Light-emitting device comprising organic salt bound to quantum dots and production method thereof
US-11917841-B2 · Feb 27, 2024 · US
containing beryllium, magnesium, alkali metals or alkaline earth metals
containing beryllium, magnesium, alkali metals or 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 | C09K11/55 |
| Official title | containing beryllium, magnesium, alkali metals or alkaline earth metals |
| Display label | containing beryllium, magnesium, alkali metals or alkaline earth metals |
| Total patents | 132 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 10 |
| 2016 | 9 |
| 2017 | 10 |
| 2018 | 15 |
| 2019 | 9 |
| 2020 | 13 |
| 2021 | 13 |
| 2022 | 13 |
| 2023 | 13 |
| 2024 | 11 |
| 2025 | 9 |
| 2026 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Controlling alkaline earth atoms for quantum computing and metrology applications
US-10809177-B2 · Oct 20, 2020 · US
Method of producing aluminate fluorescent material, aluminate fluorescent material, and light emitting device
US-2020318004-A1 · Oct 8, 2020 · US
Zinc nitride compound and method for producing same
US-10737947-B2 · Aug 11, 2020 · US
Infrared Fluorescent Coating Compositions
US-2020190337-A1 · Jun 18, 2020 · US
Stabilized fluoride phosphor for light emitting diode (led) applications
US-2020185572-A1 · Jun 11, 2020 · US
Stabilized fluoride phosphor for light emitting diode (LED) applications
US-10608148-B2 · Mar 31, 2020 · US
Stabilized fluoride phosphor for light emitting diode (led) applications
US-2019371973-A1 · Dec 5, 2019 · US
Light-emitting film, production method thereof, and a light emitting device including the same
US-2019326533-A1 · Oct 24, 2019 · US
Devices including green-emitting phosphors
US-2019280165-A1 · Sep 12, 2019 · US
Zinc nitride compound and method for producing same
US-2019248670-A1 · Aug 15, 2019 · US
Lutetium nitride-based phosphor and light emitting device comprising same
US-2019225882-A1 · Jul 25, 2019 · US
Wavelength converting material for a light emitting device
US-2019225881-A1 · Jul 25, 2019 · US
Zinc nitride compound and method for producing same
US-10308521-B2 · Jun 4, 2019 · US
Phosphor and light-emitting equipment using phosphor
US-2019127638-A1 · May 2, 2019 · US
Reflective articles comprising a micro-cellular structure and characterized by improved (blue) led aging performance
US-2019031850-A1 · Jan 31, 2019 · US
Zinc nitride compound and method for producing same
US-2018354791-A1 · Dec 13, 2018 · US
Red phosphor, white light emitting apparatus, display apparatus, and lighting apparatus
US-10150912-B2 · Dec 11, 2018 · US
Water-insoluble metal hydrate containing an alkali metal and preparation methods thereof
US-10144868-B2 · Dec 4, 2018 · US
Oxynitride phosphor powder and method for producing same
US-10125313-B2 · Nov 13, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C09K11/55?
- CPC C09K11/55 is the Cooperative Patent Classification code for “containing beryllium, magnesium, alkali metals or alkaline earth metals.”
- How many patents are filed under CPC C09K11/55 (containing beryllium, magnesium, alkali metals or alkaline earth metals)?
- Our database includes 132 publications tagged with this CPC code.
- Is patent activity under CPC C09K11/55 growing?
- Publication counts under this code: 11 in 2024 vs 9 in 2025 (latest complete years).