Additives for cements comprising Ye'elimite
US-12319627-B2 · Jun 3, 2025 · US
Acids · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C04B22/141 |
| Official title | {Acids} |
| Display label | Acids |
| Total patents | 13 |
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 |
| 2018 | 2 |
| 2019 | 1 |
| 2020 | 1 |
| 2021 | 3 |
| 2022 | 1 |
| 2024 | 1 |
| 2025 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-12319627-B2 · Jun 3, 2025 · US
US-2024286958-A1 · Aug 29, 2024 · US
US-2022162123-A1 · May 26, 2022 · US
US-11161783-B2 · Nov 2, 2021 · US
US-2021323880-A1 · Oct 21, 2021 · US
US-11021398-B2 · Jun 1, 2021 · US
US-2020079691-A1 · Mar 12, 2020 · US
US-10479728-B2 · Nov 19, 2019 · US
US-10077211-B2 · Sep 18, 2018 · US
US-2018141863-A1 · May 24, 2018 · US
US-2016236979-A1 · Aug 18, 2016 · US
US-9139472-B2 · Sep 22, 2015 · US
US-8936773-B2 · Jan 20, 2015 · US