Preparation method for super absorbent polymer film
US-12590193-B2 · Mar 31, 2026 · US
Component parts, details or accessories; Auxiliary operations · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B29C41/34 |
| Official title | Component parts, details or accessories; Auxiliary operations |
| Display label | Component parts, details or accessories; Auxiliary operations |
| Total patents | 56 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 6 |
| 2017 | 5 |
| 2018 | 1 |
| 2019 | 6 |
| 2020 | 6 |
| 2021 | 4 |
| 2022 | 5 |
| 2023 | 7 |
| 2024 | 6 |
| 2025 | 4 |
| 2026 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-12590193-B2 · Mar 31, 2026 · US
US-2025319687-A1 · Oct 16, 2025 · US
US-12384077-B2 · Aug 12, 2025 · US
US-2025135703-A1 · May 1, 2025 · US
US-2025042066-A1 · Feb 6, 2025 · US
US-12162192-B2 · Dec 10, 2024 · US
US-2024191181-A1 · Jun 13, 2024 · US
US-2024145117-A1 · May 2, 2024 · US
US-11920118-B2 · Mar 5, 2024 · US
US-2024067813-A1 · Feb 29, 2024 · US
US-2024058593-A1 · Feb 22, 2024 · US
US-2023415384-A1 · Dec 28, 2023 · US
US-11752322-B2 · Sep 12, 2023 · US
US-11672964-B2 · Jun 13, 2023 · US
US-2023166430-A1 · Jun 1, 2023 · US
US-2023071674-A1 · Mar 9, 2023 · US
US-11584047-B2 · Feb 21, 2023 · US
US-11577433-B2 · Feb 14, 2023 · US
US-11396116-B2 · Jul 26, 2022 · US
US-2022193386-A1 · Jun 23, 2022 · US
Answers are generated from the same data shown on this page.