Polyimide precursor solution and method for producing porous polyimide film
US-12269948-B2 · Apr 8, 2025 · US
Elimination of an organic solid phase · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C08J2201/042 |
| Official title | Elimination of an organic solid phase |
| Display label | Elimination of an organic solid phase |
| Total patents | 55 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 2 |
| 2017 | 5 |
| 2018 | 7 |
| 2019 | 8 |
| 2020 | 7 |
| 2021 | 7 |
| 2022 | 6 |
| 2023 | 6 |
| 2024 | 3 |
| 2025 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-12269948-B2 · Apr 8, 2025 · US
US-12077672-B2 · Sep 3, 2024 · US
US-12054437-B2 · Aug 6, 2024 · US
US-11884550-B2 · Jan 30, 2024 · US
US-11795287-B2 · Oct 24, 2023 · US
US-2023295393-A1 · Sep 21, 2023 · US
US-11673985-B2 · Jun 13, 2023 · US
US-11674011-B2 · Jun 13, 2023 · US
US-2023037916-A1 · Feb 9, 2023 · US
US-11545718-B2 · Jan 3, 2023 · US
US-2022362718-A1 · Nov 17, 2022 · US
US-11396585-B2 · Jul 26, 2022 · US
US-2022098119-A1 · Mar 31, 2022 · US
US-2022073743-A1 · Mar 10, 2022 · US
US-2022064463-A1 · Mar 3, 2022 · US
US-11230503-B2 · Jan 25, 2022 · US
US-11180670-B2 · Nov 23, 2021 · US
US-2021317282-A1 · Oct 14, 2021 · US
US-11098159-B2 · Aug 24, 2021 · US
US-2021238374-A1 · Aug 5, 2021 · US
Answers are generated from the same data shown on this page.