Quantum dot, quantum dot layer, light-emitting element, and solar cell
US-2024158691-A1 · May 16, 2024 · US
with alkali or alkaline earth metals
with alkali 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 | C09K11/616 |
| Official title | {with alkali or alkaline earth metals} |
| Display label | with alkali or alkaline earth metals |
| Total patents | 302 |
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 | 20 |
| 2016 | 24 |
| 2017 | 34 |
| 2018 | 36 |
| 2019 | 41 |
| 2020 | 33 |
| 2021 | 35 |
| 2022 | 24 |
| 2023 | 27 |
| 2024 | 16 |
| 2025 | 9 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Radiographic flat panel detector having a ferromagnetic layer and the method of production thereof
US-9831007-B2 · Nov 28, 2017 · US
Fluorescent composition, a light emitting element package comprising same, and an illuminating device
US-2017335186-A1 · Nov 23, 2017 · US
Light emitting diode package and manufacturing method thereof
US-9741907-B2 · Aug 22, 2017 · US
Color stable red-emitting phosphors
US-2017145304-A1 · May 25, 2017 · US
Fluoride phosphor, fabricating method thereof, and light-emitting apparatus and backlight module employing the same
US-2017137707-A1 · May 18, 2017 · US
Fluoride fluorescent material and method for producing the same as well as light emitting device using the same
US-9650563-B2 · May 16, 2017 · US
Quantum dots, production methods thereof, and electronic devices including the same
US-2017121598-A1 · May 4, 2017 · US
Method for treating Mn-activated complex fluoride phosphor
US-9611425-B2 · Apr 4, 2017 · US
Optical connector apparatus
US-9594218-B2 · Mar 14, 2017 · US
Light emitting device and image display apparatus
US-2017062668-A1 · Mar 2, 2017 · US
Red-emitting phosphors and associated devices
US-9567516-B2 · Feb 14, 2017 · US
Scintillators having the k2ptcl6 crystal structure
US-2017038483-A1 · Feb 9, 2017 · US
Radiographic flat panel detector having a ferromagnetic layer and the method of production thereof
US-2017040078-A1 · Feb 9, 2017 · US
Fluoride fluorescent material and light emitting device using the same
US-9564558-B2 · Feb 7, 2017 · US
Semiconductor light emitting device, backlight, color image display device and phosphor to be used for them
US-9541238-B2 · Jan 10, 2017 · US
Moisture-resistant phosphor compositions and associate methods
US-2016376499-A1 · Dec 29, 2016 · US
Red-emitting phosphors, associated processes and devices
US-9512357-B2 · Dec 6, 2016 · US
Method for producing and method for processing complex fluoride phosphor
US-2016347998-A1 · Dec 1, 2016 · US
Phosphor, manufacturing method thereof, and light-emitting device using the phosphor
US-2016340577-A1 · Nov 24, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C09K11/616?
- CPC C09K11/616 is the Cooperative Patent Classification code for “with alkali or alkaline earth metals.”
- How many patents are filed under CPC C09K11/616 (with alkali or alkaline earth metals)?
- Our database includes 302 publications tagged with this CPC code.
- Is patent activity under CPC C09K11/616 growing?
- Publication counts under this code: 16 in 2024 vs 9 in 2025 (latest complete years).