Carbon nanotube dispersion liquid for nonaqueous electrolyte secondary battery, resin composition using the same, mixture slurry, electrode film, and nonaqueous electrolyte secondary battery
US-2022376262-A1 · Nov 24, 2022 · US
Purity
Purity · 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 | C01B2202/30 |
| Official title | Purity |
| Display label | Purity |
| Total patents | 115 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 1 |
| 2017 | 4 |
| 2018 | 11 |
| 2019 | 11 |
| 2020 | 6 |
| 2021 | 12 |
| 2022 | 13 |
| 2023 | 13 |
| 2024 | 16 |
| 2025 | 21 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Control of trion density in carbon nanotubes for electro-optical and opto-electric devices
US-11508462-B2 · Nov 22, 2022 · US
Co-production of hydrogen-enriched compressed natural gas and carbon nanotubes
US-2022332573-A1 · Oct 20, 2022 · US
Carbon nanotube production device and production method
US-2022274836-A1 · Sep 1, 2022 · US
Preparation method and preparation system of carbon nanotubes
US-2022203320-A1 · Jun 30, 2022 · US
Methods for characterizing nanotube formulations for nanotube fabrics with controlled surface roughness and degree of rafting
US-11332861-B2 · May 17, 2022 · US
Multi-walled carbon nanotube, multi-walled carbon nanotube aggregation, and method for producing the multiwalled carbon nanotube
US-11305997-B2 · Apr 19, 2022 · US
Carbon nanotube, carbon nanotube dispersion, and use thereof
US-11286164-B2 · Mar 29, 2022 · US
Fibrous carbon nanostructure dispersion liquid, method of producing same, and fibrous carbon nanostructure
US-11192789-B2 · Dec 7, 2021 · US
Method for producing carbon nanotubes
US-2021331924-A1 · Oct 28, 2021 · US
Dispersions for additive manufacturing comprising discrete carbon nanotubes
US-2021237509-A1 · Aug 5, 2021 · US
Carbon nanotube composite, method for manufacturing the same, and method for manufacturing refined carbon nanotube
US-2021214228-A1 · Jul 15, 2021 · US
Carbon nanotube, carbon nanotube dispersion, and use thereof
US-2021214229-A1 · Jul 15, 2021 · US
Ultra-long chiral carbon nanotube, method for preparing the same, application thereof, and high-performance photoelectric device
US-2021198109-A1 · Jul 1, 2021 · US
Apparatus for continuously producing carbon nanotubes
US-2021188643-A1 · Jun 24, 2021 · US
Fibrous carbon nanostructure dispersion liquid
US-10995223-B2 · May 4, 2021 · US
Method for the purification of raw carbon nanotubes
US-2021107791-A1 · Apr 15, 2021 · US
Carbon nanotube growth method
US-2021078862-A1 · Mar 18, 2021 · US
Lithium ion battery using high surface area nanotubes
US-2021047185-A1 · Feb 18, 2021 · US
Carbon purification method and carbon product
US-2021009422-A1 · Jan 14, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B2202/30?
- CPC C01B2202/30 is the Cooperative Patent Classification code for “Purity.”
- How many patents are filed under CPC C01B2202/30 (Purity)?
- Our database includes 115 publications tagged with this CPC code.
- Is patent activity under CPC C01B2202/30 growing?
- Publication counts under this code: 16 in 2024 vs 21 in 2025 (latest complete years).