Glass with modified surface regions and methods and apparatuses for forming the same via electro-thermal poling and field-assisted ion exchange
US-2026055024-A1 · Feb 26, 2026 · US
under application of an electrical potential difference
under application of an electrical potential difference · 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 | C03C21/003 |
| Official title | {under application of an electrical potential difference} |
| Display label | under application of an electrical potential difference |
| Total patents | 31 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2017 | 6 |
| 2018 | 1 |
| 2019 | 1 |
| 2020 | 3 |
| 2021 | 2 |
| 2022 | 3 |
| 2023 | 4 |
| 2024 | 4 |
| 2025 | 6 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Glass with modified surface regions and methods and apparatuses for forming the same via electro-thermal poling and field-assisted ion exchange
US-12486198-B2 · Dec 2, 2025 · US
Graphene doping by thermal poling
US-2025296878-A1 · Sep 25, 2025 · US
Chemically tempered crystallized glass, and crystallized glass to be chemically tempered
US-2025289751-A1 · Sep 18, 2025 · US
Graphene doping by thermal poling
US-12351510-B2 · Jul 8, 2025 · US
Strengthened glass manufacturing apparatus and strengthened glass manufacturing method using the same
US-12215055-B2 · Feb 4, 2025 · US
Electronic device having selectively strengthened glass
US-2025019298-A1 · Jan 16, 2025 · US
LOW-LOSS WAVEGUIDES FORMED IN HIGH-TRANSMISSION GLASS USING Ag-Na ION EXCHANGE
US-2024317633-A1 · Sep 26, 2024 · US
Apparatus for manufacturing glass article and method for manufacturing glass article using the same
US-2024254039-A1 · Aug 1, 2024 · US
Electronic device having selectively strengthened glass
US-12043571-B2 · Jul 23, 2024 · US
Low-loss waveguides formed in high-transmission glass using ag-na ion exchange
US-12030809-B2 · Jul 9, 2024 · US
Glass article and method of manufacturing the same
US-2023382788-A1 · Nov 30, 2023 · US
Glass article and method of manufacturing the same
US-11760688-B2 · Sep 19, 2023 · US
Electronic device having selectively strengthened glass
US-2023107600-A1 · Apr 6, 2023 · US
Glass with modified surface regions and methods and apparatuses for forming the same via electro-thermal poling and field-assisted ion exchange
US-2023024221-A1 · Jan 26, 2023 · US
Electronic device having selectively strengthened glass
US-11518708-B2 · Dec 6, 2022 · US
Asymmetric chemical strengthening
US-11247937-B2 · Feb 15, 2022 · US
Strengthened Glass Manufacturing Apparatus and Strengthened Glass Manufacturing Method Using the Same
US-2022002193-A1 · Jan 6, 2022 · US
Graphene doping by thermal poling
US-2021347689-A1 · Nov 11, 2021 · US
Glass article and method of manufacturing the same
US-2021206692-A1 · Jul 8, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C03C21/003?
- CPC C03C21/003 is the Cooperative Patent Classification code for “under application of an electrical potential difference.”
- How many patents are filed under CPC C03C21/003 (under application of an electrical potential difference)?
- Our database includes 31 publications tagged with this CPC code.
- Is patent activity under CPC C03C21/003 growing?
- Publication counts under this code: 4 in 2024 vs 6 in 2025 (latest complete years).