System and method for preparing sulphoaluminate cement from solar energy stored heat dried sludge
US-12583790-B2 · Mar 24, 2026 · US
Integrated combined plants or devices, e.g. combined foundry and concrete plant
Integrated combined plants or devices, e.g. combined foundry and concrete plant · 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 | C04B2290/20 |
| Official title | Integrated combined plants or devices, e.g. combined foundry and concrete plant |
| Display label | Integrated combined plants or devices, e.g. combined foundry and concrete plant |
| Total patents | 50 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 14 |
| 2017 | 5 |
| 2018 | 3 |
| 2019 | 2 |
| 2020 | 3 |
| 2021 | 1 |
| 2022 | 4 |
| 2023 | 3 |
| 2024 | 5 |
| 2025 | 4 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Negative-carbon cement (nc2) production
US-2025270137-A1 · Aug 28, 2025 · US
Reaction schemes involving acids and bases; reactors comprising spatially varying chemical composition gradients; and associated systems and methods
US-12330989-B2 · Jun 17, 2025 · US
Reaction schemes involving acids and bases; reactors comprising spatially varying chemical composition gradients; and associated systems and methods
US-2025100927-A1 · Mar 27, 2025 · US
Reaction schemes involving acids and bases; reactors comprising spatially varying chemical composition gradients; and associated systems and methods
US-12252442-B2 · Mar 18, 2025 · US
System and method for preparing sulphoaluminate cement from solar energy stored heat dried sludge
US-2024246857-A1 · Jul 25, 2024 · US
Co-production of hydrogen, carbon, electricity, and concrete with carbon dioxide capture
US-2024194916-A1 · Jun 13, 2024 · US
Method and facility for producing material containing hydrated cement
US-12005459-B2 · Jun 11, 2024 · US
Reaction schemes involving acids and bases; reactors comprising spatially varying chemical composition gradients; and associated systems and methods
US-2024150235-A1 · May 9, 2024 · US
Reaction schemes involving acids and bases; reactors comprising spatially varying chemical composition gradients; and associated systems and methods
US-2024132400-A1 · Apr 25, 2024 · US
Closed loop control with camera detection of pebble size of lime particles to ameliorate lime kiln ringing and improve uptime and operating efficiency
US-11718559-B2 · Aug 8, 2023 · US
Organic sludge treatment device and treatment method
US-11591246-B2 · Feb 28, 2023 · US
Method of producing cement clinker and a second calcined material
US-2023002277-A1 · Jan 5, 2023 · US
Method of processing exhaust gas
US-2022411707-A1 · Dec 29, 2022 · US
Method for preparing iron alloy and cement material
US-11459272-B2 · Oct 4, 2022 · US
Reaction schemes involving acids and bases; reactors comprising spatially varying chemical composition gradients; and associated systems and methods
US-2022064063-A1 · Mar 3, 2022 · US
Method and facility for producing material containing hydrated cement
US-2022032316-A1 · Feb 3, 2022 · US
Organic sludge treatment device and treatment method
US-2021009455-A1 · Jan 14, 2021 · US
CLOSED LOOP CONTROL WITH CAMERA DETECTION OF PEBBLE SIZE OF LIME PARTICLES TO AMELIORATE LIME KILN RINGING and IMPROVE UPTIME and OPERATING EFFICIENCY
US-2020290924-A1 · Sep 17, 2020 · US
Method for preparing iron alloy and cement material
US-2020223752-A1 · Jul 16, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C04B2290/20?
- CPC C04B2290/20 is the Cooperative Patent Classification code for “Integrated combined plants or devices, e.g. combined foundry and concrete plant.”
- How many patents are filed under CPC C04B2290/20 (Integrated combined plants or devices, e.g. combined foundry and concrete plant)?
- Our database includes 50 publications tagged with this CPC code.
- Is patent activity under CPC C04B2290/20 growing?
- Publication counts under this code: 5 in 2024 vs 4 in 2025 (latest complete years).