Advanced separators based on aromatic polymer for high energy density lithium batteries
US-9598545-B2 · Mar 21, 2017 · US
based on macromolecular compounds obtained by reactions other than those involving carbon-to-carbon bonds, e.g. obtained by polycondensation
based on macromolecular compounds obtained by reactions other than those involving carbon-to-carbon bonds, e.g. obtained by polycondensation · 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 | C08J5/2256 |
| Official title | {based on macromolecular compounds obtained by reactions other than those involving carbon-to-carbon bonds, e.g. obtained by polycondensation} |
| Display label | based on macromolecular compounds obtained by reactions other than those involving carbon-to-carbon bonds, e.g. obtained by polycondensation |
| Total patents | 330 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 33 |
| 2016 | 25 |
| 2017 | 45 |
| 2018 | 25 |
| 2019 | 30 |
| 2020 | 32 |
| 2021 | 19 |
| 2022 | 22 |
| 2023 | 25 |
| 2024 | 37 |
| 2025 | 31 |
| 2026 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Polymer electrolyte composition and polymer electrolyte membrane, polymer electrolyte membrane with catalyst layer, membrane electrode assembly, and polymer electrolyte fuel cell each using the same
US-2017033387-A1 · Feb 2, 2017 · US
Anion-conducting polymer
US-9511362-B2 · Dec 6, 2016 · US
Dibenzylated polybenzimidazole based polymer and method for preparing the same
US-9509008-B2 · Nov 29, 2016 · US
Blend membranes based on polybenzimidazole (pbi) and polymeric ionic liquids (pils) and a process for the preparation thereof
US-2016340484-A1 · Nov 24, 2016 · US
Semipermeable membrane production process and semipermeable membrane
US-2016317973-A1 · Nov 3, 2016 · US
Self-assembled structure and membrane comprising block copolymer and process for producing the same by spin coating (IVa)
US-9469733-B2 · Oct 18, 2016 · US
Polymer electrolyte membrane for fuel cell and membrane-electrode assembly for fuel cell including same
US-2016301092-A1 · Oct 13, 2016 · US
Method for making anion electrolyte membrane
US-9461326-B2 · Oct 4, 2016 · US
Solid polymer electrolyte composition
US-2016276706-A1 · Sep 22, 2016 · US
Self-assembling polymers—I
US-9441078-B2 · Sep 13, 2016 · US
Arylcyclobutenes
US-9441055-B1 · Sep 13, 2016 · US
Lead ion sensors, methods of making and uses thereof
US-2016231271-A1 · Aug 11, 2016 · US
Novel Polymer Useful for an Ion Exchange Membrane
US-2016222177-A1 · Aug 4, 2016 · US
Water-treatment separation membrane comprising ionic exchangeable polymer layer and method for forming same
US-2016220968-A1 · Aug 4, 2016 · US
Co-abpbi membranes and process for the preparation thereof
US-2016215110-A1 · Jul 28, 2016 · US
Moisture resistant polyimide compositions
US-9400091-B2 · Jul 26, 2016 · US
Anion-conducting polymer
US-2016193599-A1 · Jul 7, 2016 · US
Anion exchange membrane for electrodialysis applications and process for the preparation thereof
US-2016177043-A1 · Jun 23, 2016 · US
Composite electrolyte membrane for fuel cell, method for producing the electrolyte membrane and fuel cell including the electrolyte membrane
US-9368821-B2 · Jun 14, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08J5/2256?
- CPC C08J5/2256 is the Cooperative Patent Classification code for “based on macromolecular compounds obtained by reactions other than those involving carbon-to-carbon bonds, e.g. obtained by polycondensation.”
- How many patents are filed under CPC C08J5/2256 (based on macromolecular compounds obtained by reactions other than those involving carbon-to-carbon bonds, e.g. obtained by polycondensation)?
- Our database includes 330 publications tagged with this CPC code.
- Is patent activity under CPC C08J5/2256 growing?
- Publication counts under this code: 37 in 2024 vs 31 in 2025 (latest complete years).