Composite catalyst and method for manufacturing carbon nanostructured materials
US-9845243-B2 · Dec 19, 2017 · US
Multi-walled nanotubes
Multi-walled 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 | C01B2202/06 |
| Official title | Multi-walled nanotubes |
| Display label | Multi-walled nanotubes |
| Total patents | 440 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 27 |
| 2016 | 29 |
| 2017 | 54 |
| 2018 | 41 |
| 2019 | 59 |
| 2020 | 35 |
| 2021 | 45 |
| 2022 | 30 |
| 2023 | 38 |
| 2024 | 43 |
| 2025 | 33 |
| 2026 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fabrication and application of nanofiber ribbons and sheets and twisted and non-twisted nanofiber yarns
US-2017137290-A1 · May 18, 2017 · US
Fabrication of nanofiber ribbons and sheets
US-9605363-B2 · Mar 28, 2017 · US
Catalyst for Production of Multi-Walled Carbon Nanotubes and Method of Producing Multi-Walled Carbon Nanotubes Using the Same
US-2017022063-A1 · Jan 26, 2017 · US
Catalyst and Method for Synthesis of Carbon Nanomaterials
US-2016367971-A1 · Dec 22, 2016 · US
A waterproof and oxygen-isolating sealing film and preparation method
US-2016362577-A1 · Dec 15, 2016 · US
Method for preparing a suspension containing carbon nanotubes and stable suspension obtained in this way
US-2016362300-A1 · Dec 15, 2016 · US
Nanofiber ribbons and sheets and fabrication and application thereof
US-9512545-B2 · Dec 6, 2016 · US
Secondary structure of carbon nanostructure, bundle thereof and composite comprising same
US-9512006-B2 · Dec 6, 2016 · US
Carbon nanotube foams with controllable mechanical properties
US-9499903-B2 · Nov 22, 2016 · US
Method of selective separation of semiconducting carbon nanotubes, dispersion of semiconducting carbon nanotubes, and electronic device including carbon nanotubes separated by using the method
US-9502152-B2 · Nov 22, 2016 · US
Carbon nanotube freestanding membrane, process for production of the same, composites having carbon nanotube membranes and process for production thereof
US-2016332884-A1 · Nov 17, 2016 · US
Solvent-based methods for production of graphene nanoribbons
US-9493355-B2 · Nov 15, 2016 · US
Fabrication and application of nanofiber ribbons and sheets and twisted and non-twisted nanofiber yarns
US-9481949-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
Fabrication and application of nanofiber ribbons and sheets and twisted and non-twisted nanofiber yarns
US-2016273133-A1 · Sep 22, 2016 · US
Carbon nanostructure preblends and their applications
US-2016251534-A1 · Sep 1, 2016 · US
Fabrication and application of nanofiber ribbons and sheets and twisted and non-twisted nanofiber yarns
US-2016251778-A1 · Sep 1, 2016 · US
Method and apparatus for producing carbon nanotubes
US-9428391-B2 · Aug 30, 2016 · US
Composite carbon fibers
US-9397340-B2 · Jul 19, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B2202/06?
- CPC C01B2202/06 is the Cooperative Patent Classification code for “Multi-walled nanotubes.”
- How many patents are filed under CPC C01B2202/06 (Multi-walled nanotubes)?
- Our database includes 440 publications tagged with this CPC code.
- Is patent activity under CPC C01B2202/06 growing?
- Publication counts under this code: 43 in 2024 vs 33 in 2025 (latest complete years).