Quantum dot color filter substrate, manufacturing method thereof, and display panel
US-12523805-B2 · Jan 13, 2026 · US
with alkali or alkakine earth metals
with alkali or alkakine earth metals · 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 | C09K11/613 |
| Official title | {with alkali or alkakine earth metals} |
| Display label | with alkali or alkakine earth metals |
| Total patents | 27 |
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 | 2 |
| 2017 | 2 |
| 2018 | 3 |
| 2019 | 6 |
| 2020 | 6 |
| 2021 | 3 |
| 2022 | 2 |
| 2024 | 1 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Perovskite powder, light emitting layer for light emitting device and method for manufacturing the same
US-2025376385-A1 · Dec 11, 2025 · US
A radiation sensing material
US-2024318075-A1 · Sep 26, 2024 · US
Double perovskite
US-2022153581-A1 · May 19, 2022 · US
Quantum dot color filter substrate, manufacturing method thereof, and display panel
US-2022003903-A1 · Jan 6, 2022 · US
Coated red line emitting phosphors
US-11149195-B2 · Oct 19, 2021 · US
Coated manganese doped phosphors
US-11060023-B2 · Jul 13, 2021 · US
Fluoride-based phosphors for light emitting device
US-11053438-B2 · Jul 6, 2021 · US
Phosphor materials for light sources and method for manufacturing the same
US-10851293-B2 · Dec 1, 2020 · US
Red-emitting phosphors, processes and devices
US-10815423-B2 · Oct 27, 2020 · US
Process for producing fluorescent material
US-10759995-B2 · Sep 1, 2020 · US
Coated manganese doped phosphors
US-2020199446-A1 · Jun 25, 2020 · US
Light converting nanoparticle, method of making the light converting nanoparticle, and composition and optical film comprising the same
US-10649098-B2 · May 12, 2020 · US
Fluoride-based phosphors having fast decay time and light-emitting device comprising the same
US-2020102493-A1 · Apr 2, 2020 · US
LED filament lamps with white filament appearance
US-10495263-B2 · Dec 3, 2019 · US
Coated red line emitting phosphors
US-2019292448-A1 · Sep 26, 2019 · US
Light converting nanoparticle, method of making the light converting nanoparticle, and composition and optical film comprising the same
US-2019235094-A1 · Aug 1, 2019 · US
Led filament lamps with white filament appearance
US-2019128481-A1 · May 2, 2019 · US
Phosphor and light emitting device
US-2019062631-A1 · Feb 28, 2019 · US
Coated manganese doped phosphors
US-2019048258-A1 · Feb 14, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C09K11/613?
- CPC C09K11/613 is the Cooperative Patent Classification code for “with alkali or alkakine earth metals.”
- How many patents are filed under CPC C09K11/613 (with alkali or alkakine earth metals)?
- Our database includes 27 publications tagged with this CPC code.
- Is patent activity under CPC C09K11/613 growing?
- Publication counts under this code: 1 in 2024 vs 1 in 2025 (latest complete years).