Display device including a touch insulation layer and a reflection adjustment layer, electronic device, and method for manufacturing a display device
US-2026033220-A1 · Jan 29, 2026 · US
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Hydroxy-anthraquinones; Ethers or esters thereof {(C09B1/007 takes precedence)}
Hydroxy-anthraquinones; Ethers or esters thereof {(C09B1/007 takes precedence)} · 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 | C09B1/02 |
| Official title | Hydroxy-anthraquinones; Ethers or esters thereof {(C09B1/007 takes precedence)} |
| Display label | Hydroxy-anthraquinones; Ethers or esters thereof {(C09B1/007 takes precedence)} |
| Total patents | 16 |
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 | 3 |
| 2017 | 1 |
| 2018 | 1 |
| 2019 | 5 |
| 2022 | 1 |
| 2023 | 1 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Laminate, release agent composition, and method for producing processed semiconductor substrate
US-2025065601-A1 · Feb 27, 2025 · US
Organic materials with special optical effects
US-11613513-B2 · Mar 28, 2023 · US
Leuco compounds
US-11236235-B2 · Feb 1, 2022 · US
Organic Materials with Special Optical Effects
US-2019337885-A1 · Nov 7, 2019 · US
Leuco compounds
US-2019112488-A1 · Apr 18, 2019 · US
Microcrystal exfoliation by UV light irradiation
US-10259941-B1 · Apr 16, 2019 · US
Carmine colorants
US-10184024-B2 · Jan 22, 2019 · US
Spontaneous peeling of tetragonal microcrystals with short pulses of UV-light
US-10179857-B1 · Jan 15, 2019 · US
Organic electroluminescent device
US-9871213-B2 · Jan 16, 2018 · US
Azo compound, ink containing azo compound, and display and electronic paper containing the ink
US-9732226-B2 · Aug 15, 2017 · US
Organic electroluminescent device
US-2016322570-A1 · Nov 3, 2016 · US
Organic electroluminescent device and boric acid and borinic acid derivatives used therein
US-9403849-B2 · Aug 2, 2016 · US
Permanent attachment of agents to surfaces containing C-H functionality
US-9315628-B2 · Apr 19, 2016 · US
Organic electroluminescent device and boric acid and borinic acid derivatives used therein
US-2015322091-A1 · Nov 12, 2015 · US
Azo compound, ink containing azo compound, and display and electronic paper containing the ink
US-2015191601-A1 · Jul 9, 2015 · US