Radiation-curable compositions of pigment violet 23 with improved removability from surfaces, method of making a radiation-curable composition and ink containing a radiation-curable composition
US-12084578-B2 · Sep 10, 2024 · US
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Bisoxazines prepared from aminoquinones
Bisoxazines prepared from aminoquinones · 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 | C09B19/02 |
| Official title | Bisoxazines prepared from aminoquinones |
| Display label | Bisoxazines prepared from aminoquinones |
| Total patents | 19 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2016 | 4 |
| 2017 | 3 |
| 2018 | 3 |
| 2020 | 2 |
| 2021 | 4 |
| 2022 | 2 |
| 2024 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
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Method for producing halogenated organic pigment, halogenated organic pigment obtained by the production method, and colored composition comprising the same
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Medical methods utilising high purity diaminophenothiazinium compounds
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Medical methods utilising high purity diaminophenothiazinium compounds
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Methods of chemical synthesis and purification of diaminophenothiazinium compounds including methylthioninium chloride (MTC)
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High purity diaminophenothiazinium compounds including methylthioninium chloride (MTC)
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Light-blocking pigment composition and light-blocking member for display
US-2016200912-A1 · Jul 14, 2016 · US
Method for producing halogenated organic pigment, halogenated organic pigment obtained by the production method, and colored composition comprising the same
US-2016177100-A1 · Jun 23, 2016 · US
High purity diaminophenothiazinium compounds including methylthioninium chloride (mtc)
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High purity diaminophenothiazinium compounds including methylthioninium chloride (MTC)
US-9242946-B2 · Jan 26, 2016 · US