Mitigating adverse effects of ettringite in mineral binder compositions
US-2026055031-A1 · Feb 26, 2026 · US
Polyamides
Polyamides · 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 | C04B24/287 |
| Official title | {Polyamides} |
| Display label | Polyamides |
| Total patents | 51 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 4 |
| 2017 | 1 |
| 2018 | 6 |
| 2019 | 12 |
| 2020 | 15 |
| 2021 | 6 |
| 2022 | 3 |
| 2024 | 1 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Wellbore cement structures and related compositions
US-2025074824-A1 · Mar 6, 2025 · US
Dry grinding of steel making slag, ground steel making slag, and its use in construction materials
US-2024174570-A1 · May 30, 2024 · US
Methods of making and using a high temperature cementitious composition
US-11535789-B1 · Dec 27, 2022 · US
Material design for the encapsulation of additives and release
US-11292955-B2 · Apr 5, 2022 · US
Wellbore cement having polymer capsule shells
US-11236582-B2 · Feb 1, 2022 · US
Drilling fluids and methods of use
US-11124686-B2 · Sep 21, 2021 · US
Additive for oil well cement and cement slurry using said additive for oil well cement
US-11046880-B2 · Jun 29, 2021 · US
Vinyl alcohol polymer and cement slurry comprising same
US-10995252-B2 · May 4, 2021 · US
Chemical composition of superabsorbent vesicles, method for mortar cement admixture, and applications of the same
US-10947437-B2 · Mar 16, 2021 · US
Method for monitoring cement using polymer-based capsules
US-10947438-B2 · Mar 16, 2021 · US
Material design for the encapsulation of additives and release
US-2021054256-A1 · Feb 25, 2021 · US
Cement materials including shape memory polymer and methods of making cement materials
US-10876030-B2 · Dec 29, 2020 · US
Material design for the encapsulation of additives and release
US-10858572-B2 · Dec 8, 2020 · US
Additive for oil well cement and cement slurry using said additive for oil well cement
US-2020377780-A1 · Dec 3, 2020 · US
Vinyl alcohol polymer and cement slurry comprising same
US-2020224076-A1 · Jul 16, 2020 · US
Method for monitoring cement using polymer-based capsules
US-2020216743-A1 · Jul 9, 2020 · US
Chemical composition of superabsorbent vesicles, method for mortar cement admixture, and applications of the same
US-2020199432-A1 · Jun 25, 2020 · US
Material design for the encapsulation of additives and release
US-2020199434-A1 · Jun 25, 2020 · US
Preparation of pozzolanic material-containing amphoteric composite hydrogel and use thereof
US-2020199023-A1 · Jun 25, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C04B24/287?
- CPC C04B24/287 is the Cooperative Patent Classification code for “Polyamides.”
- How many patents are filed under CPC C04B24/287 (Polyamides)?
- Our database includes 51 publications tagged with this CPC code.
- Is patent activity under CPC C04B24/287 growing?
- Publication counts under this code: 1 in 2024 vs 1 in 2025 (latest complete years).