Conducting material composition, and slurry composition for forming electrode of lithium rechargeable battery and lithium rechargeable battery using the same
US-2016380270-A1 · Dec 29, 2016 · US
Carbon nanotubes
Carbon nanotubes · 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 | C01B32/158 |
| Official title | Carbon nanotubes |
| Display label | Carbon nanotubes |
| Total patents | 683 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 25 |
| 2016 | 39 |
| 2017 | 60 |
| 2018 | 72 |
| 2019 | 106 |
| 2020 | 86 |
| 2021 | 70 |
| 2022 | 57 |
| 2023 | 64 |
| 2024 | 49 |
| 2025 | 47 |
| 2026 | 8 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Nanofiber ribbons and sheets and fabrication and application thereof
US-9512545-B2 · Dec 6, 2016 · US
Dispersions comprising discrete carbon nanotube fibers
US-2016339125-A1 · Nov 24, 2016 · US
Carbon nanotube fiber and method for producing same
US-2016340193-A1 · Nov 24, 2016 · US
Dispersions comprising discrete carbon nanotube fibers
US-9493626-B1 · Nov 15, 2016 · US
Fabrication of anchored carbon nanotube array devices for integrated light collection and energy conversion
US-9484543-B2 · Nov 1, 2016 · US
Fabrication and application of nanofiber ribbons and sheets and twisted and non-twisted nanofiber yarns
US-9481949-B2 · Nov 1, 2016 · US
Conductive sealant compositions
US-9484123-B2 · Nov 1, 2016 · US
Fabrication and application of nanofiber ribbons and sheets and twisted and non-twisted nanofiber yarns
US-2016312387-A1 · Oct 27, 2016 · US
Conductive film, fuel cell-use gas diffusion layer, fuel cell-use catalyst layer, fuel cell-use electrode, fuel cell-use membrane-electrode assembly, and fuel cell
US-2016315331-A1 · Oct 27, 2016 · US
Electrode material, redox flow battery electrode, redox flow battery, and method for producing electrode material
US-2016293970-A1 · Oct 6, 2016 · US
Method of manufacturing carbon nanotubes and fibers using catalytic metal oxide nanoparticles
US-2016280546-A1 · Sep 29, 2016 · US
Graphene-carbon nanotube hybrid materials and use as electrodes
US-9455094-B2 · Sep 27, 2016 · US
Carbon fiber membrane
US-2016276111-A1 · Sep 22, 2016 · US
Display screen film, preparation method therefor and energy saving method
US-2016259235-A1 · Sep 8, 2016 · US
Fabrication and application of nanofiber ribbons and sheets and twisted and non-twisted nanofiber yarns
US-2016251778-A1 · Sep 1, 2016 · US
Adsorption heat exchanger devices
US-2016252278-A1 · Sep 1, 2016 · US
Nanofibrous Electrocatalysts
US-2016248102-A1 · Aug 25, 2016 · US
Elastomer formulations comprising discrete carbon nanotube fibers
US-9422413-B1 · Aug 23, 2016 · US
Carbon nanotubes, dispersion liquid thereof, carbon nanotube-containing film, and composite material
US-2016229695-A1 · Aug 11, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B32/158?
- CPC C01B32/158 is the Cooperative Patent Classification code for “Carbon nanotubes.”
- How many patents are filed under CPC C01B32/158 (Carbon nanotubes)?
- Our database includes 683 publications tagged with this CPC code.
- Is patent activity under CPC C01B32/158 growing?
- Publication counts under this code: 49 in 2024 vs 47 in 2025 (latest complete years).