C09B 67/0001
Post-treatment of organic pigments or dyes
Official title: {Post-treatment of organic pigments or dyes}
C09B67/0001 (Post-treatment of organic pigments or dyes) appears on 1,186 US grants and 869 published applications in this corpus.
Search patents in C09B- Granted patents
- 1,186
- Published applications
- 869
- Assignees
- 413
- Inventors
- 2,584
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 16 | 0 |
| 1977 | 15 | 0 |
| 1978 | 13 | 0 |
| 1979 | 14 | 0 |
| 1980 | 12 | 0 |
| 1981 | 25 | 0 |
| 1982 | 14 | 0 |
| 1983 | 15 | 0 |
| 1984 | 20 | 0 |
| 1985 | 12 | 0 |
| 1986 | 10 | 0 |
| 1987 | 15 | 0 |
| 1988 | 17 | 0 |
| 1989 | 19 | 0 |
| 1990 | 14 | 0 |
| 1991 | 20 | 0 |
| 1992 | 23 | 0 |
| 1993 | 18 | 0 |
| 1994 | 37 | 0 |
| 1995 | 33 | 0 |
| 1996 | 28 | 0 |
| 1997 | 27 | 0 |
| 1998 | 32 | 0 |
| 1999 | 30 | 0 |
| 2000 | 27 | 0 |
| 2001 | 27 | 11 |
| 2002 | 30 | 21 |
| 2003 | 20 | 32 |
| 2004 | 14 | 33 |
| 2005 | 22 | 34 |
| 2006 | 27 | 47 |
| 2007 | 23 | 46 |
| 2008 | 30 | 41 |
| 2009 | 22 | 77 |
| 2010 | 34 | 73 |
| 2011 | 35 | 41 |
| 2012 | 51 | 39 |
| 2013 | 33 | 41 |
| 2014 | 46 | 39 |
| 2015 | 35 | 35 |
| 2016 | 28 | 30 |
| 2017 | 40 | 30 |
| 2018 | 28 | 44 |
| 2019 | 22 | 18 |
| 2020 | 22 | 25 |
| 2021 | 25 | 25 |
| 2022 | 13 | 26 |
| 2023 | 10 | 22 |
| 2024 | 25 | 17 |
| 2025 | 12 | 11 |
| 2026 | 6 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C09B 67/0004Coated particulate pigments or dyes495
- C09B 67/0014Influencing the physical properties by treatment with a liquid310
- C09B 67/0002Grinding168
- C09B 67/0022Wet grinding of pigments157
- C09B 67/0017Influencing the physical properties by treatment with an acid, h2so4117
- C09B 67/002Influencing the physical properties by treatment with an amine53
- C09B 67/0003Drying52
- C09B 67/0021Flushing of pigments36
Recent patents
- Azo pigment, ink, paint, colorant for plastics, colored molded article, colorant for stationery and writing materials, printing agent, toner, dispersion and resist for color filters, and cosmetic material21 Apr 2026US 12,606,717 B2DIC Corporation
- High-hydrophobic, low-bleeding color lake powder, method for preparing same and use thereof7 Apr 2026US 12,595,372 B2Shanghai Co-fun Biotech Co., Ltd.
- Use of encapsulated natural colors17 Mar 2026US 12,577,506 B2Sensient Colors UK Ltd
- Storage stable liquid fugitive colored fire-retardant concentrates10 Mar 2026US 12,570,902 B2Perimeter Solutions LP
- Isoindoline derivatives20 Jan 2026US 12,528,789 B2Sun Chemical Corporation
- Disperse dyes for dyeing polyester fibres8 Oct 2026US 2026/0308841 A1University of Leeds
- Alternative solvent systems and dye formulations10 Sep 2026US 2026/0265529 A1
- Insoluble product, in particular coloring agent, and method for the production thereof3 Sep 2026US 2026/0258250 A1Döhler GmbH
- Process of preparation of residue free solvent blue 67 dye20 Aug 2026US 2026/0242606 A1Rathi Dye Chem (P) Ltd
- Reversibly thermochromic microcapsule pigment11 Jun 2026US 2026/0159693 A1KABUSHIKI KAISHA PILOT CORPORATION (also trading as PILOT CORPORATION)
Most cited
By later US patents
- Electrophoretic particles, and processes for the production thereof510US 7,002,728 B2E Ink Corporation · 2006
- Aqueous pigmented inks for ink jet printers501US 5,085,698 AE. I. Du Pont de Nemours and Company · 1992
- Electrophoretic particles and processes for the production thereof363US 6,822,782 B2E Ink Corporation · 2004
- Recording process and a recording liquid thereof266US 4,597,794 ACanon Kabushiki Kaisha · 1986
- Coated nanoparticles262US 6,548,264 B1University of Florida · 2003