G01N 2021/8812
Diffuse illumination
Official title: {Diffuse illumination, e.g. "sky"}
G01N2021/8812 (Diffuse illumination) appears on 147 US grants and 186 published applications in this corpus.
Search patents in G01N- Granted patents
- 147
- Published applications
- 186
- Assignees
- 142
- Inventors
- 409
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 4 | 2 |
| 2004 | 2 | 2 |
| 2005 | 1 | 3 |
| 2006 | 3 | 4 |
| 2007 | 2 | 4 |
| 2008 | 1 | 4 |
| 2009 | 3 | 3 |
| 2010 | 3 | 5 |
| 2011 | 1 | 3 |
| 2012 | 1 | 3 |
| 2013 | 4 | 3 |
| 2014 | 6 | 5 |
| 2015 | 1 | 7 |
| 2016 | 4 | 5 |
| 2017 | 8 | 9 |
| 2018 | 5 | 13 |
| 2019 | 13 | 13 |
| 2020 | 13 | 15 |
| 2021 | 12 | 15 |
| 2022 | 9 | 15 |
| 2023 | 10 | 15 |
| 2024 | 11 | 12 |
| 2025 | 15 | 15 |
| 2026 | 7 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Optical foreign substance detection device using light scattering and image analysis15 Sep 2026US 12,736,472 B2Jedex Inc.
- Bonding energy measurement21 Jul 2026US 12,687,485 B2Tokyo Electron Limited
- System and method for automatic inspection of vehicles23 Jun 2026US 12,663,341 B2Spinframe Technologies Ltd
- Camera system7 Apr 2026US 12,596,074 B2Canon Kabushiki Kaisha
- High clarity gemstone facet and internal imaging analysis31 Mar 2026US 12,590,902 B2Gemological Institute of America, Inc. (GIA)
- Spectroscopic based contaminant detection system8 Oct 2026US 2026/0309642 A1
- Surface inspection systems and methods20 Aug 2026US 2026/0243669 A1The Boeing Company
- Electrode tape inspection device and electrode tape inspection method using the same23 Jul 2026US 2026/0210851 A1LG Energy Solution, Ltd.
- Damage detection apparatus, system, and method2 Jul 2026US 2026/0185944 A1
- System and method for surface inspection of a composite part of an aircraft25 Jun 2026US 2026/0175999 A1Airbus SAS
Most cited
By later US patents
- Systems and methods for providing illumination in machine vision systems300US 6,624,597 B2Color Kinetics Incorporated · 2003
- Apparatus and method for characterizing defects in a transparent substrate84US 7,567,344 B2Corning Incorporated · 2009
- Method and apparatus for inspection of solder joints utilizing shape determination from shading79US 5,064,291 AHughes Aircraft Company · 1991
- Multiple beam scanner for an inspection system71US 6,236,454 B1APPLIED Materials.Inc. · 2001
- Optical inspection apparatus and illumination system particularly useful therein70US 5,153,668 AOrbot Systems Ltd. · 1992