Water-soluble associative amphoteric polymer as a rheology modifier for subterranean treatments
US-2024199939-A1 · Jun 20, 2024 · US
obtained by reactions only involving carbon-to-carbon unsaturated bonds · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C04B24/163 |
| Official title | {obtained by reactions only involving carbon-to-carbon unsaturated bonds} |
| Display label | obtained by reactions only involving carbon-to-carbon unsaturated bonds |
| Total patents | 123 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 16 |
| 2017 | 16 |
| 2018 | 17 |
| 2019 | 11 |
| 2020 | 17 |
| 2021 | 15 |
| 2022 | 7 |
| 2023 | 6 |
| 2024 | 7 |
| 2025 | 5 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-2024199939-A1 · Jun 20, 2024 · US
US-2019389768-A1 · Dec 26, 2019 · US
US-10442975-B2 · Oct 15, 2019 · US
US-10221095-B2 · Mar 5, 2019 · US
US-10202751-B2 · Feb 12, 2019 · US
US-10082001-B2 · Sep 25, 2018 · US
US-10081755-B2 · Sep 25, 2018 · US
US-10023782-B2 · Jul 17, 2018 · US
US-2018179108-A1 · Jun 28, 2018 · US
US-2018171208-A1 · Jun 21, 2018 · US
US-2018171203-A1 · Jun 21, 2018 · US
US-2018171206-A1 · Jun 21, 2018 · US
US-2018155478-A1 · Jun 7, 2018 · US
US-2018112120-A1 · Apr 26, 2018 · US
US-9920235-B2 · Mar 20, 2018 · US
US-9919967-B2 · Mar 20, 2018 · US
US-9909051-B2 · Mar 6, 2018 · US
US-9903177-B2 · Feb 27, 2018 · US
US-9878949-B2 · Jan 30, 2018 · US
US-9869155-B2 · Jan 16, 2018 · US
Answers are generated from the same data shown on this page.