G01N 21/958
Inspecting transparent materials or objects
Official title: Inspecting transparent materials {or objects, e.g. windscreens (for conveyed flat sheet or rod G01N21/896)}
G01N21/958 (Inspecting transparent materials or objects) appears on 626 US grants and 688 published applications in this corpus.
Search patents in G01N- Granted patents
- 626
- Published applications
- 688
- Assignees
- 434
- Inventors
- 1,719
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 5 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 7 | 0 |
| 1999 | 2 | 0 |
| 2000 | 8 | 0 |
| 2001 | 11 | 4 |
| 2002 | 11 | 8 |
| 2003 | 11 | 9 |
| 2004 | 7 | 11 |
| 2005 | 9 | 13 |
| 2006 | 6 | 17 |
| 2007 | 21 | 21 |
| 2008 | 11 | 26 |
| 2009 | 11 | 21 |
| 2010 | 15 | 15 |
| 2011 | 19 | 18 |
| 2012 | 11 | 13 |
| 2013 | 7 | 26 |
| 2014 | 21 | 27 |
| 2015 | 21 | 35 |
| 2016 | 31 | 40 |
| 2017 | 30 | 33 |
| 2018 | 36 | 32 |
| 2019 | 33 | 41 |
| 2020 | 48 | 44 |
| 2021 | 32 | 41 |
| 2022 | 28 | 54 |
| 2023 | 38 | 39 |
| 2024 | 47 | 36 |
| 2025 | 29 | 38 |
| 2026 | 23 | 26 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for detecting soiling22 Sep 2026US 12,742,738 B2BRAVE Analytics GmbH
- Optical scanning system for non-destructively acquiring three-dimensional structure of object1 Sep 2026US 12,723,989 B2Opxion Technology Inc.
- Optical-computing device and method for analysing light passing through a container made of transparent or translucent material by means of a digital polarimetric camera25 Aug 2026US 12,716,850 B2Tiama
- Attenuating an inspection device that inspects transparent or translucent cylindrical body14 Jul 2026US 12,680,965 B2Ckd Corporation
- Method for detecting optical defects within windshield7 Jul 2026US 12,674,766 B2Saint-Gobain Sekurit France
- Image-based transparent object defect detection24 Sep 2026US 2026/0289765 A1Align Technology, Inc.
- Inspection device3 Sep 2026US 2026/0259036 A1Hitachi High-Tech Corporation
- Optical transmission measuring device and method of measurement13 Aug 2026US 2026/0235513 A1Hukseflux Holding B.V.
- Device for inspecting a planar or web-shaped object6 Aug 2026US 2026/0227341 A1Isra Vision AG
- Systems, apparatus, and methods for lens metrology30 Jul 2026US 2026/0219130 A1
Most cited
By later US patents
- Optical components107US 9,423,360 B1Microsoft Technology Licensing, LLC · 2016
- Dark view inspection system for transparent media81US 6,633,377 B1Image Processing Systems, Inc. · 2003
- Determination of tensile membrane stress and compressive layer thickness in tempered glass using a CO.sub.2 laser beam58US 5,525,138 AFord Motor Company · 1996
- Methods and systems for detecting screen covers on electronic devices51US 9,885,672 B2ecoATM, LLC · 2018
- Method and apparatus for detecting cosmetic defects in opthalmic lenses49US 3,988,068 AItek Corporation · 1976