Novel fluorescent dyes and polymers from dihydrophenanthrene derivatives
US-2025383357-A1 · Dec 18, 2025 · US
four >CH- groups
four >CH- groups · 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 | C09B23/107 |
| Official title | {four >CH- groups} |
| Display label | four >CH- groups |
| Total patents | 65 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 10 |
| 2016 | 10 |
| 2017 | 6 |
| 2018 | 8 |
| 2019 | 3 |
| 2020 | 6 |
| 2021 | 2 |
| 2022 | 1 |
| 2023 | 5 |
| 2024 | 5 |
| 2025 | 8 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Coloring composition, ink jet recording method, image recorded material, and coloring agent compound
US-12466958-B2 · Nov 11, 2025 · US
Water-soluble heterocyclyl polymethine chromophores
US-2025304545-A1 · Oct 2, 2025 · US
Near-infrared cyanine dyes and conjugates thereof
US-12187708-B2 · Jan 7, 2025 · US
Optical filter and imaging device
US-12168730-B2 · Dec 17, 2024 · US
Photostable detectable compounds
US-2024410892-A1 · Dec 12, 2024 · US
Display device and method for manufacturing the same
US-2024306475-A1 · Sep 12, 2024 · US
Compound and labeled biological substance using the same
US-2024132481-A1 · Apr 25, 2024 · US
Near-infrared cyanine dyes and conjugates thereof
US-2024083880-A1 · Mar 14, 2024 · US
Near-infrared cyanine dyes and conjugates thereof
US-11851421-B2 · Dec 26, 2023 · US
Near-infrared cyanine dyes and conjugates thereof
US-2023312523-A1 · Oct 5, 2023 · US
Coloring composition, ink jet recording method, image recorded material, and coloring agent compound
US-2023183489-A1 · Jun 15, 2023 · US
Color matched and bright fluorescent materials composed of small-molecule ionic lattices
US-2023167303-A1 · Jun 1, 2023 · US
Photoacoustic imaging agent
US-2023114083-A1 · Apr 13, 2023 · US
Compound and fluorescently labeled biological substance using the same
US-2022283170-A1 · Sep 8, 2022 · US
IR dyes for fluorescence imaging
US-11167046-B2 · Nov 9, 2021 · US
Methods for dye selection for protein melt temperature determinations
US-2021063405-A1 · Mar 4, 2021 · US
Methods for dye selection for protein melt temperature determinations
US-10866245-B2 · Dec 15, 2020 · US
Optical filter and imaging device
US-2020363576-A1 · Nov 19, 2020 · US
Protective sheet, image display device, spectacle lens, and spectacles
US-10808130-B2 · Oct 20, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C09B23/107?
- CPC C09B23/107 is the Cooperative Patent Classification code for “four >CH- groups.”
- How many patents are filed under CPC C09B23/107 (four >CH- groups)?
- Our database includes 65 publications tagged with this CPC code.
- Is patent activity under CPC C09B23/107 growing?
- Publication counts under this code: 5 in 2024 vs 8 in 2025 (latest complete years).