B41M 5/333
Colour developing components therefor
Official title: Colour developing components therefor, e.g. acidic compounds
B41M5/333 (Colour developing components therefor) appears on 664 US grants and 424 published applications in this corpus.
Search patents in B41M- Granted patents
- 664
- Published applications
- 424
- Assignees
- 167
- Inventors
- 1,013
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 4 | 0 |
| 1982 | 7 | 0 |
| 1983 | 6 | 0 |
| 1984 | 11 | 0 |
| 1985 | 22 | 0 |
| 1986 | 25 | 0 |
| 1987 | 9 | 0 |
| 1988 | 18 | 0 |
| 1989 | 18 | 0 |
| 1990 | 13 | 0 |
| 1991 | 13 | 0 |
| 1992 | 24 | 0 |
| 1993 | 13 | 0 |
| 1994 | 16 | 0 |
| 1995 | 32 | 0 |
| 1996 | 12 | 0 |
| 1997 | 21 | 0 |
| 1998 | 23 | 0 |
| 1999 | 24 | 0 |
| 2000 | 16 | 0 |
| 2001 | 14 | 5 |
| 2002 | 12 | 15 |
| 2003 | 14 | 21 |
| 2004 | 19 | 23 |
| 2005 | 18 | 32 |
| 2006 | 17 | 19 |
| 2007 | 16 | 23 |
| 2008 | 10 | 15 |
| 2009 | 8 | 17 |
| 2010 | 5 | 10 |
| 2011 | 12 | 22 |
| 2012 | 14 | 8 |
| 2013 | 18 | 15 |
| 2014 | 21 | 16 |
| 2015 | 10 | 9 |
| 2016 | 16 | 19 |
| 2017 | 14 | 11 |
| 2018 | 14 | 20 |
| 2019 | 13 | 9 |
| 2020 | 6 | 24 |
| 2021 | 8 | 18 |
| 2022 | 12 | 13 |
| 2023 | 9 | 16 |
| 2024 | 14 | 24 |
| 2025 | 10 | 15 |
| 2026 | 7 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Heat-sensitive recording medium1 Sep 2026US 12,722,411 B2Osaka Sealing Printing Co., Ltd.
- Composition4 Aug 2026US 12,697,831 B2Datalase Ltd.
- Image forming method, image forming apparatus, and image forming system2 Jun 2026US 12,644,226 B2Konica Minolta, Inc.
- Thermosensitive recording layer forming liquid, thermosensitive recording medium and production method thereof, and image recording method12 May 2026US 12,623,478 B2Ricoh Company, Ltd.
- Direct thermal recording media with diarylurea combinations for oil resistance10 Feb 2026US 12,545,045 B2Appvion, Inc.
- Composition20 Aug 2026US 2026/0241736 A1Datalase Ltd.
- Thermal recording material30 Apr 2026US 2026/0116113 A1Osaka Sealing Printing Co., Ltd.
- Heat-sensitive recording medium1 Jan 2026US 2026/0001368 A1Osaka Sealing Printing Co., Ltd.
- Heat sensitive recording medium1 Jan 2026US 2026/0002038 A1Osaka Sealing Printing Co., Ltd.
- Heat-sensitive recording medium1 Jan 2026US 2026/0002039 A1Osaka Sealing Printing Co., Ltd.
Most cited
By later US patents
- Reversible heat sensitive recording composition93US 4,720,301 AThe Pilot Ink Co., Ltd. · 1988
- Reversible multi-color thermal recording medium66US 5,710,094 ANippon Paper Industries Co., Ltd. · 1998
- Thermosensitive recording material having recording layer containing fluorescent dye65US 4,855,277 AHobart Corporation · 1989
- Thermal imaging system59US 6,801,233 B2Polaroid Corporation · 2004
- Thermosensitive recording material having recording layer containing fluorescent dye composition56US 4,950,638 ARicoh Company, Ltd. · 1990