G01N 29/4409
By comparison
Official title: {by comparison}
G01N29/4409 (By comparison) appears on 1,278 US grants and 1,493 published applications in this corpus.
Search patents in G01N- Granted patents
- 1,278
- Published applications
- 1,493
- Assignees
- 883
- Inventors
- 3,488
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 5 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 4 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 5 | 0 |
| 1996 | 3 | 0 |
| 1997 | 6 | 0 |
| 1998 | 8 | 0 |
| 1999 | 8 | 0 |
| 2000 | 13 | 0 |
| 2001 | 15 | 5 |
| 2002 | 25 | 17 |
| 2003 | 18 | 28 |
| 2004 | 21 | 24 |
| 2005 | 19 | 24 |
| 2006 | 19 | 30 |
| 2007 | 21 | 38 |
| 2008 | 15 | 38 |
| 2009 | 24 | 41 |
| 2010 | 24 | 32 |
| 2011 | 28 | 38 |
| 2012 | 30 | 34 |
| 2013 | 30 | 30 |
| 2014 | 30 | 46 |
| 2015 | 31 | 51 |
| 2016 | 31 | 68 |
| 2017 | 45 | 86 |
| 2018 | 59 | 104 |
| 2019 | 97 | 126 |
| 2020 | 114 | 103 |
| 2021 | 82 | 106 |
| 2022 | 97 | 110 |
| 2023 | 90 | 112 |
| 2024 | 101 | 79 |
| 2025 | 80 | 85 |
| 2026 | 48 | 38 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Ultrasonic non-destructive testing method and system for lithium precipitation in lithium-ion battery22 Sep 2026US 12,742,751 B2Beihang University
- Apparatus for determining damage on structural components and work machine comprising such an apparatus15 Sep 2026US 12,736,440 B2Liebherr-Components Biberach GmbH
- Determination of peaking of pipes8 Sep 2026US 12,730,094 B2NDT Global Corporate LTD.
- Efficient beam profile imaging for non-negligible wave properties and rotationally anisotropic geometries25 Aug 2026US 12,716,870 B2Halliburton Energy Services.Inc.
- Acoustic influence map based flaw size imaging25 Aug 2026US 12,716,871 B2Evident Canada, Inc.
- Detection of damage to components within an electrolyzer stack during operation8 Oct 2026US 2026/0308789 A1Fourier Earth, Inc.
- Robot for performing non-destructive evaluation of a weld1 Oct 2026US 2026/0298877 A1BAE SYSTEMS plc
- Method of applying signal amplification for driving an ultrasound transducer, corresponding circuit and system1 Oct 2026US 2026/0298884 A1STMicroelectronics International N. V.
- Ai-enhanced acoustic analysis system for coin authenticity verification and counterfeit detection using convolutional neural networks and spectrogram processing1 Oct 2026US 2026/0301499 A1
- System for and method of inspecting semiconductor devices, and method of manufacturing the devices including the method10 Sep 2026US 2026/0266773 A1Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
Most cited
By later US patents
- Combinatorial synthesis and analysis of organometallic compounds and catalysts245US 6,030,917 ASymyx Technologies, Inc. · 2000
- Mass spectrometers and methods for rapid screening of libraries of different materials218US 5,959,297 ASymyx Technologies, Inc. · 1999
- Method and apparatus for ultrasonic detection of air bubbles200US 5,394,732 ACobe Laboratories, Inc. · 1995
- Ultrasonic flow metering system156US 6,487,916 B1Bechtel BXWT Idaho, LLC · 2002
- Laser ultrasonics-based material analysis system and method using matched filter processing140US 5,604,592 ATextron Defense Systems, Division of Avco Corporation · 1997