G01N 27/20
Investigating the presence of flaws
G01N27/20 (Investigating the presence of flaws) appears on 541 US grants and 505 published applications in this corpus.
Search patents in G01N- Granted patents
- 541
- Published applications
- 505
- Assignees
- 384
- Inventors
- 1,368
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 5 | 0 |
| 1979 | 3 | 0 |
| 1980 | 6 | 0 |
| 1981 | 3 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 5 | 0 |
| 1986 | 5 | 0 |
| 1987 | 8 | 0 |
| 1988 | 4 | 0 |
| 1989 | 4 | 0 |
| 1990 | 5 | 0 |
| 1991 | 4 | 0 |
| 1992 | 5 | 0 |
| 1993 | 6 | 0 |
| 1994 | 6 | 0 |
| 1995 | 6 | 0 |
| 1996 | 6 | 0 |
| 1997 | 5 | 0 |
| 1998 | 4 | 0 |
| 1999 | 6 | 0 |
| 2000 | 4 | 0 |
| 2001 | 6 | 1 |
| 2002 | 4 | 8 |
| 2003 | 9 | 8 |
| 2004 | 10 | 13 |
| 2005 | 6 | 12 |
| 2006 | 13 | 7 |
| 2007 | 7 | 10 |
| 2008 | 7 | 10 |
| 2009 | 3 | 9 |
| 2010 | 5 | 9 |
| 2011 | 9 | 6 |
| 2012 | 4 | 14 |
| 2013 | 9 | 13 |
| 2014 | 11 | 22 |
| 2015 | 12 | 23 |
| 2016 | 21 | 26 |
| 2017 | 23 | 34 |
| 2018 | 26 | 41 |
| 2019 | 37 | 50 |
| 2020 | 38 | 34 |
| 2021 | 47 | 41 |
| 2022 | 26 | 26 |
| 2023 | 30 | 24 |
| 2024 | 23 | 26 |
| 2025 | 24 | 21 |
| 2026 | 17 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Apparatus to enamel rate selected regions of metal objects15 Sep 2026US 12,736,494 B2Innosen Limited
- Methods of identifying types of iron scale18 Aug 2026US 12,710,386 B2King Fahd University of Petroleum and Minerals
- Welding device for button-type secondary battery4 Aug 2026US 12,697,683 B2LG Energy Solution, Ltd.
- Welding inspection apparatus for battery modules30 Jun 2026US 12,669,458 B2LG Energy Solution, Ltd.
- Electronic device including a sensor and a method of using the same30 Jun 2026US 12,669,459 B2Semiconductor Components Industries, LLC
- Sealing arrangement with a seal having varying electrical properties1 Oct 2026US 2026/0304663 A1Greene, Tweed Technologies, Inc.
- Measuring method and measuring system24 Sep 2026US 2026/0287536 A1Hioki E. E. Corporation
- Damage detection device and damage detection method27 Aug 2026US 2026/0251605 A1LG Electronics Inc.
- Determining an Aging State of a Contacting Layer of a Semiconductor Component and Semiconductor Assembly20 Aug 2026US 2026/0243730 A1Siemens Aktiengesellschaft
- Display panel and electronic device including the same13 Aug 2026US 2026/0237333 A1Samsung Display Co., Ltd.
Most cited
By later US patents
- 3D printed conductive compositions anticipating or indicating structural compromise118US 10,234,342 B2Xerox Corporation · 2019
- Nonlinearity detection using fault-generated second harmonic88US 4,496,900 AInternational Business Machines Corporation · 1985
- Base plate for an ostomy appliance82US 10,849,781 B2Coloplast A/S · 2020
- Electrical impedance tomography80US 6,940,286 B2University of Leeds · 2005
- Methods for detecting and locating leaks in containment facilities using electrical potential data and electrical resistance tomographic imaging techniques74US 6,331,778 B1Leak Location Services, Inc. · 2001