Color conversion particle
US-12565612-B2 · Mar 3, 2026 · US
containing refractory metals
containing refractory 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 | C09K11/67 |
| Official title | containing refractory metals |
| Display label | containing refractory metals |
| Total patents | 37 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 2 |
| 2017 | 6 |
| 2018 | 1 |
| 2020 | 6 |
| 2021 | 3 |
| 2022 | 1 |
| 2023 | 5 |
| 2024 | 8 |
| 2025 | 2 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Color conversion particle
US-12565615-B2 · Mar 3, 2026 · US
Stabilized zirconia sintered body and zirconia powder
US-12358841-B2 · Jul 15, 2025 · US
Composite film, preparation method thereof and light-emitting device
US-2025212594-A1 · Jun 26, 2025 · US
Color enhancement utilizing up converters and/or down converters
US-2024148571-A1 · May 9, 2024 · US
Nitride-based mxene light-emitting quantum dot and method of manufacturing the same
US-2024124772-A1 · Apr 18, 2024 · US
Stabilized zirconia sintered body and zirconia powder
US-2024101482-A1 · Mar 28, 2024 · US
Color enhancement utilizing up converters and/or down converters
US-11938011-B2 · Mar 26, 2024 · US
Oxide fluorescent material, light emitting device, and method for producing oxide fluorescent material
US-2024052240-A1 · Feb 15, 2024 · US
Color conversion particle
US-2024034926-A1 · Feb 1, 2024 · US
Europium activating beta-type sialon phosphor, and light-emitting device
US-2024026221-A1 · Jan 25, 2024 · US
Color conversion particle
US-2024002720-A1 · Jan 4, 2024 · US
Method for producing powder containing zirconia particles and fluorescent agent
US-11802237-B2 · Oct 31, 2023 · US
Fluoride phosphor, complex, and light-emitting device
US-2023313035-A1 · Oct 5, 2023 · US
Method for producing inorganic fluoride luminescent material
US-2023220275-A1 · Jul 13, 2023 · US
Multifunctional multi-piezo material having piezoelectric properties and mechanoluminescence properties, and multifunctional piezoelectric body, mems device, robot, strain/fatigue/damage diagnosis device, and non-destructive inspection method using same
US-2023200253-A1 · Jun 22, 2023 · US
Production method of inorganic fluoride luminescent material
US-2023142294-A1 · May 11, 2023 · US
Method for producing zirconia particle-containing powder
US-11479510-B2 · Oct 25, 2022 · US
Light emitting device package and light unit
US-RE48858-E · Dec 21, 2021 · US
Fluoride phosphor and light-emitting device using same
US-11114589-B2 · Sep 7, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C09K11/67?
- CPC C09K11/67 is the Cooperative Patent Classification code for “containing refractory metals.”
- How many patents are filed under CPC C09K11/67 (containing refractory metals)?
- Our database includes 37 publications tagged with this CPC code.
- Is patent activity under CPC C09K11/67 growing?
- Publication counts under this code: 8 in 2024 vs 2 in 2025 (latest complete years).