Oil well cement composite permeation enhancement agent suitable for hydrate layer and preparation method
US-11866367-B2 · Jan 9, 2024 · US
expanded in situ, i.e. during or after mixing the mortar, concrete or artificial stone ingredients · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C04B16/085 |
| Official title | {expanded in situ, i.e. during or after mixing the mortar, concrete or artificial stone ingredients} |
| Display label | expanded in situ, i.e. during or after mixing the mortar, concrete or artificial stone ingredients |
| Total patents | 6 |
Year-over-year patent counts classified under this CPC code.
Filing activity appears stable based on the most recent years.
| Year | Patents |
|---|---|
| 2017 | 3 |
| 2020 | 1 |
| 2023 | 1 |
| 2024 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-11866367-B2 · Jan 9, 2024 · US
US-2023357080-A1 · Nov 9, 2023 · US
US-10774000-B2 · Sep 15, 2020 · US
US-2017260091-A1 · Sep 14, 2017 · US
US-2017260092-A1 · Sep 14, 2017 · US
US-2017260105-A1 · Sep 14, 2017 · US