G01N 29/2412
Using the magnetostrictive properties of the material to be examined
Official title: {using the magnetostrictive properties of the material to be examined, e.g. electromagnetic acoustic transducers [EMAT]; (investigating the presence of flaws using eddy currents G01N27/90, magnetostrictive transducers B06B1/08, measuring magnetostrictive properties G01R33/18)}
G01N29/2412 (Using the magnetostrictive properties of the material to be examined) appears on 453 US grants and 344 published applications in this corpus.
Search patents in G01N- Granted patents
- 453
- Published applications
- 344
- Assignees
- 255
- Inventors
- 893
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 8 | 0 |
| 1979 | 4 | 0 |
| 1980 | 3 | 0 |
| 1981 | 8 | 0 |
| 1982 | 6 | 0 |
| 1983 | 5 | 0 |
| 1984 | 9 | 0 |
| 1985 | 2 | 0 |
| 1986 | 5 | 0 |
| 1987 | 4 | 0 |
| 1988 | 5 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 5 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 7 | 0 |
| 1996 | 6 | 0 |
| 1997 | 10 | 0 |
| 1998 | 12 | 0 |
| 1999 | 11 | 0 |
| 2000 | 12 | 0 |
| 2001 | 15 | 6 |
| 2002 | 12 | 6 |
| 2003 | 10 | 8 |
| 2004 | 6 | 11 |
| 2005 | 12 | 3 |
| 2006 | 6 | 15 |
| 2007 | 4 | 10 |
| 2008 | 13 | 13 |
| 2009 | 6 | 16 |
| 2010 | 12 | 9 |
| 2011 | 13 | 14 |
| 2012 | 10 | 11 |
| 2013 | 11 | 13 |
| 2014 | 12 | 12 |
| 2015 | 13 | 14 |
| 2016 | 6 | 15 |
| 2017 | 13 | 16 |
| 2018 | 13 | 26 |
| 2019 | 22 | 21 |
| 2020 | 23 | 16 |
| 2021 | 15 | 21 |
| 2022 | 13 | 17 |
| 2023 | 14 | 19 |
| 2024 | 19 | 18 |
| 2025 | 18 | 7 |
| 2026 | 10 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Defect sizing combining fixed wavelength and variable wavelength guided waves29 Sep 2026US 12,748,079 B2Innerspec Technologies, Inc.
- Nondestructive testing system and method using reflected shear horizontal guided waves16 Jun 2026US 12,656,317 B2Ecole De Technologie Superieure
- Defect detection method and system using high frequency waves9 Jun 2026US 12,650,411 B2The Hong Kong University of Science and Technology
- System and a method for detecting and characterizing a defect in an object using guided wave inspection2 Jun 2026US 12,644,866 B2Indian Institute of Technology Madras (Iit Madras)
- In-oil autonomous operation detection robot of storage tank bottom plate and autonomous operation detection method21 Apr 2026US 12,608,019 B1China Special Equipment Inspection & Research Institute
- Transformer stacked iron core elasticity matrix determination method and vibration analysis method, and non-transitory computer readable medium8 Oct 2026US 2026/0309681 A1Jfe Steel Corporation
- Transformer stacked iron core elasticity matrix determination method and vibration analysis method, and non-transitory computer readable medium1 Oct 2026US 2026/0298879 A1Jfe Steel Corporation
- Electromagnetic acoustic transducer (emat) for inspection17 Sep 2026US 2026/0276599 A1Evident Canada, Inc.
- Electromagnetic transducer with dual flux20 Aug 2026US 2026/0243733 A1Cochlear Limited
- Magnetostrictive ultrasonic transducers, magnet assemblies, and related measurement systems13 Aug 2026US 2026/0235557 A1Battelle Energy Alliance, LLC
Most cited
By later US patents
- Method and apparatus for determining location of characteristics of a pipeline311US 6,243,657 B1PII North America, Inc. · 2001
- Method and apparatus for material analysis267US 5,348,002 ASirraya, Inc. · 1994
- Non-contact method and apparatus for inspection of inertia welds225US 5,652,389 AThe United States of America as represented by the Secretary of Commerce · 1997
- Edge detection and seam tracking with EMATs218US 6,155,117 AMcDermott Technology, Inc. · 2000
- Sensor transport system for combination flash butt welder217US 5,777,229 AThe Babcock & Wilcox Company · 1998