G01J 3/51
Using colour filters
Official title: using colour filters
G01J3/51 (Using colour filters) appears on 1,039 US grants and 968 published applications in this corpus.
Search patents in G01J- Granted patents
- 1,039
- Published applications
- 968
- Assignees
- 484
- Inventors
- 1,767
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 4 | 0 |
| 1978 | 9 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 5 | 0 |
| 1982 | 1 | 0 |
| 1983 | 4 | 0 |
| 1984 | 5 | 0 |
| 1985 | 4 | 0 |
| 1986 | 3 | 0 |
| 1987 | 7 | 0 |
| 1988 | 4 | 0 |
| 1989 | 6 | 0 |
| 1990 | 7 | 0 |
| 1991 | 4 | 0 |
| 1992 | 12 | 0 |
| 1993 | 5 | 0 |
| 1994 | 7 | 0 |
| 1995 | 7 | 0 |
| 1996 | 6 | 0 |
| 1997 | 9 | 0 |
| 1998 | 26 | 0 |
| 1999 | 20 | 0 |
| 2000 | 20 | 0 |
| 2001 | 30 | 10 |
| 2002 | 20 | 32 |
| 2003 | 24 | 25 |
| 2004 | 14 | 19 |
| 2005 | 15 | 38 |
| 2006 | 31 | 33 |
| 2007 | 22 | 39 |
| 2008 | 34 | 53 |
| 2009 | 37 | 29 |
| 2010 | 32 | 38 |
| 2011 | 24 | 45 |
| 2012 | 29 | 42 |
| 2013 | 30 | 45 |
| 2014 | 45 | 66 |
| 2015 | 50 | 39 |
| 2016 | 38 | 32 |
| 2017 | 31 | 43 |
| 2018 | 49 | 49 |
| 2019 | 54 | 50 |
| 2020 | 45 | 55 |
| 2021 | 43 | 43 |
| 2022 | 33 | 44 |
| 2023 | 41 | 36 |
| 2024 | 37 | 25 |
| 2025 | 31 | 25 |
| 2026 | 13 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Multi-application optical sensing apparatus and method thereof21 Jul 2026US 12,687,432 B2Artilux, Inc.
- Hyperspectral sensor with diffractive focusing elements and color filters5 May 2026US 12,621,578 B2Sony Semiconductor Solutions Corporation
- Measurement optical system and photometric/colorimetric device28 Apr 2026US 12,613,136 B2Konica Minolta, Inc.
- Compensation of optical alignment issues for sectored-view multi-spectral optical sensors24 Mar 2026US 12,584,791 B2ams Sensors Germany GmbH
- Color measurement apparatus24 Mar 2026US 12,584,793 B2Seiko Epson Corporation
- Method and apparatus for segmented spectral measurement using od filters for nvis radiance calculation8 Oct 2026US 2026/0309548 A1Novanta Corporation
- Fire classification based flame detection1 Oct 2026US 2026/0298712 A1
- Focus scanning apparatus recording color17 Sep 2026US 2026/0272627 A13Shape A/S
- Photodetection device10 Sep 2026US 2026/0266662 A1Sony Semiconductor Solutions Corporation
- Spectral sensor system with spatially modified center wavelengths16 Jul 2026US 2026/0202248 A1Spectricity
Most cited
By later US patents
- Two-dimensional imager with solid-state auto-focus496US 8,988,590 B2Intermec IP Corp. · 2015
- Vehicle headlight control using imaging sensor406US 7,339,149 B1Donnelly Corporation · 2008
- Portable data collection device with LED targeting and illumination assembly390US 5,783,811 AMetanetics Corporation · 1998
- Portable data collection device with dataform decoding and image capture capability364US 6,019,286 AMetanetics Corporation · 2000
- Image sensing system for controlling an accessory or headlight of a vehicle331US 7,388,182 B2Donnelly Corporation · 2008