Fluorescent compound for detection of isocyanate substances, preparation method and use thereof as test-paper-type detection probe
US-11427532-B2 · Aug 30, 2022 · US
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Disazomethine dyes
Disazomethine 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 | C09B55/005 |
| Official title | {Disazomethine dyes} |
| Display label | Disazomethine dyes |
| Total patents | 11 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2017 | 2 |
| 2019 | 4 |
| 2020 | 1 |
| 2021 | 1 |
| 2022 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fluorescent compound for detection of isocyanate substances, preparation method and use thereof as test-paper-type detection probe
US-2022041545-A1 · Feb 10, 2022 · US
Sphinogosine-1 -phosphate receptor modulators for treatment of cardiopulmonary disorders
US-11034691-B2 · Jun 15, 2021 · US
Highly fluorescent pyrrole-BF2 chromophores
US-10676489-B2 · Jun 9, 2020 · US
Electrowetting element
US-10444489-B2 · Oct 15, 2019 · US
Sphinogosine-1-phosphate receptor modulators for treatment of cardiopulmonary disorders
US-2019300527-A1 · Oct 3, 2019 · US
Sphinogosine-1-phosphate receptor modulators for treatment of cardiopulmonary disorders
US-10323029-B2 · Jun 18, 2019 · US
Highly fluorescent pyrrole-bf2 chromophores
US-2019119305-A1 · Apr 25, 2019 · US
Sphinogosine-1-phosphate receptor modulators for treatment of cardiopulmonary disorders
US-2017217963-A1 · Aug 3, 2017 · US
Electrowetting element
US-2017003497-A1 · Jan 5, 2017 · US
Electrowetting device
US-9447282-B2 · Sep 20, 2016 · US