Optical glass, optical element composed of optical glass, optical system interchangeable lens, and optical device
US-12466759-B2 · Nov 11, 2025 · US
containing rare earth metals and aluminium, e.g. Er-Al co-doped
containing rare earth metals and aluminium, e.g. Er-Al co-doped · 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 | C03C2201/36 |
| Official title | containing rare earth metals and aluminium, e.g. Er-Al co-doped |
| Display label | containing rare earth metals and aluminium, e.g. Er-Al co-doped |
| Total patents | 45 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 3 |
| 2018 | 2 |
| 2019 | 5 |
| 2020 | 5 |
| 2021 | 3 |
| 2022 | 10 |
| 2023 | 6 |
| 2024 | 3 |
| 2025 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Optical Fiber, Optical Fiber Preparation Method, and Optical Fiber Amplifier
US-2025316945-A1 · Oct 9, 2025 · US
Luminescent antibacterial glass composition and method for preparing luminescent antibacterial glass powders including the same
US-2025206656-A1 · Jun 26, 2025 · US
Phospho-alumino-silicate erbium doped fiber for extended l-band amplification
US-2025128982-A1 · Apr 24, 2025 · US
Glass composition, glass article and method of making it
US-2025051217-A1 · Feb 13, 2025 · US
Radiation-resistant laser optical fiber preform core rod and preparation method therefor
US-12001052-B2 · Jun 4, 2024 · US
Colored glasses with improved tempering capabilities
US-2024092685-A1 · Mar 21, 2024 · US
Fluorescent glass ceramics and glasses with europium content
US-11905207-B2 · Feb 20, 2024 · US
Colored glasses with improved tempering capabilities
US-11845692-B2 · Dec 19, 2023 · US
Glass or glass ceramic substrate provided with a decorative coating and method for producing same
US-11713277-B2 · Aug 1, 2023 · US
Manufacturing method for optical fiber and manufacturing apparatus for optical fiber
US-11667560-B2 · Jun 6, 2023 · US
Tubular member for exhaust gas treatment device and exhaust gas treatment device using the tubular member, and method of manufacturing tubular member for exhaust gas treatment device
US-11661875-B2 · May 30, 2023 · US
Glasses having high fracture toughness
US-2023056119-A1 · Feb 23, 2023 · US
Colored glasses with improved tempering capabilities
US-2023041932-A1 · Feb 9, 2023 · US
Laser cooling of silica glass
US-2022371946-A1 · Nov 24, 2022 · US
Colored glasses with improved tempering capabilities
US-11492286-B2 · Nov 8, 2022 · US
Glasses having high fracture toughness
US-11485674-B2 · Nov 1, 2022 · US
Radiation-resistant laser optical fiber preform core rod and preparation method therefor
US-2022342147-A1 · Oct 27, 2022 · US
Fluorescent glass ceramics and glasses with europium content
US-11440834-B2 · Sep 13, 2022 · US
Tubular member for exhaust gas treatment device and exhaust gas treatment device using the tubular member, and method of manufacturing tubular member for exhaust gas treatment device
US-2022275743-A1 · Sep 1, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C03C2201/36?
- CPC C03C2201/36 is the Cooperative Patent Classification code for “containing rare earth metals and aluminium, e.g. Er-Al co-doped.”
- How many patents are filed under CPC C03C2201/36 (containing rare earth metals and aluminium, e.g. Er-Al co-doped)?
- Our database includes 45 publications tagged with this CPC code.
- Is patent activity under CPC C03C2201/36 growing?
- Publication counts under this code: 3 in 2024 vs 5 in 2025 (latest complete years).