Coating Approach to Prevent Agglomeration of Spherical Lightweight Aggregate (LWA) During Sintering
US-2025091945-A1 · Mar 20, 2025 · US
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Combustion residues, e.g. fly ash, incineration waste
Combustion residues, e.g. fly ash, incineration waste · 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 | C04B33/135 |
| Official title | Combustion residues, e.g. fly ash, incineration waste |
| Display label | Combustion residues, e.g. fly ash, incineration waste |
| Total patents | 9 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2018 | 2 |
| 2020 | 1 |
| 2021 | 2 |
| 2024 | 3 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Phase inversion pore-forming agent and pore-forming method for fly ash-based ceramic flat membrane support
US-11987530-B1 · May 21, 2024 · US
Building materials and components and methods of making the same
US-2024150246-A1 · May 9, 2024 · US
Building materials and components and methods of making the same
US-11891337-B2 · Feb 6, 2024 · US
Particle-stabilized foams using sustainable materials
US-2021130244-A1 · May 6, 2021 · US
Building materials and components and methods of making the same
US-2021061714-A1 · Mar 4, 2021 · US
Heat-dissipating ceramic foam containing carbonized cellulose particles and method for producing the same
US-10584071-B2 · Mar 10, 2020 · US
Heat-dissipating ceramic foam containing carbonized cellulose particles and method for producing the same
US-2018282232-A1 · Oct 4, 2018 · US
Binder materials for use in preparation of ceramic particles
US-2018244576-A1 · Aug 30, 2018 · US