G01N 27/82
For investigating the presence of flaws
Official title: for investigating the presence of flaws
G01N27/82 (For investigating the presence of flaws) appears on 2,198 US grants and 1,752 published applications in this corpus.
Search patents in G01N- Granted patents
- 2,198
- Published applications
- 1,752
- Assignees
- 1,027
- Inventors
- 4,217
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 30 | 0 |
| 1977 | 21 | 0 |
| 1978 | 30 | 0 |
| 1979 | 12 | 0 |
| 1980 | 18 | 0 |
| 1981 | 21 | 0 |
| 1982 | 17 | 0 |
| 1983 | 12 | 0 |
| 1984 | 33 | 0 |
| 1985 | 29 | 0 |
| 1986 | 32 | 0 |
| 1987 | 38 | 0 |
| 1988 | 30 | 0 |
| 1989 | 46 | 0 |
| 1990 | 26 | 0 |
| 1991 | 36 | 0 |
| 1992 | 33 | 0 |
| 1993 | 26 | 0 |
| 1994 | 37 | 0 |
| 1995 | 47 | 0 |
| 1996 | 42 | 0 |
| 1997 | 27 | 0 |
| 1998 | 34 | 0 |
| 1999 | 30 | 0 |
| 2000 | 24 | 0 |
| 2001 | 33 | 5 |
| 2002 | 41 | 34 |
| 2003 | 33 | 53 |
| 2004 | 49 | 48 |
| 2005 | 39 | 44 |
| 2006 | 38 | 47 |
| 2007 | 41 | 52 |
| 2008 | 29 | 45 |
| 2009 | 31 | 43 |
| 2010 | 34 | 64 |
| 2011 | 36 | 54 |
| 2012 | 52 | 66 |
| 2013 | 55 | 53 |
| 2014 | 43 | 75 |
| 2015 | 59 | 78 |
| 2016 | 66 | 84 |
| 2017 | 66 | 78 |
| 2018 | 73 | 110 |
| 2019 | 82 | 107 |
| 2020 | 110 | 117 |
| 2021 | 97 | 92 |
| 2022 | 103 | 96 |
| 2023 | 65 | 93 |
| 2024 | 74 | 77 |
| 2025 | 65 | 75 |
| 2026 | 53 | 62 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method and tool for inspecting the condition of the internal surface of pipes6 Oct 2026US 12,753,874 B2Petroleo Brasileiro S.A. - Petrobras
- Magnetic ultrasound testing system6 Oct 2026US 12,754,167 B2Simply AUT Ltd.
- C-scan data merging6 Oct 2026US 12,754,168 B2Evident Canada, Inc.
- Electromagnetic inductive coupling analysis (EMICA) for on-board or in-lab detection of defects in thick or thin carbon fiber laminates29 Sep 2026US 12,748,074 B2TDA Research, Inc.
- Management system and management method29 Sep 2026US 12,748,235 B2Sintokogio, Ltd.
- Array probe jig8 Oct 2026US 2026/0309673 A1Mitsubishi Heavy Industries, Ltd.
- Method for rapid localization of dam leakage passage based on gradient measurement of total magnetic field1 Oct 2026US 2026/0298765 A1Central South University
- 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
- Fastener assembly sensor unit17 Sep 2026US 2026/0276022 A1Salunda Limited
Most cited
By later US patents
- Three magnet casing collar locator243US 4,808,925 AHalliburton Company · 1989
- Apparatus and method for performing non-destructive inspections of large area aircraft structures201US 6,220,099 B1CE Nuclear Power LLC · 2001
- Giant magnetorestive sensors and sensor arrays for detection and imaging of anomalies in conductive materials200US 6,150,809 ATPL, Inc. · 2000
- Self-powered pipeline vehicle for carrying out an operation on a pipeline and method186US 6,031,371 ABG plc · 2000
- Pipeline condition detecting apparatus and method181US 9,976,986 B2Advanced Engineering Solutions Ltd. · 2018