Method for preparing all-solid-state photonic crystal fiber preforms by extrusion
US-11530156-B2 · Dec 20, 2022 · US
Silica-free oxide glass compositions
Silica-free oxide glass compositions · 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 | C03C3/12 |
| Official title | Silica-free oxide glass compositions |
| Display label | Silica-free oxide glass compositions |
| Total patents | 73 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 10 |
| 2017 | 8 |
| 2018 | 8 |
| 2019 | 10 |
| 2020 | 4 |
| 2021 | 4 |
| 2022 | 11 |
| 2023 | 4 |
| 2024 | 2 |
| 2025 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Enhanced ion exchange methods
US-2022380252-A1 · Dec 1, 2022 · US
Glass-containing pseudo-reference electrode for use in ion-selective electrode sensors and ion selective field-effect transistors
US-2022332631-A1 · Oct 20, 2022 · US
Enhanced ion exchange methods
US-11447417-B2 · Sep 20, 2022 · US
Method for searching for structural genes of glass
US-2022246250-A1 · Aug 4, 2022 · US
Lithium ion conductive material and method for producing the same
US-2022181679-A1 · Jun 9, 2022 · US
Decorative glass article
US-2022169558-A1 · Jun 2, 2022 · US
Optical glass, optical element including optical glass, and optical apparatus
US-2022119302-A1 · Apr 21, 2022 · US
Optical glass, optical element composed of optical glass, optical system interchangeable lens, and optical device
US-2022064051-A1 · Mar 3, 2022 · US
Optical glass, optical element, optical instrument, and method for manufacturing optical glass
US-11254602-B2 · Feb 22, 2022 · US
Optical glass, optical element composed of optical glass, optical system interchangeable lens, and optical device
US-11203548-B2 · Dec 21, 2021 · US
Single-band upconversion luminescent material and method for producing the same
US-10927296-B2 · Feb 23, 2021 · US
Lead-free glass composition, glass composite material, glass paste, sealing structure, electrical/electronic component and coated component
US-10913680-B2 · Feb 9, 2021 · US
Ion-conducting glass ceramic having garnet-like crystal structure
US-10899648-B2 · Jan 26, 2021 · US
Method for Preparing All-Solid-State Photonic Crystal Fiber Preforms by Extrusion
US-2020354260-A1 · Nov 12, 2020 · US
Optical glass, optical element composed of optical glass, optical system interchangeable lens, and optical device
US-2020223739-A1 · Jul 16, 2020 · US
Ion-conducting glass ceramic having garnet-like crystal structure
US-2020144660-A1 · May 7, 2020 · US
Enhanced ion exchange methods
US-2020102244-A1 · Apr 2, 2020 · US
Process for producing polymerizable composition for optical material and polymerizable composition for optical material
US-10519060-B2 · Dec 31, 2019 · US
Ion-conducting glass ceramic having garnet-like crystal structure
US-10483585-B2 · Nov 19, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C03C3/12?
- CPC C03C3/12 is the Cooperative Patent Classification code for “Silica-free oxide glass compositions.”
- How many patents are filed under CPC C03C3/12 (Silica-free oxide glass compositions)?
- Our database includes 73 publications tagged with this CPC code.
- Is patent activity under CPC C03C3/12 growing?
- Publication counts under this code: 2 in 2024 vs 6 in 2025 (latest complete years).