G01N 27/725
By using magneto-acoustical effects or the barkhausen effect
Official title: {by using magneto-acoustical effects or the Barkhausen effect}
G01N27/725 (By using magneto-acoustical effects or the barkhausen effect) appears on 52 US grants and 40 published applications in this corpus.
Search patents in G01N- Granted patents
- 52
- Published applications
- 40
- Assignees
- 50
- Inventors
- 138
- Latest grant
- 6 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 4 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 2 |
| 2006 | 1 | 0 |
| 2007 | 1 | 1 |
| 2008 | 2 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 1 | 1 |
| 2012 | 0 | 1 |
| 2013 | 1 | 2 |
| 2014 | 0 | 4 |
| 2015 | 1 | 2 |
| 2016 | 4 | 1 |
| 2017 | 2 | 3 |
| 2018 | 0 | 1 |
| 2019 | 3 | 1 |
| 2020 | 1 | 3 |
| 2021 | 3 | 3 |
| 2022 | 2 | 2 |
| 2023 | 1 | 4 |
| 2024 | 1 | 2 |
| 2025 | 3 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Portable, fixed external field magnetometer for the detection of magnetic signals from samples and the assessment of the amount of magnetic material in the sample6 Jan 2026US 12,517,196 B2Universidad Autonoma De Chile
- Vibrating sample magnetometer and measurement method of magnetic property25 Nov 2025US 12,480,911 B2Mitsubishi Electric Corporation
- Method for determining a materials characteristic value of magnetizable metal bodies by means of a micromagnetic sensor assembly, and corresponding sensor assembly17 Jun 2025US 12,332,211 B2ROSEN 2 Holding AG
- Inspection system for inner bore inspections11 Feb 2025US 12,221,205 B2Goodrich Corporation
- Systems, methods, and apparatus for detection of metal objects in a predetermined space5 Mar 2024US 11,919,407 B2WiTricity Corporation
- A method for material loss detection, in particular for wear detection, an arrangement for performing this method6 Aug 2026US 2026/0226953 A1Rvmagnetics, A.S.
- Measurement device and measurement method9 Oct 2025US 2025/0314617 A1Japan Science and Technology Agency
- Multi sensing approach for industrial inspection5 Dec 2024US 2024/0402127 A1
- Vibrating sample magnetometer and measurement method of magnetic property21 Mar 2024US 2024/0094163 A1Mitsubishi Electric Corporation
- Inspection system for inner bore inspections16 Nov 2023US 2023/0365253 A1Goodrich Corporation
Most cited
By later US patents
- Systems, methods, and apparatus for detection of metal objects in a predetermined space48US 9,410,823 B2QUALCOMM Incorporated · 2016
- Systems, methods, and apparatus for detection of metal objects in a predetermined space32US 9,726,518 B2QUALCOMM Incorporated · 2017
- Method and device for determining the neutral temperature of welded tracks21US 5,992,241 AMagyar Allamvasutak Reszvenytarsasag · 1999
- Tool steel production method18US 5,458,703 ANippon Koshuha Steel Co., Ltd. · 1995
- Method of testing steam turbine rotors to determine if they should be retired because of embrittlement17US 4,692,701 AFactory Mutual Research Corporation · 1987