G06K 15/027
Test patterns and calibration
Official title: {Test patterns and calibration (arrangements for controlling or analysing printing mechanisms of typewriters or selective printing units B41J29/393 takes precedence; colour correction using test pattern analysis in general H04N1/6033)}
G06K15/027 (Test patterns and calibration) appears on 669 US grants and 786 published applications in this corpus.
Search patents in G06K- Granted patents
- 669
- Published applications
- 786
- Assignees
- 130
- Inventors
- 1,189
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 6 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 2 |
| 2002 | 5 | 2 |
| 2003 | 2 | 2 |
| 2004 | 4 | 4 |
| 2005 | 4 | 18 |
| 2006 | 2 | 4 |
| 2007 | 5 | 4 |
| 2008 | 2 | 8 |
| 2009 | 4 | 12 |
| 2010 | 7 | 7 |
| 2011 | 7 | 6 |
| 2012 | 12 | 18 |
| 2013 | 9 | 21 |
| 2014 | 33 | 41 |
| 2015 | 40 | 47 |
| 2016 | 43 | 40 |
| 2017 | 39 | 38 |
| 2018 | 34 | 50 |
| 2019 | 42 | 53 |
| 2020 | 65 | 59 |
| 2021 | 53 | 73 |
| 2022 | 62 | 76 |
| 2023 | 73 | 45 |
| 2024 | 46 | 58 |
| 2025 | 23 | 58 |
| 2026 | 19 | 40 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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Most cited
By later US patents
- Self adjusting video interface90US 4,964,069 AInternational Business Machines Corporation · 1990
- Method and apparatus for recording color with plural printheads43US 5,040,003 AEastman Kodak Company · 1991
- Label printer42US 4,685,702 ATeraoka Seikosho Co., Ltd. · 1987
- Method of adjusting print uniformity40US 6,819,352 B2Xerox Corporation · 2004
- Method and apparatus for detecting and compensating light emission from an LED array37US 4,897,672 AFujitsu Limited · 1990