Glass or glass ceramic substrate provided with a decorative coating and method for producing same
US-2019241467-A1 · Aug 8, 2019 · US
containing alkali metals
containing alkali 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 | C03C2201/50 |
| Official title | containing alkali metals |
| Display label | containing alkali metals |
| Total patents | 154 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 13 |
| 2016 | 15 |
| 2017 | 16 |
| 2018 | 14 |
| 2019 | 14 |
| 2020 | 16 |
| 2021 | 11 |
| 2022 | 18 |
| 2023 | 16 |
| 2024 | 10 |
| 2025 | 8 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Optical fiber preform
US-2019016630-A1 · Jan 17, 2019 · US
Preparation of carbon-doped silicon dioxide granulate as an intermediate in the preparation of quartz glass
US-2018370835-A1 · Dec 27, 2018 · US
Method for manufacturing optical fiber preform, method for manufacturing optical fiber, and method for doping silica glass
US-2018370841-A1 · Dec 27, 2018 · US
Optical fiber
US-2018362392-A1 · Dec 20, 2018 · US
Optical fiber preform
US-10155687-B2 · Dec 18, 2018 · US
Coupled multi-core optical fiber
US-2018299613-A1 · Oct 18, 2018 · US
Optical fiber with low loss and nanoscale structurally homogeneous core
US-2018251397-A1 · Sep 6, 2018 · US
Coupled multi-core optical fiber
US-10031283-B2 · Jul 24, 2018 · US
Optical fiber
US-10031282-B2 · Jul 24, 2018 · US
Bismuth borate glass encapsulant for LED phosphors
US-10023492-B2 · Jul 17, 2018 · US
Laminated glass with thin inner pane and soundproofing thermoplastic intermediate layer
US-2018194112-A1 · Jul 12, 2018 · US
Method of making an optical fiber containing an alkali metal in the core
US-9932265-B2 · Apr 3, 2018 · US
Chemically strengthened glass
US-2018079684-A1 · Mar 22, 2018 · US
Optical fiber with low loss and nanoscale structurally homogeneous core
US-9919955-B2 · Mar 20, 2018 · US
Optical fiber
US-9910216-B2 · Mar 6, 2018 · US
Optical fiber
US-2017371096-A1 · Dec 28, 2017 · US
Glass, optical glass, glass raw material for press molding, and optical element
US-9828280-B2 · Nov 28, 2017 · US
Optical fiber
US-9817184-B2 · Nov 14, 2017 · US
Optical fiber
US-2017305781-A1 · Oct 26, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C03C2201/50?
- CPC C03C2201/50 is the Cooperative Patent Classification code for “containing alkali metals.”
- How many patents are filed under CPC C03C2201/50 (containing alkali metals)?
- Our database includes 154 publications tagged with this CPC code.
- Is patent activity under CPC C03C2201/50 growing?
- Publication counts under this code: 10 in 2024 vs 8 in 2025 (latest complete years).