Below grade waterproofing with bentonite
US-2025179309-A1 · Jun 5, 2025 · US
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Bitumen, asphalt, e.g. paraffin
Bitumen, asphalt, e.g. paraffin · 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 | C04B41/478 |
| Official title | {Bitumen, asphalt, e.g. paraffin} |
| Display label | Bitumen, asphalt, e.g. paraffin |
| Total patents | 7 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2018 | 1 |
| 2020 | 1 |
| 2021 | 1 |
| 2023 | 1 |
| 2024 | 2 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method of curing reinforced concrete
US-12091367-B2 · Sep 17, 2024 · US
Methods, materials systems, and devices for inhibiting infiltration and penetration of molten salts into solid materials
US-11891343-B2 · Feb 6, 2024 · US
Method of curing reinforced concrete
US-2023278936-A1 · Sep 7, 2023 · US
Methods, materials systems, and devices for inhibiting infiltration and penetration of molten salts into solid materials
US-2021047244-A1 · Feb 18, 2021 · US
Thermal material with high capacity and high conductivity, method for preparing same and the components that comprise same
US-2020115286-A1 · Apr 16, 2020 · US
Porous glass roofing granules
US-10100521-B2 · Oct 16, 2018 · US