Recycled concrete waste powder and aggregates with heavy oil fuel ash for producing a green flowable backfill material
US-12304863-B2 · May 20, 2025 · US
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from liquid fuels, e.g. oil
from liquid fuels, e.g. oil · 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 | C04B18/087 |
| Official title | {from liquid fuels, e.g. oil} |
| Display label | from liquid fuels, e.g. oil |
| Total patents | 24 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 2 |
| 2017 | 2 |
| 2020 | 1 |
| 2021 | 7 |
| 2022 | 3 |
| 2023 | 4 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Mortar composition containing iron oxide
US-11691916-B2 · Jul 4, 2023 · US
Aluminum hydroxide enhanced mortar composition
US-11685691-B2 · Jun 27, 2023 · US
Tinted mortar composition containing fuel ash
US-11667571-B2 · Jun 6, 2023 · US
Natural material-based ash mortar composition
US-11577996-B2 · Feb 14, 2023 · US
Method of making an ash-based mortar composition
US-11492293-B2 · Nov 8, 2022 · US
Recycled concrete waste powder & aggregates with heavy oil fuel ash for producing a green flowable backfill material
US-2022348498-A1 · Nov 3, 2022 · US
Utilization of heavy oil fly ash to produce controlled low strength material for backfilling applications
US-11434168-B2 · Sep 6, 2022 · US
Palm oil fuel ash based mortar compositions
US-2021395147-A1 · Dec 23, 2021 · US
Aluminum hydroxide enhanced mortar composition
US-2021387914-A1 · Dec 16, 2021 · US
Mortar composition containing iron oxide
US-2021380478-A1 · Dec 9, 2021 · US
Tinted mortar composition containing fuel ash
US-2021380479-A1 · Dec 9, 2021 · US
Natural material-based ash mortar composition
US-2021363059-A1 · Nov 25, 2021 · US
Palm oil fuel ash based mortar compositions
US-11168027-B2 · Nov 9, 2021 · US
Palm oil fuel ash based mortar compositions
US-2021024416-A1 · Jan 28, 2021 · US
Utilization of heavy oil fly ash to produce controlled low strength material for backfilling applications
US-2020290929-A1 · Sep 17, 2020 · US
Foam concrete with oil ash
US-9796624-B1 · Oct 24, 2017 · US
Structural lightweight concrete with superior thermal insulation
US-2017283319-A1 · Oct 5, 2017 · US
Utilization of heavy oil ash to produce self-consolidated concrete
US-9266776-B2 · Feb 23, 2016 · US
Heavy oil ash in roofing, damp-proofing, and water proofing applications
US-9249304-B2 · Feb 2, 2016 · US