Printing system, method of dyeing medium, and ink set
US-2026084440-A1 · Mar 26, 2026 · US
Anthraquinone dyes · Cooperative Patent Classification (CPC)
Textile and paper production, treatment, and products.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | D06P1/20 |
| Official title | Anthraquinone dyes |
| Display label | Anthraquinone dyes |
| Total patents | 23 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2017 | 1 |
| 2019 | 3 |
| 2020 | 1 |
| 2021 | 4 |
| 2022 | 5 |
| 2023 | 3 |
| 2024 | 1 |
| 2025 | 1 |
| 2026 | 2 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-2026084440-A1 · Mar 26, 2026 · US
US-2026055551-A1 · Feb 26, 2026 · US
US-12421409-B2 · Sep 23, 2025 · US
US-12180649-B2 · Dec 31, 2024 · US
US-2023399772-A1 · Dec 14, 2023 · US
US-11629457-B2 · Apr 18, 2023 · US
US-2023045096-A1 · Feb 9, 2023 · US
US-11407912-B2 · Aug 9, 2022 · US
US-2022204786-A1 · Jun 30, 2022 · US
US-2022195225-A1 · Jun 23, 2022 · US
US-2022154397-A1 · May 19, 2022 · US
US-2022001418-A1 · Jan 6, 2022 · US
US-11021563-B2 · Jun 1, 2021 · US
US-11008700-B2 · May 18, 2021 · US
US-11001965-B2 · May 11, 2021 · US
US-2021040686-A1 · Feb 11, 2021 · US
US-2020131698-A1 · Apr 30, 2020 · US
US-2019338462-A1 · Nov 7, 2019 · US
US-2019323170-A1 · Oct 24, 2019 · US
US-2019218331-A1 · Jul 18, 2019 · US