Comb polymers as blocking additives for swelling clays
US-12338175-B2 · Jun 24, 2025 · US
containing polyether side chains · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C04B24/165 |
| Official title | {containing polyether side chains} |
| Display label | containing polyether side chains |
| Total patents | 60 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 4 |
| 2017 | 9 |
| 2018 | 12 |
| 2019 | 5 |
| 2020 | 8 |
| 2021 | 6 |
| 2022 | 3 |
| 2023 | 5 |
| 2024 | 4 |
| 2025 | 2 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-12338175-B2 · Jun 24, 2025 · US
US-2025100930-A1 · Mar 27, 2025 · US
US-2024246858-A1 · Jul 25, 2024 · US
US-12017957-B2 · Jun 25, 2024 · US
US-2024059892-A1 · Feb 22, 2024 · US
US-2024010775-A1 · Jan 11, 2024 · US
US-2023391941-A1 · Dec 7, 2023 · US
US-11827784-B2 · Nov 28, 2023 · US
US-2023303444-A1 · Sep 28, 2023 · US
US-2023286862-A1 · Sep 14, 2023 · US
US-2023087362-A1 · Mar 23, 2023 · US
US-2022371957-A1 · Nov 24, 2022 · US
US-11447682-B2 · Sep 20, 2022 · US
US-2022033306-A1 · Feb 3, 2022 · US
US-2021292552-A1 · Sep 23, 2021 · US
US-11066330-B2 · Jul 20, 2021 · US
US-2021147293-A1 · May 20, 2021 · US
US-10988415-B2 · Apr 27, 2021 · US
US-10981829-B2 · Apr 20, 2021 · US
US-2021024415-A1 · Jan 28, 2021 · US
Answers are generated from the same data shown on this page.