Hydrophilic polymer, method of preparing the same, and lithium secondary battery containing the hydrophilic polymer
US-12590175-B2 · Mar 31, 2026 · US
Chlorine
Chlorine · 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 | C08F212/18 |
| Official title | {Chlorine} |
| Display label | Chlorine |
| Total patents | 61 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 5 |
| 2017 | 7 |
| 2018 | 11 |
| 2019 | 3 |
| 2020 | 3 |
| 2021 | 3 |
| 2022 | 5 |
| 2023 | 5 |
| 2024 | 6 |
| 2025 | 5 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Side-chain functionalized polystyrenes as membrane materials for alkaline water electrolyzers, fuel cells and flow batteries
US-2026078248-A1 · Mar 19, 2026 · US
Semiconductor photoresist composition and method of forming patterns using the composition
US-2026016748-A1 · Jan 15, 2026 · US
Copolymer, positive resist composition, and method of forming resist pattern
US-12422753-B2 · Sep 23, 2025 · US
Aromatic polycarbonate resin composition and molded article thereof
US-2025188276-A1 · Jun 12, 2025 · US
Acrylic copolymer, method for manufacturing same, and acrylic copolymer composition comprising same
US-12304983-B2 · May 20, 2025 · US
Molded product comprising polarized olefin-based polymer and property thereof
US-12291585-B2 · May 6, 2025 · US
Isobutylene-containing compositions and articles made thereof
US-12252563-B2 · Mar 18, 2025 · US
Hydrophilic polymer, method of preparing the same, and lithium secondary battery containing the hydrophilic polymer
US-2024287226-A1 · Aug 29, 2024 · US
Maleimide resin, amine resin, curable resin composition, and cured product thereof
US-2024262941-A1 · Aug 8, 2024 · US
Process for producing anion exchangers
US-2024254296-A1 · Aug 1, 2024 · US
Copolymers with cationic, nitrogen-containing groups and anion exchange membranes made therefrom
US-12018104-B2 · Jun 25, 2024 · US
Block copolymer intrinsic stretchable electroluminescent elastomer and preparation method and application thereof
US-12012481-B2 · Jun 18, 2024 · US
Positive electrode and lithium battery including the same
US-11909037-B2 · Feb 20, 2024 · US
Photosensitive polymer, photoresist composition including the same, and method of fabricating semiconductor device
US-2023296983-A1 · Sep 21, 2023 · US
Copolymer, positive resist composition, and method of forming resist pattern
US-2023288805-A1 · Sep 14, 2023 · US
Molded product comprising polarized olefin-based polymer and property thereof
US-2023110760-A1 · Apr 13, 2023 · US
Positive electrode and lithium battery including the same
US-2023104445-A1 · Apr 6, 2023 · US
Positive electrode and lithium battery including the same
US-11575128-B2 · Feb 7, 2023 · US
Molded product comprising polarized olefin-based polymer and property thereof
US-11535688-B2 · Dec 27, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08F212/18?
- CPC C08F212/18 is the Cooperative Patent Classification code for “Chlorine.”
- How many patents are filed under CPC C08F212/18 (Chlorine)?
- Our database includes 61 publications tagged with this CPC code.
- Is patent activity under CPC C08F212/18 growing?
- Publication counts under this code: 6 in 2024 vs 5 in 2025 (latest complete years).