G01N 2021/8905
Directional selective optics
Official title: {Directional selective optics, e.g. slits, spatial filters}
G01N2021/8905 (Directional selective optics) appears on 27 US grants and 19 published applications in this corpus.
Search patents in G01N- Granted patents
- 27
- Published applications
- 19
- Assignees
- 31
- Inventors
- 82
- Latest grant
- 23 Jan 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 2 |
| 2005 | 1 | 3 |
| 2006 | 2 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 2 | 1 |
| 2010 | 0 | 0 |
| 2011 | 2 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 3 |
| 2020 | 1 | 2 |
| 2021 | 1 | 2 |
| 2022 | 2 | 0 |
| 2023 | 2 | 1 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Optical line sensor with pair of holding members separably attached at ends of illumination and light receiving units23 Jan 2024US 11,882,254 B2Vienex Corporation
- Detection and characterization of defects in pharmaceutical cylindrical containers12 Dec 2023US 11,841,327 B2SCHOTT Pharma Schweiz AG
- Optical testing apparatus25 Apr 2023US 11,635,374 B2Advantest Corporation
- Material testing by angle-variable illumination22 Nov 2022US 11,506,485 B2Carl Zeiss Industrielle Messtechnik GmbH
- Lighting for defect inspection of sheet-shaped objects, defect inspection apparatus for sheet-shaped objects, and method of defect inspection of sheet-shaped objects24 May 2022US 11,341,630 B2Toray Industries, Inc.
- Optical line sensor23 Nov 2023US 2023/0379420 A1Vienex Corporation
- Lighting for defect inspection of sheet-shaped objects, defect inspection apparatus for sheet-shaped objects, and method of defect inspection of sheet-shaped objects18 Nov 2021US 2021/0358109 A1Toray Industries, Inc.
- Detection and characterization of defects in pharmaceutical cylindrical containers29 Jul 2021US 2021/0231576 A1SCHOTT Schweiz AG
- Optical testing apparatus12 Nov 2020US 2020/0355608 A1Advantest Corporation
- Material Testing By Angle-Variable Illumination21 May 2020US 2020/0158499 A1Carl Zeiss Industrielle Messtechnik GmbH
Most cited
By later US patents
- Massively parallel inspection and imaging system101US 6,208,411 B1KLA-Tencor Corporation · 2001
- Automatic high speed optical inspection system62US 5,131,755 A1992
- Apparatus for surface inspections58US 5,377,002 ATet Techno Trust Investment Settlement · 1994
- Inspecting device for inspecting printed state of cream solder40US 5,450,204 ASharp Kabushiki Kaisha · 1995
- Apparatus for surface inspection39US 5,377,001 ATet Techno Trust Investment Settlement · 1994