G01J 3/524
Calibration of colorimeters
Official title: {Calibration of colorimeters}
G01J3/524 (Calibration of colorimeters) appears on 591 US grants and 558 published applications in this corpus.
Search patents in G01J- Granted patents
- 591
- Published applications
- 558
- Assignees
- 272
- Inventors
- 1,055
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 3 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 6 | 0 |
| 1993 | 4 | 0 |
| 1994 | 5 | 0 |
| 1995 | 2 | 0 |
| 1996 | 6 | 0 |
| 1997 | 6 | 0 |
| 1998 | 10 | 0 |
| 1999 | 9 | 0 |
| 2000 | 19 | 0 |
| 2001 | 18 | 2 |
| 2002 | 13 | 20 |
| 2003 | 20 | 30 |
| 2004 | 13 | 16 |
| 2005 | 7 | 14 |
| 2006 | 17 | 34 |
| 2007 | 17 | 30 |
| 2008 | 18 | 22 |
| 2009 | 30 | 19 |
| 2010 | 24 | 21 |
| 2011 | 17 | 13 |
| 2012 | 15 | 15 |
| 2013 | 18 | 30 |
| 2014 | 27 | 19 |
| 2015 | 24 | 22 |
| 2016 | 19 | 20 |
| 2017 | 14 | 31 |
| 2018 | 27 | 30 |
| 2019 | 41 | 37 |
| 2020 | 28 | 24 |
| 2021 | 21 | 27 |
| 2022 | 23 | 27 |
| 2023 | 13 | 19 |
| 2024 | 17 | 14 |
| 2025 | 15 | 19 |
| 2026 | 5 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Calibration device for display and personal computer having same25 Aug 2026US 12,716,776 B2LG Electronics Inc.
- Colorimetric apparatus and adjustment method14 Jul 2026US 12,680,876 B2Seiko Epson Corporation
- System and method for color sensor characterization, calibration and threshold-setting28 Apr 2026US 12,613,134 B2Covidien LP
- Electronic test result determination and confirmation7 Apr 2026US 12,594,553 B2Purdue Research Foundation
- Spectral sensitivity measuring device and spectral sensitivity measuring method6 Jan 2026US 12,516,977 B2Sony Semiconductor Solutions Corporation
- Color measurement device, data processing apparatus, measurement correction method, and program13 Aug 2026US 2026/0235496 A1Konica Minolta, Inc.
- Colorimetric device30 Jul 2026US 2026/0219111 A1Kitagawa Industries Co., Ltd.
- Electronic test result determination and confirmation23 Apr 2026US 2026/0108875 A1Purdue Research Foundation
- Method for illumination and system for determining spectral distribution of light for illumination18 Dec 2025US 2025/0383296 A1Nalux Co., Ltd.
- Characterizing optical system performance with a color camera20 Nov 2025US 2025/0354867 A1Lumus Ltd.
Most cited
By later US patents
- Colorimeter and calibration system293US 5,272,518 AHewlett-Packard Company · 1993
- Spectrophotometer for color printer color control with displacement insensitive optics186US 6,384,918 B1Xerox Corporation · 2002
- Color imager bar based spectrophotometer for color printer color control system177US 6,621,576 B2Xerox Corporation · 2003
- Method and apparatus for determining the appearance of an object166US 6,008,905 ADeus Ex Machina Inc. · 1999
- Tristimulus colorimeter for use in the fabrication of artificial teeth159US 3,986,777 AWeber Dental Mfg. Co., Div. of Sterndent Corporation · 1976