Fluorescent organic light emitting elements having high efficiency
US-10135004-B2 · Nov 20, 2018 · US
Thiazine dyes
Thiazine 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 | C09B21/00 |
| Official title | Thiazine dyes |
| Display label | Thiazine dyes |
| Total patents | 133 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 17 |
| 2016 | 15 |
| 2017 | 22 |
| 2018 | 17 |
| 2019 | 19 |
| 2020 | 9 |
| 2021 | 4 |
| 2022 | 9 |
| 2023 | 5 |
| 2024 | 7 |
| 2025 | 7 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Electronic device
US-10065959-B2 · Sep 4, 2018 · US
Dye compound and method for preparing the same, colorant, photosensitive resin composition and optical filter
US-2018187017-A1 · Jul 5, 2018 · US
Leuco polymers as bluing agents in laundry care compositions
US-2018118946-A1 · May 3, 2018 · US
Organic metal complex, light emitting material, delayed fluorescent material, and organic light emitting device
US-9957260-B2 · May 1, 2018 · US
Phenanthrene compounds for organic electronic devices
US-2018102479-A1 · Apr 12, 2018 · US
Fluorescent organic light emitting elements having high efficiency
US-9853224-B2 · Dec 26, 2017 · US
Compound and photoelectric device, image sensor and electronic device including the same
US-2017352811-A1 · Dec 7, 2017 · US
Ruthenium complex dye, dye solution, photoelectric conversion element, and dye-sensitized solar cell
US-2017352493-A1 · Dec 7, 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
Methods of synthesis and/or purification of diaminophenothiazinium compounds
US-2017273986-A1 · Sep 28, 2017 · US
Fluorescent Organic Light Emitting Elements Having High Efficiency
US-2017263868-A1 · Sep 14, 2017 · US
Photopolymer formulations for producing holographic media having highly crosslinked matrix polymers
US-9760060-B2 · Sep 12, 2017 · US
Green coloring composition for use in color filter, colored film, color filter, and solid-state imaging device
US-9740095-B2 · Aug 22, 2017 · US
Compounds for electronic devices
US-9708262-B2 · Jul 18, 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
Methods of synthesis and/or purification of diaminophenothiazinium compounds
US-9675621-B2 · Jun 13, 2017 · US
3,6-disubstituted xanthylium salts
US-2017088534-A1 · Mar 30, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C09B21/00?
- CPC C09B21/00 is the Cooperative Patent Classification code for “Thiazine dyes.”
- How many patents are filed under CPC C09B21/00 (Thiazine dyes)?
- Our database includes 133 publications tagged with this CPC code.
- Is patent activity under CPC C09B21/00 growing?
- Publication counts under this code: 7 in 2024 vs 7 in 2025 (latest complete years).