Film comprising single-layer carbon nanotubes and having dense portions and sparse portions, process for producing same, and material including said film and process for producing same
US-9847181-B2 · Dec 19, 2017 · US
single-walled
single-walled · 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 | C01B32/159 |
| Official title | single-walled |
| Display label | single-walled |
| Total patents | 310 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 13 |
| 2016 | 22 |
| 2017 | 27 |
| 2018 | 17 |
| 2019 | 29 |
| 2020 | 41 |
| 2021 | 22 |
| 2022 | 38 |
| 2023 | 34 |
| 2024 | 39 |
| 2025 | 26 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Nanotube film structure
US-9828253-B2 · Nov 28, 2017 · US
Three-dimensional carbon structures
US-9815696-B2 · Nov 14, 2017 · US
Carbon nanotube and process for producing the carbon nanotube, and lithium ion secondary battery using the carbon nanotube
US-2017313586-A1 · Nov 2, 2017 · US
Carbon nanotube fiber and method for producing same
US-9802823-B2 · Oct 31, 2017 · US
Ordered Wrapping of Poly(Methyl Methacrylate) on Single Wall Carbon Nanotubes
US-2017298208-A1 · Oct 19, 2017 · US
System and method of producing a composite product
US-2017267530-A1 · Sep 21, 2017 · US
Film comprising single-layer carbon nanotubes and having dense portions and sparse portions, process for producing same, and material including said film and process for producing same
US-2017271090-A1 · Sep 21, 2017 · US
Methods of Making and Purifying Carbon Nanotubes
US-2017260053-A1 · Sep 14, 2017 · US
Aligned carbon nanotubes for use in high performance field effect transistors
US-9728734-B2 · Aug 8, 2017 · US
Low Porosity Nanotube Fabric Articles
US-2017210626-A1 · Jul 27, 2017 · US
Resin composition, laminate and laminate production method
US-2017197382-A1 · Jul 13, 2017 · US
Three-dimensional carbon structures
US-2017190577-A1 · Jul 6, 2017 · US
Cohesive assembly of carbon and its application
US-2017194629-A1 · Jul 6, 2017 · US
Methods of making and purifying carbon nanotubes
US-9688537-B2 · Jun 27, 2017 · US
Thermoelectric conversion element and thermoelectric conversion module
US-2017179363-A1 · Jun 22, 2017 · US
Carbon-based fine structure array, aggregate of carbon-based fine structures, use thereof and method for preparation thereof
US-9682862-B2 · Jun 20, 2017 · US
Method for growing vertically oriented single-walled carbon nanotubes with the same electronic properties and for reproducing single-walled carbon nanotubes with the same electronic properties
US-2017137935-A1 · May 18, 2017 · US
High-performance, filler-reinforced, recyclable composite materials
US-2017130024-A1 · May 11, 2017 · US
Three-dimensional carbon structures
US-9630848-B2 · Apr 25, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B32/159?
- CPC C01B32/159 is the Cooperative Patent Classification code for “single-walled.”
- How many patents are filed under CPC C01B32/159 (single-walled)?
- Our database includes 310 publications tagged with this CPC code.
- Is patent activity under CPC C01B32/159 growing?
- Publication counts under this code: 39 in 2024 vs 26 in 2025 (latest complete years).