Negative electrode active material for rechargeable lithium battery, method for preparing the same, negative electrode including the same, and rechargeable lithium battery including the same
US-2026018612-A1 · Jan 15, 2026 · US
of polymers of unsaturated carboxylic acids or unsaturated esters
of polymers of unsaturated carboxylic acids or unsaturated esters · Cooperative Patent Classification (CPC)
Textile and paper production, treatment, and products.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | D01F6/52 |
| Official title | of polymers of unsaturated carboxylic acids or unsaturated esters |
| Display label | of polymers of unsaturated carboxylic acids or unsaturated esters |
| Total patents | 33 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 1 |
| 2017 | 6 |
| 2018 | 2 |
| 2019 | 4 |
| 2020 | 3 |
| 2021 | 4 |
| 2022 | 4 |
| 2023 | 3 |
| 2024 | 3 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fibrous electrode material, preparation and application thereof
US-12191503-B2 · Jan 7, 2025 · US
Extruded Ceramic Nanofibers and Derived Materials
US-2024425418-A1 · Dec 26, 2024 · US
Extruded ceramic nanofibers and derived materials
US-12129211-B2 · Oct 29, 2024 · US
Compositions comprising electrohydrodynamically obtained fibres for administration of specific dosages of an active substance to skin or mucosa
US-2024058276-A1 · Feb 22, 2024 · US
Self-healable chemical detecting sensor embedding transition metal-adsorbed paa-pva-borax fiber-gel
US-2023400415-A1 · Dec 14, 2023 · US
Fibrous elements comprising a non-hydroxyl polymer and methods for making same
US-11773248-B2 · Oct 3, 2023 · US
Porous fiber, adsorbent material, and purification column
US-11596922-B2 · Mar 7, 2023 · US
Extruded Ceramic Nanofibers and Derived Materials
US-2022306544-A1 · Sep 29, 2022 · US
Fibrous Electrode Material, Preparation and Application Thereof
US-2022246945-A1 · Aug 4, 2022 · US
Nanofibers and preparation methods therefor
US-11401629-B2 · Aug 2, 2022 · US
Nanofibers and preparation methods therefor
US-2022213620-A1 · Jul 7, 2022 · US
Porous fiber and adsorption column
US-11135566-B2 · Oct 5, 2021 · US
Fabric, method for manufacturing same, and fiber product
US-11078608-B2 · Aug 3, 2021 · US
Coaxial cellulose-based aerogel fibers
US-2021156051-A1 · May 27, 2021 · US
Resin composition and filament-like molded body formed from same
US-2021002478-A1 · Jan 7, 2021 · US
Porous fiber and adsorption column
US-2020376465-A1 · Dec 3, 2020 · US
Beauty care pack and method for manufacturing same
US-10743638-B2 · Aug 18, 2020 · US
Fabric, method for manufacturing same, and fiber product
US-2020063299-A1 · Feb 27, 2020 · US
Hydrophobic and oleophobic membrane, and waterproof sound device using same
US-10477305-B2 · Nov 12, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC D01F6/52?
- CPC D01F6/52 is the Cooperative Patent Classification code for “of polymers of unsaturated carboxylic acids or unsaturated esters.”
- How many patents are filed under CPC D01F6/52 (of polymers of unsaturated carboxylic acids or unsaturated esters)?
- Our database includes 33 publications tagged with this CPC code.
- Is patent activity under CPC D01F6/52 growing?
- Publication counts under this code: 3 in 2024 vs 1 in 2025 (latest complete years).