G01N 2021/8819
By using retroreflecting screen
Official title: {by using retroreflecting screen}
G01N2021/8819 (By using retroreflecting screen) appears on 12 US grants and 17 published applications in this corpus.
Search patents in G01N- Granted patents
- 12
- Published applications
- 17
- Assignees
- 18
- Inventors
- 44
- Latest grant
- 19 Sep 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 1 |
| 2016 | 2 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 3 |
| 2019 | 2 | 2 |
| 2020 | 1 | 3 |
| 2021 | 3 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 2 |
| 2024 | 0 | 0 |
| 2025 | 0 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Light projecting device19 Sep 2023US 11,761,900 B2CCS Inc.
- Adaptive diffuse illumination systems and methods23 Nov 2021US 11,181,483 B2Radiant Vision Systems, LLC
- Device and method for observing the radiation backscattered by an object26 Oct 2021US 11,156,551 B2Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- System and method of detecting defect of optical film19 Oct 2021US 11,150,201 B2Shanjin Optoelectronics (Suzhou) Co., Ltd.
- Adaptive diffuse illumination systems and methods7 Jan 2020US 10,527,557 B2Radiant Vision Systems, LLC
- Inspection device, inspection method, and method of manufacturing piston13 Nov 2025US 2025/0347629 A1Hitachi Astemo, Ltd.
- Lighting for an optical monitoring apparatus26 Jun 2025US 2025/0208055 A1BüHler UK Limited
- Imaging device, inspection device, inspection method and substrate processing apparatus5 Oct 2023US 2023/0314343 A1SCREEN Holdings Co., Ltd.
- Apparatus for detecting surface condition of object and method for manufacturing apparatus9 Feb 2023US 2023/0037452 A1ABB Schweiz AG
- Light projecting device12 Aug 2021US 2021/0247326 A1CCS Inc.
Most cited
By later US patents
- Surface inspection using retro-reflective light field25US 5,168,322 ADiffracto Ltd. · 1992
- Illumination apparatus and appearance inspection apparatus including the same4US 7,957,636 B2Canon Kabushiki Kaisha · 2011
- Article conveying system with diffuse illumination2US 10,099,258 B2Compac Technologies Limited · 2018
- Light field illumination container inspection system2US 10,309,908 B2Applied Vision Company, LLC · 2019
- Machine vision inspection systems and methods and aperture covers for use therewith2US 9,467,609 B2Mettler-Toledo AG · 2016