Method for increasing amount of water absorbed under load by water absorbent resin particles, and method for producing water absorbent resin particles
US-12478952-B2 · Nov 25, 2025 · US
On to modified polymers, e.g. chlorinated polymers · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C08F255/023 |
| Official title | {On to modified polymers, e.g. chlorinated polymers} |
| Display label | On to modified polymers, e.g. chlorinated polymers |
| Total patents | 54 |
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 | 5 |
| 2017 | 5 |
| 2018 | 7 |
| 2019 | 5 |
| 2020 | 11 |
| 2021 | 5 |
| 2022 | 6 |
| 2023 | 2 |
| 2024 | 5 |
| 2025 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-12478952-B2 · Nov 25, 2025 · US
US-2024392043-A1 · Nov 28, 2024 · US
US-2024228689-A9 · Jul 11, 2024 · US
US-11993740-B2 · May 28, 2024 · US
US-2024132651-A1 · Apr 25, 2024 · US
US-2024109995-A1 · Apr 4, 2024 · US
US-11801505-B2 · Oct 31, 2023 · US
US-2023220247-A1 · Jul 13, 2023 · US
US-11518838-B2 · Dec 6, 2022 · US
US-2022314199-A1 · Oct 6, 2022 · US
US-2022267496-A1 · Aug 25, 2022 · US
US-11384188-B2 · Jul 12, 2022 · US
US-2022126282-A1 · Apr 28, 2022 · US
US-2022041932-A1 · Feb 10, 2022 · US
US-11203650-B2 · Dec 21, 2021 · US
US-11046844-B2 · Jun 29, 2021 · US
US-11001662-B2 · May 11, 2021 · US
US-10968304-B2 · Apr 6, 2021 · US
US-2021070911-A1 · Mar 11, 2021 · US
US-10858502-B2 · Dec 8, 2020 · US
Answers are generated from the same data shown on this page.