Crosslinkable rubber and method for producing same, and rubber crosslinked product
US-2025179231-A1 · Jun 5, 2025 · US
Esters having free carboxylic acid groups {, e.g. monoalkyl maleates or fumarates} · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C08F222/16 |
| Official title | Esters having free carboxylic acid groups {, e.g. monoalkyl maleates or fumarates} |
| Display label | Esters having free carboxylic acid groups {, e.g. monoalkyl maleates or fumarates} |
| Total patents | 41 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 1 |
| 2017 | 3 |
| 2018 | 5 |
| 2019 | 3 |
| 2020 | 7 |
| 2021 | 3 |
| 2022 | 4 |
| 2023 | 6 |
| 2024 | 4 |
| 2025 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-2025179231-A1 · Jun 5, 2025 · US
US-12162969-B2 · Dec 10, 2024 · US
US-2024360260-A1 · Oct 31, 2024 · US
US-12094507-B2 · Sep 17, 2024 · US
US-11890896-B2 · Feb 6, 2024 · US
US-11845884-B2 · Dec 19, 2023 · US
US-2023174696-A1 · Jun 8, 2023 · US
US-2023159682-A1 · May 25, 2023 · US
US-2023117877-A1 · Apr 20, 2023 · US
US-2023114335-A1 · Apr 13, 2023 · US
US-11597791-B2 · Mar 7, 2023 · US
US-2022363793-A1 · Nov 17, 2022 · US
US-11492482-B2 · Nov 8, 2022 · US
US-11401361-B2 · Aug 2, 2022 · US
US-2022013142-A1 · Jan 13, 2022 · US
US-2021301056-A1 · Sep 30, 2021 · US
US-11091577-B2 · Aug 17, 2021 · US
US-2021009735-A1 · Jan 14, 2021 · US
US-2020392273-A1 · Dec 17, 2020 · US
US-2020157267-A1 · May 21, 2020 · US
Answers are generated from the same data shown on this page.