Photopolymer composition, photopolymer film, holographic recording medium, optical element and holographic recording method
US-2025297091-A1 · Sep 25, 2025 · US
Polyethers
Polyethers · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C08F290/142 |
| Official title | {Polyethers} |
| Display label | Polyethers |
| Total patents | 64 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 4 |
| 2017 | 6 |
| 2018 | 1 |
| 2019 | 5 |
| 2020 | 8 |
| 2021 | 4 |
| 2022 | 11 |
| 2023 | 3 |
| 2024 | 11 |
| 2025 | 7 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Polymer electrolyte and secondary battery
US-2025279471-A1 · Sep 4, 2025 · US
High water reduction powder preparation for dry mortar
US-12391616-B2 · Aug 19, 2025 · US
Comb polymers as blocking additives for swelling clays
US-12338175-B2 · Jun 24, 2025 · US
Antioxidant stabilizers for direct fabrication of orthodontic appliances
US-2025197658-A1 · Jun 19, 2025 · US
Radiation-sensitive composition for forming insulation film, resin film having pattern, and semiconductor circuit board
US-2024389227-A1 · Nov 21, 2024 · US
Curable composition, molded body, silicone hydrogel, method for producing silicone hydrogel, and macromonomer
US-2024317908-A1 · Sep 26, 2024 · US
Curable composition for optical materials, and optical material
US-12077623-B2 · Sep 3, 2024 · US
Optical material composition and optical material
US-12054568-B2 · Aug 6, 2024 · US
Comb polymers as blocking additives for swelling clays
US-2024246858-A1 · Jul 25, 2024 · US
Comb polymers as blocking additives for swelling clays
US-12017957-B2 · Jun 25, 2024 · US
Curable composition for optical materials, and optical material
US-11976149-B2 · May 7, 2024 · US
Polymerizable surfactants having water whitening resistance and methods for use
US-2024110102-A1 · Apr 4, 2024 · US
Polymerizable surfactants having water whitening resistance and methods for use
US-11884867-B2 · Jan 30, 2024 · US
Polymer, composition, cured product, laminate, and electronic component
US-2024026069-A1 · Jan 25, 2024 · US
Solid electrolyte, method for preparing same, and all-solid battery comprising same
US-11870033-B2 · Jan 9, 2024 · US
Polymer having dispersing function, polycarboxylic acid cement dispersant, preparation method therefor and use thereof
US-2023391941-A1 · Dec 7, 2023 · US
Carbon material dispersion
US-2023212343-A1 · Jul 6, 2023 · US
Comb polymers as blocking additives for swelling clays
US-2023087362-A1 · Mar 23, 2023 · US
(Per)fluoropolyether polymers and use thereof
US-11525070-B2 · Dec 13, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08F290/142?
- CPC C08F290/142 is the Cooperative Patent Classification code for “Polyethers.”
- How many patents are filed under CPC C08F290/142 (Polyethers)?
- Our database includes 64 publications tagged with this CPC code.
- Is patent activity under CPC C08F290/142 growing?
- Publication counts under this code: 11 in 2024 vs 7 in 2025 (latest complete years).