Glass melting process with very low to zero-co2 emission
US-2025353773-A1 · Nov 20, 2025 · US
Preheating
Preheating · 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 | C03B3/023 |
| Official title | {Preheating} |
| Display label | Preheating |
| Total patents | 61 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 8 |
| 2016 | 4 |
| 2017 | 6 |
| 2018 | 12 |
| 2019 | 4 |
| 2020 | 6 |
| 2021 | 3 |
| 2022 | 3 |
| 2023 | 2 |
| 2024 | 4 |
| 2025 | 8 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Glass melting process with very low to zero-co2 emission
US-2025353774-A1 · Nov 20, 2025 · US
Glass melting process with very low to zero-co2 emission
US-2025346517-A1 · Nov 13, 2025 · US
Furnace system
US-2025327573-A1 · Oct 23, 2025 · US
Method for producing mixed raw material, method for producing molten glass, method for producing glass article, apparatus for producing molten glass, and apparatus for producing glass article
US-12338153-B2 · Jun 24, 2025 · US
System for preheating glass melting furnace batch materials
US-12252430-B2 · Mar 18, 2025 · US
Glass melting process with very low to zero-co2 emission
US-2025011213-A1 · Jan 9, 2025 · US
Method and System for Heat Recovery in an Oxy-Fuel Fired Glass Furnace
US-2025011214-A1 · Jan 9, 2025 · US
Glass melting process with very low to zero-co2 emission
US-2024425402-A1 · Dec 26, 2024 · US
Glass melting process with very low to zero-co2 emission
US-2024425401-A1 · Dec 26, 2024 · US
Hydrogen-fueled submerged combustion melter and glass melting system including the same
US-2024051861-A1 · Feb 15, 2024 · US
Method and apparatus for supplying pre-heated particulate mineral material for making a mineral melt
US-11878930-B2 · Jan 23, 2024 · US
System for preheating glass melting furnace batch materials
US-11795091-B2 · Oct 24, 2023 · US
Method of making mineral fibres
US-2023075323-A1 · Mar 9, 2023 · US
System for preheating glass melting furnace batch materials
US-2022274859-A1 · Sep 1, 2022 · US
Method for producing mixed raw material, method for producing molten glass, method for producing glass article, apparatus for producing molten glass, and apparatus for producing glass article
US-2022242770-A1 · Aug 4, 2022 · US
System for preheating glass melting furnace batch materials
US-11358896-B2 · Jun 14, 2022 · US
Method and apparatus for supplying pre-heated particulate mineral material for making a mineral melt
US-2021403360-A1 · Dec 30, 2021 · US
Method and an apparatus for making a mineral melt
US-11034606-B2 · Jun 15, 2021 · US
Preparation of raw materials for glass furnace
US-2021155521-A1 · May 27, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C03B3/023?
- CPC C03B3/023 is the Cooperative Patent Classification code for “Preheating.”
- How many patents are filed under CPC C03B3/023 (Preheating)?
- Our database includes 61 publications tagged with this CPC code.
- Is patent activity under CPC C03B3/023 growing?
- Publication counts under this code: 4 in 2024 vs 8 in 2025 (latest complete years).