications in this corpus.
Search patents in G01N- Granted patents
- 423
- Published applications
- 390
- Assignees
- 320
- Inventors
- 981
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 5 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 10 | 0 |
| 1998 | 8 | 0 |
| 1999 | 11 | 0 |
| 2000 | 20 | 0 |
| 2001 | 16 | 6 |
| 2002 | 25 | 16 |
| 2003 | 13 | 10 |
| 2004 | 16 | 10 |
| 2005 | 13 | 17 |
| 2006 | 9 | 10 |
| 2007 | 4 | 13 |
| 2008 | 15 | 5 |
| 2009 | 7 | 11 |
| 2010 | 8 | 5 |
| 2011 | 9 | 9 |
| 2012 | 2 | 6 |
| 2013 | 6 | 3 |
| 2014 | 6 | 10 |
| 2015 | 4 | 10 |
| 2016 | 4 | 9 |
| 2017 | 8 | 23 |
| 2018 | 9 | 29 |
| 2019 | 23 | 29 |
| 2020 | 30 | 34 |
| 2021 | 20 | 27 |
| 2022 | 21 | 29 |
| 2023 | 20 | 31 |
| 2024 | 28 | 13 |
| 2025 | 19 | 18 |
| 2026 | 6 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- High resolution imaging of pressurized water supply lines using high frequency acoustic waves8 Sep 2026US 12,730,030 B2The Hong Kong University of Science and Technology
- Systems and methods for monitoring batteries in user devices23 Jun 2026US 12,663,482 B2Titan Advanced Energy Solutions, Inc.
- Calibration method for acoustic sensor26 May 2026US 12,638,422 B2Ebara Corporation
- Method and device for detecting and locating a fault point of a housing28 Apr 2026US 12,613,224 B2MUSE Electronics GmbH
- Particle-sensing device17 Mar 2026US 12,578,312 B2University of Warwick
- High-speed trailer-integrated ultrasonic inspection system with modular wheel probe assembly24 Sep 2026US 2026/0287559 A1Transtek International LLC
- Method of non-linear non-destructive testing of a testpiece27 Aug 2026US 2026/0251619 A1
- Apparatus for determining leakage using pipeline characteristics and noise pattern, and learning method thereof23 Jul 2026US 2026/0210792 A1Sc Solution Global Co., Ltd
- Leakage detection device18 Jun 2026US 2026/0168882 A1SMC Corporation
- Information processing method and information processing apparatus14 May 2026US 2026/0134060 A1Daikin Industries, Ltd.
Most cited
By later US patents
- Configurable vibration sensor870US 7,093,492 B2Mechworks Systems Inc. · 2006
- Mass spectrometers and methods for rapid screening of libraries of different materials218US 5,959,297 ASymyx Technologies, Inc. · 1999
- Ultrasonic non-destructive evaluation of thin specimens213US 5,305,239 AThe Texas A&M University System · 1994
- Fluid parameter measurement in pipes using acoustic pressures191US 6,354,147 B1CiDRA Corporation · 2002
- Flow analysis system and method142US 5,741,980 AFoster-Miller, Inc. · 1998