G01N 29/07
By measuring propagation velocity or propagation time of acoustic waves
Official title: by measuring propagation velocity or propagation time of acoustic waves
G01N29/07 (By measuring propagation velocity or propagation time of acoustic waves) appears on 1,499 US grants and 1,383 published applications in this corpus.
Search patents in G01N- Granted patents
- 1,499
- Published applications
- 1,383
- Assignees
- 893
- Inventors
- 3,498
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 7 | 0 |
| 1978 | 11 | 0 |
| 1979 | 5 | 0 |
| 1980 | 4 | 0 |
| 1981 | 11 | 0 |
| 1982 | 7 | 0 |
| 1983 | 7 | 0 |
| 1984 | 11 | 0 |
| 1985 | 11 | 0 |
| 1986 | 16 | 0 |
| 1987 | 15 | 0 |
| 1988 | 8 | 0 |
| 1989 | 7 | 0 |
| 1990 | 22 | 0 |
| 1991 | 18 | 0 |
| 1992 | 20 | 0 |
| 1993 | 21 | 0 |
| 1994 | 21 | 0 |
| 1995 | 14 | 0 |
| 1996 | 24 | 0 |
| 1997 | 19 | 0 |
| 1998 | 24 | 0 |
| 1999 | 23 | 0 |
| 2000 | 12 | 0 |
| 2001 | 19 | 3 |
| 2002 | 17 | 14 |
| 2003 | 19 | 26 |
| 2004 | 21 | 36 |
| 2005 | 23 | 26 |
| 2006 | 26 | 45 |
| 2007 | 26 | 38 |
| 2008 | 24 | 35 |
| 2009 | 20 | 43 |
| 2010 | 36 | 30 |
| 2011 | 21 | 44 |
| 2012 | 32 | 35 |
| 2013 | 33 | 39 |
| 2014 | 28 | 40 |
| 2015 | 30 | 60 |
| 2016 | 37 | 49 |
| 2017 | 50 | 77 |
| 2018 | 50 | 94 |
| 2019 | 75 | 66 |
| 2020 | 71 | 115 |
| 2021 | 87 | 99 |
| 2022 | 85 | 102 |
| 2023 | 86 | 92 |
| 2024 | 107 | 90 |
| 2025 | 80 | 58 |
| 2026 | 46 | 27 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Defect sizing combining fixed wavelength and variable wavelength guided waves29 Sep 2026US 12,748,079 B2Innerspec Technologies, Inc.
- Pipeline monitoring apparatus and method of use thereof29 Sep 2026US 12,748,080 B2
- Heat exchanger state sensing apparatus and method of use thereof29 Sep 2026US 12,748,081 B2
- Method and system for ultrasound time-of-flight measurement8 Sep 2026US 12,730,218 B2Texas Instruments Incorporated
- Efficient beam profile imaging for non-negligible wave properties and rotationally anisotropic geometries25 Aug 2026US 12,716,870 B2Halliburton Energy Services.Inc.
- Fastener Tightening Control System in an Assembly and Method for Controlling the Tightening of a Fastener in an Assembly8 Oct 2026US 2026/0307184 A1Lisi Aerospace
- Battery testing apparatus and operating method thereof1 Oct 2026US 2026/0298875 A1LG Energy Solution, Ltd.
- Inspection apparatus, inspection method, and method for manufacturing semiconductor device17 Sep 2026US 2026/0276597 A1Kioxia Corporation
- Rail track apparatus and method10 Sep 2026US 2026/0266768 A1Peak to Peak Measurement Solutions Limited
- Method and system for measuring lubrication film thickness of sliding nearing based on ultrasonic proportional coefficient3 Sep 2026US 2026/0259047 A1Xi' An Jiaotong University
Most cited
By later US patents
- EMAT probe and technique for weld inspection214US 5,760,307 A1998
- Ultrasonic non-destructive evaluation of thin specimens213US 5,305,239 AThe Texas A&M University System · 1994
- System for transmitting ultrasonic energy through core samples208US 4,380,930 AMobil Oil Corporation · 1983
- Three-dimensional temperature probe146US 4,513,749 AThe Board of Trustees of the Leland Stanford University · 1985
- Apparatus and method for recognizing carpets and stairs by cleaning robot146US 5,307,273 AGoldstar Co., Ltd. · 1994