Method for preparing fluorescent nanomaterial-polymer composite, and light emitting device
US-11873437-B2 · Jan 16, 2024 · US
containing germanium, tin or lead
containing germanium, tin or lead · 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 | C09K11/66 |
| Official title | containing germanium, tin or lead |
| Display label | containing germanium, tin or lead |
| Total patents | 139 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 4 |
| 2017 | 9 |
| 2018 | 10 |
| 2019 | 12 |
| 2020 | 14 |
| 2021 | 25 |
| 2022 | 13 |
| 2023 | 12 |
| 2024 | 20 |
| 2025 | 14 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Cu2-xS/PbS Core/Shell Nanocrystals
US-2021332291-A1 · Oct 28, 2021 · US
Fluoride phosphor and light-emitting device using same
US-11114589-B2 · Sep 7, 2021 · US
Light-emitting film, production method thereof, and a light emitting device including the same
US-11050033-B2 · Jun 29, 2021 · US
White light source including LED and phosphors
US-10957826-B2 · Mar 23, 2021 · US
Composition, Film, Laminate Structure, Light-Emitting Device, and Display
US-2021061829-A1 · Mar 4, 2021 · US
Application of quantum dot composite material
US-10816716-B2 · Oct 27, 2020 · US
Implanted vacancy centers with coherent optical properties
US-10734781-B2 · Aug 4, 2020 · US
Perovskite quantum dot material
US-10731075-B2 · Aug 4, 2020 · US
Ink Composition, Film, and Display
US-2020239713-A1 · Jul 30, 2020 · US
Composition, Film, Laminated Structure, Light-Emitting Device, and Display
US-2020243732-A1 · Jul 30, 2020 · US
Perovskite quantum dot material
US-2020216754-A1 · Jul 9, 2020 · US
Phosphor, method for preparing phosphor, optoelectronic component, and method for producing optoelectronic component
US-10683454-B2 · Jun 16, 2020 · US
Composition, Film, Multilayer Structure, Light Emitting Device and Display
US-2020181484-A1 · Jun 11, 2020 · US
Film, Production Method for Composition, Production Method for Cured Product, and Production Method for Film
US-2020165397-A1 · May 28, 2020 · US
Fluoride phosphor and light-emitting device using same
US-2020135983-A1 · Apr 30, 2020 · US
Method for making a perovskite quantum dot material
US-10633584-B2 · Apr 28, 2020 · US
Phosphor, light emitting device, and method for producing phosphor
US-10611956-B2 · Apr 7, 2020 · US
Nanoparticle structure and process for manufacture
US-10604407-B2 · Mar 31, 2020 · US
Nanoparticle structure and process for manufacture
US-10544042-B2 · Jan 28, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C09K11/66?
- CPC C09K11/66 is the Cooperative Patent Classification code for “containing germanium, tin or lead.”
- How many patents are filed under CPC C09K11/66 (containing germanium, tin or lead)?
- Our database includes 139 publications tagged with this CPC code.
- Is patent activity under CPC C09K11/66 growing?
- Publication counts under this code: 20 in 2024 vs 14 in 2025 (latest complete years).