G01J 3/501
Colorimeters using spectrally-selective light sources
Official title: {Colorimeters using spectrally-selective light sources, e.g. LEDs}
G01J3/501 (Colorimeters using spectrally-selective light sources) appears on 373 US grants and 379 published applications in this corpus.
Search patents in G01J- Granted patents
- 373
- Published applications
- 379
- Assignees
- 206
- Inventors
- 703
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 5 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 2 | 0 |
| 1998 | 8 | 0 |
| 1999 | 4 | 0 |
| 2000 | 10 | 0 |
| 2001 | 4 | 0 |
| 2002 | 10 | 16 |
| 2003 | 18 | 13 |
| 2004 | 8 | 4 |
| 2005 | 6 | 14 |
| 2006 | 7 | 28 |
| 2007 | 11 | 23 |
| 2008 | 17 | 20 |
| 2009 | 20 | 18 |
| 2010 | 20 | 23 |
| 2011 | 14 | 12 |
| 2012 | 16 | 16 |
| 2013 | 16 | 12 |
| 2014 | 9 | 14 |
| 2015 | 11 | 9 |
| 2016 | 10 | 13 |
| 2017 | 11 | 9 |
| 2018 | 7 | 14 |
| 2019 | 16 | 30 |
| 2020 | 19 | 17 |
| 2021 | 15 | 16 |
| 2022 | 7 | 12 |
| 2023 | 16 | 16 |
| 2024 | 11 | 15 |
| 2025 | 11 | 9 |
| 2026 | 8 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Methods and software applications for tinting using low resolution spectrophotometer1 Sep 2026US 12,723,921 B2Swimc LLC
- Colorimeter and chromaticity measurement method26 May 2026US 12,638,331 B2Yokogawa Electric Corporation
- Color measurement with structured light26 May 2026US 12,638,332 B2Ivoclar Vivadent AG
- System and method for color sensor characterization, calibration and threshold-setting28 Apr 2026US 12,613,134 B2Covidien LP
- Light sensor7 Apr 2026US 12,596,033 B2Nix Sensor Ltd.
- Method to Correct Glass Window to SCE Measurement17 Sep 2026US 2026/0276443 A1Datacolor Inc.
- Hyperspectral imaging with tool tracking in a light deficient environment16 Jul 2026US 2026/0203921 A1Cilag GmbH International
- Light source arrangement for improved sensitivity measurements of ambient light and color sensors and method for providing such a light source arrangement23 Apr 2026US 2026/0110575 A1ams-OSRAM Asia Pacific Pte. Ltd.
- Hyperspectral imaging in a light deficient environment16 Apr 2026US 2026/0105621 A1Cilag GmbH International
- Calculation unit, and associated hue determination device, fluid dispensing system and dispensing method26 Feb 2026US 2026/0056056 A1Exel Industries
Most cited
By later US patents
- LED luminaire with electrically adjusted color balance using photodetector435US 6,495,964 B1Koninklijke Philips Electronics N. V. · 2002
- Object recognition system and method246US 6,069,696 APSC Scanning, Inc. · 2000
- Method and apparatus for colour imaging a three-dimensional structure228US 7,319,529 B2Cadent Ltd. · 2008
- Method for providing data associated with the intraoral cavity219US 7,698,068 B2Cadent Ltd. · 2010
- Spectral imaging system207US 6,690,466 B2Cambridge Research & Instrumentation, Inc. · 2004