G01N 27/9046
By analysing electrical signals
Official title: {by analysing electrical signals}
G01N27/9046 (By analysing electrical signals) appears on 488 US grants and 360 published applications in this corpus.
Search patents in G01N- Granted patents
- 488
- Published applications
- 360
- Assignees
- 272
- Inventors
- 1,041
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 3 | 0 |
| 1978 | 7 | 0 |
| 1979 | 2 | 0 |
| 1980 | 8 | 0 |
| 1981 | 10 | 0 |
| 1982 | 8 | 0 |
| 1983 | 5 | 0 |
| 1984 | 8 | 0 |
| 1985 | 8 | 0 |
| 1986 | 14 | 0 |
| 1987 | 12 | 0 |
| 1988 | 7 | 0 |
| 1989 | 17 | 0 |
| 1990 | 10 | 0 |
| 1991 | 8 | 0 |
| 1992 | 8 | 0 |
| 1993 | 7 | 0 |
| 1994 | 10 | 0 |
| 1995 | 9 | 0 |
| 1996 | 6 | 0 |
| 1997 | 7 | 0 |
| 1998 | 2 | 0 |
| 1999 | 5 | 0 |
| 2000 | 4 | 0 |
| 2001 | 4 | 3 |
| 2002 | 9 | 5 |
| 2003 | 10 | 25 |
| 2004 | 15 | 7 |
| 2005 | 13 | 8 |
| 2006 | 4 | 10 |
| 2007 | 12 | 8 |
| 2008 | 6 | 14 |
| 2009 | 4 | 9 |
| 2010 | 8 | 14 |
| 2011 | 10 | 10 |
| 2012 | 10 | 12 |
| 2013 | 10 | 13 |
| 2014 | 7 | 12 |
| 2015 | 14 | 12 |
| 2016 | 11 | 14 |
| 2017 | 9 | 15 |
| 2018 | 9 | 24 |
| 2019 | 18 | 21 |
| 2020 | 23 | 20 |
| 2021 | 22 | 15 |
| 2022 | 17 | 23 |
| 2023 | 11 | 21 |
| 2024 | 16 | 20 |
| 2025 | 16 | 16 |
| 2026 | 10 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- C-scan data merging6 Oct 2026US 12,754,168 B2Evident Canada, Inc.
- Tool and system for eddy current inspection28 Jul 2026US 12,693,265 B2Airbus Operations S.L.U.
- Method for detecting defects in a tube heat exchanger30 Jun 2026US 12,669,472 B2Electricite de France
- System and method for automated acquisition and analysis of electromagnetic testing data5 May 2026US 12,618,803 B2National Bank of Canada
- Processing of azimuthal electromagnetic pipe inspection data21 Apr 2026US 12,607,601 B2Halliburton Energy Services.Inc.
- Composite detection apparatus and method of pulsed eddy current and magnetic flux leakage in oil and gas pipeline24 Sep 2026US 2026/0287125 A1China Special Equipment Inspection & Research Institute
- Multimodal processing of pulsed eddy current response signal for well integrity evaluation24 Sep 2026US 2026/0287553 A1Schlumberger Technology Corporation
- Matrix capture approach for eddy current (ec) inspection17 Sep 2026US 2026/0276592 A1Evident Canada, Inc.
- Eddy current (ec) defect view and defect classification17 Sep 2026US 2026/0276593 A1Evident Canada, Inc.
- System, method and apparatus for lading measurement in a rail car25 Jun 2026US 2026/0177412 A1BNSF Railway Company
Most cited
By later US patents
- Multi-Parameter eddy current measuring system with parameter compensation technical field137US 5,541,510 AKaman Instrumentation Corporation · 1996
- Digitally controlled multifrequency eddy current test apparatus and method92US 4,303,885 AElectric Power Research Institute, Inc. · 1981
- Method and apparatus for a multi-channel multi-frequency data acquisition system for nondestructive eddy current inspection testing88US 5,182,513 AGeneral Electric Company · 1993
- Method for inspecting components having complex geometric shapes88US 5,345,514 AGeneral Electric Company · 1994
- Multiple frequency digital eddy current inspection system86US 4,207,520 AThe United States of America as represented by the Secretary of the Air Force · 1980