Pyrenyloxysulfonic acid fluorescent agents
US-9513284-B2 · Dec 6, 2016 · US
Pyrene dyes
Pyrene 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 | C09B57/001 |
| Official title | {Pyrene dyes} |
| Display label | Pyrene dyes |
| Total patents | 186 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 29 |
| 2016 | 36 |
| 2017 | 17 |
| 2018 | 29 |
| 2019 | 18 |
| 2020 | 13 |
| 2021 | 12 |
| 2022 | 10 |
| 2023 | 9 |
| 2024 | 5 |
| 2025 | 4 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Organic electroluminescent device
US-2016322570-A1 · Nov 3, 2016 · US
Excimer forming compounds
US-2016304473-A1 · Oct 20, 2016 · US
Aromatic amine derivative and organic electroluminescent device using the same
US-2016285012-A1 · Sep 29, 2016 · US
Condensed cyclic compound and organic light-emitting diode including the same
US-9450190-B2 · Sep 20, 2016 · US
Photoelectric conversion element and method of using the same, image sensor, and optical sensor
US-9412952-B2 · Aug 9, 2016 · US
Organic light-emitting device
US-2016225992-A1 · Aug 4, 2016 · US
Organic electroluminescent device and boric acid and borinic acid derivatives used therein
US-9403849-B2 · Aug 2, 2016 · US
Compound for organic electroluminescent device
US-2016218293-A1 · Jul 28, 2016 · US
Organic light-emitting device
US-2016211458-A1 · Jul 21, 2016 · US
Wavelength conversion film having pressure sensitive adhesive layer to enhance solar harvesting efficiency
US-9394479-B2 · Jul 19, 2016 · US
Aromatic amine derivative and organic electroluminescent device using the same
US-9391279-B2 · Jul 12, 2016 · US
Highly-fluorescent and photo-stable chromophores for enhanced solar harvesting efficiency
US-9382424-B2 · Jul 5, 2016 · US
Organic electroluminescent element and electronic device
US-2016181543-A1 · Jun 23, 2016 · US
Anthracene derivative and organic electroluminescent element using same
US-2016181542-A1 · Jun 23, 2016 · US
Organic light-emitting device
US-2016163999-A1 · Jun 9, 2016 · US
Methine dyes with large organic counter anion for dye sensitized solar cells
US-2016155575-A1 · Jun 2, 2016 · US
Droplet Assembly by 3D Printing
US-2016136888-A1 · May 19, 2016 · US
NAPHTHO[2,1-b]FLUORANTHENE COMPOUND, ORGANIC LIGHT-EMITTING DEVICE, DISPLAY APPARATUS, LIGHTING APPARATUS, IMAGE FORMING APPARATUS, AND EXPOSING APPARATUS
US-2016141506-A1 · May 19, 2016 · US
Organic light-emitting devices
US-2016118590-A1 · Apr 28, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C09B57/001?
- CPC C09B57/001 is the Cooperative Patent Classification code for “Pyrene dyes.”
- How many patents are filed under CPC C09B57/001 (Pyrene dyes)?
- Our database includes 186 publications tagged with this CPC code.
- Is patent activity under CPC C09B57/001 growing?
- Publication counts under this code: 5 in 2024 vs 4 in 2025 (latest complete years).