Photocleavage of indican
US-2026062863-A1 · Mar 5, 2026 · US
This page is not indexed by search engines while we improve data quality.
Indigoid dyes
Indigoid dyes · 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 | C09B7/00 |
| Official title | Indigoid dyes |
| Display label | Indigoid dyes |
| Total patents | 19 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 2 |
| 2018 | 3 |
| 2020 | 1 |
| 2021 | 3 |
| 2022 | 2 |
| 2024 | 3 |
| 2025 | 1 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Process for dyeing textiles
US-2026022515-A2 · Jan 22, 2026 · US
Process and apparatus for dyeing textiles
US-12247350-B2 · Mar 11, 2025 · US
Process for dyeing textiles
US-2024368831-A1 · Nov 7, 2024 · US
Thermosensitive recording medium
US-11912052-B2 · Feb 27, 2024 · US
Fluorogenic pH sensitive dyes and their method of use
US-11867698-B2 · Jan 9, 2024 · US
Thermosensitive recording medium
US-2022410610-A1 · Dec 29, 2022 · US
Process for dyeing textiles
US-2022267948-A1 · Aug 25, 2022 · US
Process and apparatus for dyeing textiles
US-2021262162-A1 · Aug 26, 2021 · US
Negative photosensitive resin composition, cured film, and organic el display and manufacturing method therefor
US-2021191264-A1 · Jun 24, 2021 · US
Fluorogenic ph sensitive dyes and their method of use
US-2021041465-A1 · Feb 11, 2021 · US
Fluorogenic pH sensitive dyes and their method of use
US-10845373-B2 · Nov 24, 2020 · US
Fluorogenic ph sensitive dyes and their method of use
US-2018238912-A1 · Aug 23, 2018 · US
Fluorogenic pH sensitive dyes and their method of use
US-9939454-B2 · Apr 10, 2018 · US
Fluorogenic pH sensitive dyes and their method of use
US-9910051-B2 · Mar 6, 2018 · US
Fluorogenic ph sensitive dyes and their method of use
US-2016139158-A1 · May 19, 2016 · US
Multiple component materials having a color-changing composition
US-9265856-B2 · Feb 23, 2016 · US
Ink-jet inks having polymers and near-infrared absorbing dyes
US-9133344-B2 · Sep 15, 2015 · US
Fluorogenic ph sensitive dyes and their method of use
US-2015037834-A1 · Feb 5, 2015 · US