Method of processing exhaust gas from a cement plant
US-2025263336-A1 · Aug 21, 2025 · US
Special arrangements for treating part or all of the cement kiln dust · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C04B7/436 |
| Official title | {Special arrangements for treating part or all of the cement kiln dust} |
| Display label | Special arrangements for treating part or all of the cement kiln dust |
| Total patents | 12 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 3 |
| 2017 | 1 |
| 2018 | 2 |
| 2020 | 1 |
| 2023 | 1 |
| 2024 | 1 |
| 2025 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-2025263336-A1 · Aug 21, 2025 · US
US-12145895-B2 · Nov 19, 2024 · US
US-2023194173-A1 · Jun 22, 2023 · US
US-10633283-B2 · Apr 28, 2020 · US
US-2018148374-A1 · May 31, 2018 · US
US-9855527-B2 · Jan 2, 2018 · US
US-9695086-B2 · Jul 4, 2017 · US
US-2016279569-A1 · Sep 29, 2016 · US
US-9371252-B2 · Jun 21, 2016 · US
US-9260314-B2 · Feb 16, 2016 · US
US-9067827-B2 · Jun 30, 2015 · US
US-2015037745-A1 · Feb 5, 2015 · US