Method of producing aluminate fluorescent material, aluminate fluorescent material and light emitting device
US-11142686-B2 · Oct 12, 2021 · US
with alkaline earth metals
with alkaline 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 | C09K11/643 |
| Official title | {with alkaline earth metals} |
| Display label | with alkaline earth metals |
| Total patents | 92 |
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 | 4 |
| 2016 | 6 |
| 2017 | 8 |
| 2018 | 8 |
| 2019 | 17 |
| 2020 | 9 |
| 2021 | 14 |
| 2022 | 5 |
| 2023 | 12 |
| 2024 | 5 |
| 2025 | 1 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Green-emitting phosphors and devices thereof
US-11094856-B2 · Aug 17, 2021 · US
Phosphor and light-emitting equipment using phosphor
US-11084980-B2 · Aug 10, 2021 · US
Light emitting device
US-2021175396-A1 · Jun 10, 2021 · US
Cosmetic
US-11020331-B2 · Jun 1, 2021 · US
Light emitting device
US-10930824-B2 · Feb 23, 2021 · US
Light-emitting device
US-10903401-B2 · Jan 26, 2021 · US
Red fluorescent body and light-emitting device
US-2021009896-A1 · Jan 14, 2021 · US
Wide color gamut light-emitting element
US-2020411733-A1 · Dec 31, 2020 · US
Method of producing aluminate fluorescent material, aluminate fluorescent material, and light emitting device
US-2020318004-A1 · Oct 8, 2020 · US
Cosmetic
US-2020297598-A1 · Sep 24, 2020 · US
Green-Emitting Phosphors And Devices Thereof
US-2020287099-A1 · Sep 10, 2020 · US
Phosphor and conversion led
US-2020255731-A1 · Aug 13, 2020 · US
Phosphor and conversion led
US-2020248071-A1 · Aug 6, 2020 · US
Method of producing aluminate fluorescent material, aluminate fluorescent material, and light emitting device
US-10723945-B2 · Jul 28, 2020 · US
Green-emitting phosphors and devices thereof
US-10720554-B2 · Jul 21, 2020 · US
Phosphor, production method for same, illumination instrument, and image display device
US-10662374-B2 · May 26, 2020 · US
Mechanoluminescent material, coating containing mechanoluminescent material, mechanoluminescent substance and method for producing mechanoluminescent material
US-2019345381-A1 · Nov 14, 2019 · US
Method of producing aluminate fluorescent material, aluminate fluorescent material and light emitting device
US-2019330526-A1 · Oct 31, 2019 · US
Light emitting device
US-2019305192-A1 · Oct 3, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C09K11/643?
- CPC C09K11/643 is the Cooperative Patent Classification code for “with alkaline earth metals.”
- How many patents are filed under CPC C09K11/643 (with alkaline earth metals)?
- Our database includes 92 publications tagged with this CPC code.
- Is patent activity under CPC C09K11/643 growing?
- Publication counts under this code: 5 in 2024 vs 1 in 2025 (latest complete years).