Insulating ceramic panels and methods of forming insulating ceramic panels
US-2026092016-A1 · Apr 2, 2026 · US
Fuel ashes, e.g. fly ash
Fuel ashes, e.g. fly ash · 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 | C04B33/1352 |
| Official title | {Fuel ashes, e.g. fly ash} |
| Display label | Fuel ashes, e.g. fly ash |
| Total patents | 25 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 3 |
| 2017 | 3 |
| 2018 | 1 |
| 2019 | 3 |
| 2020 | 2 |
| 2022 | 3 |
| 2023 | 1 |
| 2024 | 2 |
| 2025 | 2 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Impurity removal method of silicate solid waste and its application
US-12589420-B2 · Mar 31, 2026 · US
Insulating ceramic panels and methods of forming insulating ceramic panels
US-12509403-B2 · Dec 30, 2025 · US
Coating Approach to Prevent Agglomeration of Spherical Lightweight Aggregate (LWA) During Sintering
US-2025091945-A1 · Mar 20, 2025 · US
Preparation method of fly ash-based ceramic membrane support
US-12071377-B2 · Aug 27, 2024 · US
Preparation Method of Fly Ash-Based Ceramic Membrane Support
US-2024217879-A1 · Jul 4, 2024 · US
Impurity Removal Method of Silicate Solid Waste and Its Application
US-2023211392-A1 · Jul 6, 2023 · US
Insulating ceramic panels and methods of forming insulating ceramic panels
US-2022267218-A1 · Aug 25, 2022 · US
Seamless, and/or graded transition from sintered alternative-binders-based impermeable concrete to glass for architectural and industrial applications
US-11414345-B2 · Aug 16, 2022 · US
Method of making waterproof magnesium oxychloride refractory brick by fly ash from municipal solid waste incineration
US-11279655-B2 · Mar 22, 2022 · US
Method of making waterproof magnesium oxychloride refractory brick by fly ash from municipal solid waste incineration
US-2020399182-A1 · Dec 24, 2020 · US
Method for recovering valuable metals and simultaneously preparing ceramsite by roasting cyanide tailing
US-10626053-B2 · Apr 21, 2020 · US
A method for recovering valuable metals and simultaneously preparing ceramsite by roasting cyanide tailing
US-2019382312-A1 · Dec 19, 2019 · US
Light weight proppant with improved strength and methods of making same
US-10233386-B2 · Mar 19, 2019 · US
Seamless and impermeable joints resulting in a functionally graded material: transitioning from glass to geopolymer mortar
US-2019047910-A1 · Feb 14, 2019 · US
Ultra-light ultra-strong proppants
US-10017687-B2 · Jul 10, 2018 · US
Self-toughened high-strength proppant and methods of making same
US-9670763-B2 · Jun 6, 2017 · US
Fly ash processing and manufacture of articles incorporating fly ash compositions
US-2017073274-A1 · Mar 16, 2017 · US
Proppant bead forming methods
US-2017066962-A1 · Mar 9, 2017 · US
Fly ash processing and manufacture of articles incorporating fly ash compositions
US-9512038-B2 · Dec 6, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C04B33/1352?
- CPC C04B33/1352 is the Cooperative Patent Classification code for “Fuel ashes, e.g. fly ash.”
- How many patents are filed under CPC C04B33/1352 (Fuel ashes, e.g. fly ash)?
- Our database includes 25 publications tagged with this CPC code.
- Is patent activity under CPC C04B33/1352 growing?
- Publication counts under this code: 2 in 2024 vs 2 in 2025 (latest complete years).