Side-chain functionalized polystyrenes as membrane materials for alkaline water electrolyzers, fuel cells and flow batteries
US-2026078248-A1 · Mar 19, 2026 · US
Bromine
Bromine · 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 | C08F212/21 |
| Official title | {Bromine} |
| Display label | Bromine |
| Total patents | 27 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2016 | 2 |
| 2017 | 1 |
| 2018 | 3 |
| 2019 | 2 |
| 2020 | 1 |
| 2021 | 3 |
| 2022 | 4 |
| 2023 | 4 |
| 2024 | 1 |
| 2025 | 5 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Ethylene-based copolymer and propylene-alpha-olefin-diene compositions for use in layered articles
US-12448505-B2 · Oct 21, 2025 · US
High propylene content EP having low glass transition temperatures
US-12305028-B2 · May 20, 2025 · US
Ethylene-based copolymer and propylene-alpha-olefin-diene compositions for use in layered articles
US-12305027-B2 · May 20, 2025 · US
Tires comprising rubber compounds that comprise propylene-α-olefin-diene polymers
US-12281221-B2 · Apr 22, 2025 · US
Isobutylene-containing compositions and articles made thereof
US-12252563-B2 · Mar 18, 2025 · US
Thioacetate functionalized isobutylene-based polymers and curable compositions containing the same
US-12006393-B2 · Jun 11, 2024 · US
Same novel polymer and organic light emitting device comprising the same
US-11845824-B2 · Dec 19, 2023 · US
Antireflective film including a photoresist material containing a polymer compound having an aromatic group, method of producing antireflective film, and eyeglass type display
US-11762127-B2 · Sep 19, 2023 · US
Cationomeric polyolefin compositions and methods for production and use thereof
US-11702525-B2 · Jul 18, 2023 · US
Solvent-free process for functionalizing isobutylene-based polymers
US-11649303-B2 · May 16, 2023 · US
Tires Comprising Rubber Compounds that Comprise Propylene-a-Olefin-Diene Polymers
US-2022288971-A1 · Sep 15, 2022 · US
Ethylene-Based Copolymer and Propylene-Alpha-Olefin-Diene Compositions for Use in Layered Articles
US-2022290013-A1 · Sep 15, 2022 · US
Pressure Sensitive Adhesives Comprising Propylene-Ethylene(-Diene) Copolymers
US-2022267649-A1 · Aug 25, 2022 · US
High Propylene Content EP Having Low Glass Transition Temperatures
US-2022251361-A1 · Aug 11, 2022 · US
Isobutylene-Containing Compositions and Articles Made Thereof
US-2021246242-A1 · Aug 12, 2021 · US
Novel Polymer and Organic Light Emitting Device Comprising the Same
US-2021221932-A1 · Jul 22, 2021 · US
Antireflective film including a photoresist material containing a polymer compound having an aromatic group, method of producing antireflective film, and eyeglass type display
US-2021096285-A1 · Apr 1, 2021 · US
Cationomeric Polyolefin Compositions and Methods for Production and Use Thereof
US-2020172691-A1 · Jun 4, 2020 · US
Methods of making crosslinked copolymer films from inimer-containing random copolymers
US-10465087-B2 · Nov 5, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08F212/21?
- CPC C08F212/21 is the Cooperative Patent Classification code for “Bromine.”
- How many patents are filed under CPC C08F212/21 (Bromine)?
- Our database includes 27 publications tagged with this CPC code.
- Is patent activity under CPC C08F212/21 growing?
- Publication counts under this code: 1 in 2024 vs 5 in 2025 (latest complete years).