Utilization of petroleum coke in cementitious materials
US-2025154062-A1 · May 15, 2025 · US
This page is not indexed by search engines while we improve data quality.
Wastes from oil or other wells, e.g. drilling mud
Wastes from oil or other wells, e.g. drilling mud · 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 | C04B18/049 |
| Official title | {Wastes from oil or other wells, e.g. drilling mud} |
| Display label | Wastes from oil or other wells, e.g. drilling mud |
| Total patents | 13 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 1 |
| 2017 | 1 |
| 2018 | 1 |
| 2019 | 1 |
| 2020 | 1 |
| 2021 | 1 |
| 2023 | 1 |
| 2024 | 3 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Waste to energy ash and engineered aggregate in road construction
US-12091827-B2 · Sep 17, 2024 · US
Waste to energy ash and engineered aggregate in road construction
US-2024084521-A1 · Mar 14, 2024 · US
Waste to energy ash and engineered aggregate in road construction
US-11859355-B2 · Jan 2, 2024 · US
Waste to energy ash and engineered aggregate in road construction
US-2023033496-A1 · Feb 2, 2023 · US
Well cementation working solution prepared from red mud, slag and waste drilling fluids
US-10975284-B2 · Apr 13, 2021 · US
Well cementation working solution prepared from red mud, slag and waste drilling fluids
US-2020071594-A1 · Mar 5, 2020 · US
Bitumen extraction process
US-10519381-B2 · Dec 31, 2019 · US
Treated oil sand waste for use in cementitious materials for geotechnical applications
US-2018265405-A1 · Sep 20, 2018 · US
Waste to energy ash and engineered aggregate in road construction
US-2017370050-A1 · Dec 28, 2017 · US
Treatment of tailings streams
US-9481799-B2 · Nov 1, 2016 · US
Improved bitumen extraction process
US-2015299580-A1 · Oct 22, 2015 · US
Treatment of tailings streams
US-9011972-B2 · Apr 21, 2015 · US