Phosphor integrated dots nanoparticles and labeling agent using same
US-2018362770-A1 · Dec 20, 2018 · US
Oxazine dyes
Oxazine 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 | C09B19/00 |
| Official title | Oxazine dyes |
| Display label | Oxazine dyes |
| Total patents | 159 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 14 |
| 2016 | 15 |
| 2017 | 25 |
| 2018 | 20 |
| 2019 | 24 |
| 2020 | 7 |
| 2021 | 12 |
| 2022 | 15 |
| 2023 | 10 |
| 2024 | 6 |
| 2025 | 6 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fluorescent organic light emitting elements having high efficiency
US-10135004-B2 · Nov 20, 2018 · US
Infrared-sensitive color developing composition, lithographic printing plate precursor, plate making method for lithographic printing plate, and infrared-sensitive color developer
US-10119028-B2 · Nov 6, 2018 · US
Luminogenic and fluorogenic compounds and methods to detect molecules or conditions
US-10077244-B2 · Sep 18, 2018 · US
Compounds for electronic devices
US-10008673-B2 · Jun 26, 2018 · US
Antioxidant humic acid derivatives and methods of preparation and use
US-9932319-B2 · Apr 3, 2018 · US
Fluorescent organic light emitting elements having high efficiency
US-9853224-B2 · Dec 26, 2017 · US
Fluorescent metal ion indicators with large stokes shifts
US-9846168-B2 · Dec 19, 2017 · US
Ruthenium complex dye, dye solution, photoelectric conversion element, and dye-sensitized solar cell
US-2017352493-A1 · Dec 7, 2017 · US
Cationic benzoxazine derivatives and use in hair dyeing
US-2017327690-A1 · Nov 16, 2017 · US
Materials for organic electroluminescent devices
US-2017317283-A1 · Nov 2, 2017 · US
Phenanthrene compounds for organic electronic devices
US-9799833-B2 · Oct 24, 2017 · US
Rapid fluorescence tagging of glycans and other biomolecules with enhanced MS signals
US-9772333-B2 · Sep 26, 2017 · US
Fluorescent Organic Light Emitting Elements Having High Efficiency
US-2017263868-A1 · Sep 14, 2017 · US
Oral Sampling Swab And Uses Thereof
US-2017231603-A1 · Aug 17, 2017 · US
Compound, device and method of making same
US-9735370-B2 · Aug 15, 2017 · US
Fluorescent compounds
US-9701840-B2 · Jul 11, 2017 · US
New Imaging Agents and Methods of Identifying Same
US-2017183356-A1 · Jun 29, 2017 · US
Fluorescent Organic Light Emitting Elements Having High Efficiency
US-2017186976-A1 · Jun 29, 2017 · US
Light emitting material, delayed fluorescent emitter, organic light emitting device, and compound
US-9685615-B2 · Jun 20, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C09B19/00?
- CPC C09B19/00 is the Cooperative Patent Classification code for “Oxazine dyes.”
- How many patents are filed under CPC C09B19/00 (Oxazine dyes)?
- Our database includes 159 publications tagged with this CPC code.
- Is patent activity under CPC C09B19/00 growing?
- Publication counts under this code: 6 in 2024 vs 6 in 2025 (latest complete years).