C09B 67/0036
Mixtures of quinacridones
Official title: {Mixtures of quinacridones}
C09B67/0036 (Mixtures of quinacridones) appears on 66 US grants and 51 published applications in this corpus.
Search patents in C09B- Granted patents
- 66
- Published applications
- 51
- Assignees
- 27
- Inventors
- 138
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 2 |
| 2002 | 3 | 3 |
| 2003 | 1 | 0 |
| 2004 | 2 | 3 |
| 2005 | 0 | 4 |
| 2006 | 3 | 2 |
| 2007 | 2 | 1 |
| 2008 | 1 | 6 |
| 2009 | 1 | 1 |
| 2010 | 3 | 4 |
| 2011 | 2 | 2 |
| 2012 | 5 | 5 |
| 2013 | 2 | 1 |
| 2014 | 2 | 1 |
| 2015 | 2 | 0 |
| 2016 | 0 | 2 |
| 2017 | 2 | 1 |
| 2018 | 1 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 4 |
| 2021 | 0 | 3 |
| 2022 | 2 | 1 |
| 2023 | 1 | 1 |
| 2024 | 2 | 1 |
| 2025 | 0 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Inkjet ink and inkjet recording device14 Jul 2026US 12,679,986 B2KYOCERA Document Solutions Inc.
- Solid solution of quinacridone and ink composition containing same1 Oct 2024US 12,104,063 B2DIC Corporation
- Method for producing quinacridone solid-solution pigment, pigment dispersion, and ink-jet ink12 Mar 2024US 11,926,741 B2Dainichiseika Color & Chemicals Mfg. Co., Ltd.
- Method for producing quinacridone solid solution pigment, pigment dispersion, and inkjet ink3 Oct 2023US 11,773,267 B2Dainichiseika Color & Chemicals Mfg. Co., Ltd.
- Method for producing quinacridone solid solution pigment, pigment dispersion, and inkjet ink27 Dec 2022US 11,535,755 B2Dainichiseika Color & Chemicals Mfg. Co., Ltd.
- Inkjet ink and inkjet recording device12 Jun 2025US 2025/0188299 A1KYOCERA Document Solutions Inc.
- Quinacridone pigment, pigment dispersion, and aqueous inkjet ink9 Jan 2025US 2025/0011599 A1DIC Corporation
- Quinacridone solid solution pigment, pigment dispersion, method of producing quinacridone solid solution pigment, method of producing pigment dispersion, and ink29 Aug 2024US 2024/0287311 A1Canon Kabushiki Kaisha
- Magenta pigment dispersants18 May 2023US 2023/0151236 A1Hewlett-Packard Development Company, L. P.
- Method for producing quinacridone solid solution pigment, pigment dispersion, and inkjet ink1 Sep 2022US 2022/0275214 A1Dainichiseika Color & Chemicals Mfg. Co., Ltd.
Most cited
By later US patents
- Preparation of pigmentary form of quinacridone pigments35US 4,455,173 AE. I. Du Pont de Nemours and Company · 1984
- Process for preparation of quinacridone solid solutions26US 4,895,949 ACiba-Geigy Corporation · 1990
- Pigment formulations24US 4,256,507 ABASF SE · 1981
- Quinacridones having selectively adjusted triboelectric effects23US 5,137,576 AHoechst Aktiengesellschaft · 1992
- Surface modified pigment compositions21US 4,844,742 ACiba-Geigy Corporation · 1989