Dye ink composition, cyan dye ink, dye ink for ink jet recording, ink jet recording method, and aqueous dye solution
US-12528945-B2 · Jan 20, 2026 · US
of phthalocyanines · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C09B67/0016 |
| Official title | {of phthalocyanines} |
| Display label | of phthalocyanines |
| Total patents | 28 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 5 |
| 2017 | 4 |
| 2018 | 3 |
| 2019 | 4 |
| 2020 | 2 |
| 2021 | 3 |
| 2022 | 2 |
| 2023 | 1 |
| 2024 | 1 |
| 2026 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-12528945-B2 · Jan 20, 2026 · US
US-11879064-B2 · Jan 23, 2024 · US
US-2023147608-A1 · May 11, 2023 · US
US-2022195198-A1 · Jun 23, 2022 · US
US-2022169859-A1 · Jun 2, 2022 · US
US-11180658-B2 · Nov 23, 2021 · US
US-11059978-B2 · Jul 13, 2021 · US
US-2021071015-A1 · Mar 11, 2021 · US
US-2020109291-A1 · Apr 9, 2020 · US
US-10544307-B2 · Jan 28, 2020 · US
US-10409179-B1 · Sep 10, 2019 · US
US-2019256711-A1 · Aug 22, 2019 · US
US-10247863-B2 · Apr 2, 2019 · US
US-10208212-B2 · Feb 19, 2019 · US
US-10095135-B2 · Oct 9, 2018 · US
US-2018215921-A1 · Aug 2, 2018 · US
US-2018095205-A1 · Apr 5, 2018 · US
US-9835961-B2 · Dec 5, 2017 · US
US-2017336724-A1 · Nov 23, 2017 · US
US-2017190923-A1 · Jul 6, 2017 · US
Answers are generated from the same data shown on this page.