Method for producing quinacridone solid solution pigment, pigment dispersion, and inkjet ink
US-2022275214-A1 · Sep 1, 2022 · US
Quinacridones
Quinacridones · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C09B48/00 |
| Official title | Quinacridones |
| Display label | Quinacridones |
| Total patents | 86 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 4 |
| 2017 | 14 |
| 2018 | 7 |
| 2019 | 10 |
| 2020 | 12 |
| 2021 | 9 |
| 2022 | 9 |
| 2023 | 6 |
| 2024 | 6 |
| 2025 | 6 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Photosensitive coloring composition, cured film, color filter, solid-state imaging element, and image display device
US-11287739-B2 · Mar 29, 2022 · US
Photoelectric conversion film, photoelectric conversion element and electronic device
US-2021257561-A1 · Aug 19, 2021 · US
Method of making functionalized quinacridone pigments
US-11084935-B2 · Aug 10, 2021 · US
Inkjet ink composition
US-2021189160-A1 · Jun 24, 2021 · US
Black inkjet ink composition
US-2021155815-A1 · May 27, 2021 · US
Photoelectric conversion film, photoelectric conversion element and electronic device
US-11018308-B2 · May 25, 2021 · US
Condensed polycyclic organic pigment composition containing polyvalent metal inorganic salt
US-2021071015-A1 · Mar 11, 2021 · US
Solid solution of quinacridone and ink composition containing same
US-2021040327-A1 · Feb 11, 2021 · US
Water-based ink for ink-jet recording
US-2021009832-A1 · Jan 14, 2021 · US
Water-based ink for ink-jet recording
US-2021009829-A1 · Jan 14, 2021 · US
Method for producing quinacridone solid-solution pigment, pigment dispersion, and ink-jet ink
US-2020407563-A1 · Dec 31, 2020 · US
Synergists for quinacridone magenta pigments
US-2020377470-A1 · Dec 3, 2020 · US
Aqueous pigment co-dispersions
US-10759954-B2 · Sep 1, 2020 · US
Method of making functionalized quinacridone pigments
US-2020239695-A1 · Jul 30, 2020 · US
Pigments for filtering the solar spectrum
US-10689529-B2 · Jun 23, 2020 · US
Nonaqueous ink-jet magenta ink composition
US-10683428-B2 · Jun 16, 2020 · US
Photoelectric conversion film, photoelectric conversion element and electronic device
US-10672994-B2 · Jun 2, 2020 · US
Method of making functionalized quinacridone pigments
US-10662334-B2 · May 26, 2020 · US
Photoelectric conversion film, photoelectric conversion element and electronic device
US-2020161566-A1 · May 21, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C09B48/00?
- CPC C09B48/00 is the Cooperative Patent Classification code for “Quinacridones.”
- How many patents are filed under CPC C09B48/00 (Quinacridones)?
- Our database includes 86 publications tagged with this CPC code.
- Is patent activity under CPC C09B48/00 growing?
- Publication counts under this code: 6 in 2024 vs 6 in 2025 (latest complete years).