Graphene Oxide/Magnesium Oxide Nanocomposites as Superior Sorbents for Methylene Blue Removal from Aqueous Solutions
US-2017369333-A1 · Dec 28, 2017 · US
Carbon nanostructures, e.g. nanotubes, nanohorns, nanocones, nanoballs (carbon nanotubes per se C01B32/15)
Carbon nanostructures, e.g. nanotubes, nanohorns, nanocones, nanoballs (carbon nanotubes per se C01B32/15) · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B01J20/205 |
| Official title | {Carbon nanostructures, e.g. nanotubes, nanohorns, nanocones, nanoballs (carbon nanotubes per se C01B32/15)} |
| Display label | Carbon nanostructures, e.g. nanotubes, nanohorns, nanocones, nanoballs (carbon nanotubes per se C01B32/15) |
| Total patents | 314 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 18 |
| 2016 | 18 |
| 2017 | 32 |
| 2018 | 47 |
| 2019 | 30 |
| 2020 | 34 |
| 2021 | 36 |
| 2022 | 23 |
| 2023 | 28 |
| 2024 | 19 |
| 2025 | 28 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Metal adsorbent and a method of making thereof
US-2017354948-A1 · Dec 14, 2017 · US
Composite absorbent particles
US-2017339914-A1 · Nov 30, 2017 · US
Method for reducing thiophene in diesel fuel
US-2017321129-A1 · Nov 9, 2017 · US
High temperature layered mixed-metal oxide materials with enhanced stability
US-2017266642-A1 · Sep 21, 2017 · US
Graphene-Based Inorganic-Organic Hybrid Materials and Separation of Racemic Mixtures
US-2017253489-A1 · Sep 7, 2017 · US
Method for desulfurizing diesel fuel
US-2017233663-A1 · Aug 17, 2017 · US
Rapid analysis of steroids and steroid derivatives
US-9733222-B2 · Aug 15, 2017 · US
Integral 3D graphene-carbon hybrid foam and devices containing same
US-2017182474-A1 · Jun 29, 2017 · US
Graphene/Graphite Polymer Composite Foam Derived from Emulsions Stabilized by Graphene Kinetic Trapping
US-2017178762-A1 · Jun 22, 2017 · US
Method for the adsorptive removal of para-xylene and toluene from waste water using modified carbon nanotubes
US-2017165635-A1 · Jun 15, 2017 · US
New class of tunable gas storage and sensor materials
US-2017157590-A1 · Jun 8, 2017 · US
Method for removing sulfur compounds from fuel using an adsorbent
US-9663723-B2 · May 30, 2017 · US
High surface area nano-structured graphene composites and capacitive devices incorporating the same
US-9656862-B2 · May 23, 2017 · US
Graphene/graphite polymer composite foam derived from emulsions stabilized by graphene/graphite kinetic trapping
US-9646735-B2 · May 9, 2017 · US
Cross-linked carbon nanotube networks
US-9643149-B2 · May 9, 2017 · US
Method for cleaning a waste gas from a metal reduction process
US-2017120184-A1 · May 4, 2017 · US
Class of tunable gas storage and sensor materials
US-9616376-B2 · Apr 11, 2017 · US
Method for removing sulfur compounds from fuel using an adsorbent
US-2017058204-A1 · Mar 2, 2017 · US
Adsorption of aromatic hydrocarbons from water using metal oxide impregnated carbon nanotubes
US-2017057839-A1 · Mar 2, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01J20/205?
- CPC B01J20/205 is the Cooperative Patent Classification code for “Carbon nanostructures, e.g. nanotubes, nanohorns, nanocones, nanoballs (carbon nanotubes per se C01B32/15).”
- How many patents are filed under CPC B01J20/205 (Carbon nanostructures, e.g. nanotubes, nanohorns, nanocones, nanoballs (carbon nanotubes per se C01B32/15))?
- Our database includes 314 publications tagged with this CPC code.
- Is patent activity under CPC B01J20/205 growing?
- Publication counts under this code: 19 in 2024 vs 28 in 2025 (latest complete years).