Fabrication and application of nanofiber ribbons and sheets and twisted and non-twisted nanofiber yarns
US-9845554-B2 · Dec 19, 2017 · US
Chemistry & Metallurgy
Chemistry & Metallurgy · 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 | C01B32/17 |
| Official title | — |
| Display label | Chemistry & Metallurgy (mapped technology topic) |
| Total patents | 143 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 17 |
| 2016 | 16 |
| 2017 | 28 |
| 2018 | 18 |
| 2019 | 15 |
| 2020 | 12 |
| 2021 | 8 |
| 2022 | 10 |
| 2023 | 7 |
| 2024 | 4 |
| 2025 | 6 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Purification of carbon nanotubes via selective heating
US-9825229-B2 · Nov 21, 2017 · US
Fabrication and application of nanofiber ribbons and sheets and twisted and non-twisted nanofiber yarns
US-2017327377-A1 · Nov 16, 2017 · US
Fabrication and application of nanofiber ribbons and sheets and twisted and non-twisted nanofiber yarns
US-9815699-B1 · Nov 14, 2017 · US
Apparatus for manufacturing carbon nanotube fiber
US-2017306529-A1 · Oct 26, 2017 · US
Nanotube trans-membrane channels mimicking biological porins
US-2017304447-A1 · Oct 26, 2017 · US
Purified carbon nanotubes and applications thereof
US-9799460-B2 · Oct 24, 2017 · US
Derivatization of carbon
US-9791399-B2 · Oct 17, 2017 · US
Purification of Carbon Nanotubes Via Selective Heating
US-2017291817-A1 · Oct 12, 2017 · US
Terahertz detection and spectroscopy with films of homogeneous carbon nanotubes
US-2017279052-A1 · Sep 28, 2017 · US
Methods of Making and Purifying Carbon Nanotubes
US-2017260053-A1 · Sep 14, 2017 · US
Method for uniform dispersion of single-wall carbon nanotubes
US-9745477-B2 · Aug 29, 2017 · US
Nanotube Solution Treated with Molecular Additive, Nanotube Film Having Enhanced Adhesion Property, and Methods for Forming the Nanotube Solution and the Nanotube Film
US-2017226352-A1 · Aug 10, 2017 · US
Method for cleaning carbon nanotubes and carbon nanotube substrate and uses therefor
US-9695046-B2 · Jul 4, 2017 · US
Methods of making and purifying carbon nanotubes
US-9688537-B2 · Jun 27, 2017 · US
Fabrication and application of nanofiber ribbons and sheets and twisted and non-twisted nanofiber yarns
US-9688536-B2 · Jun 27, 2017 · US
Composition and method for depolymerization of cured epoxy resin materials using transition metal salts
US-2017174523-A1 · Jun 22, 2017 · US
Purified carbon nanotubes
US-9672991-B2 · Jun 6, 2017 · US
Fabrication and application of nanofiber ribbons and sheets and twisted and non-twisted nanofiber yarns
US-2017137290-A1 · May 18, 2017 · US
Method for manufacturing vertically-growing open carbon nanotube thin film
US-2017113933-A1 · Apr 27, 2017 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B32/17?
- CPC C01B32/17 is the Cooperative Patent Classification code for “Chemistry & Metallurgy.”
- How many patents are filed under CPC C01B32/17 (Chemistry & Metallurgy)?
- Our database includes 143 publications tagged with this CPC code.
- Is patent activity under CPC C01B32/17 growing?
- Publication counts under this code: 4 in 2024 vs 6 in 2025 (latest complete years).