Production of graphenic carbon particles utilizing hydrocarbon precursor materials
US-9221688-B2 · Dec 29, 2015 · 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 | C01B31/0446 |
| Official title | — |
| Display label | Chemistry & Metallurgy (mapped technology topic) |
| Total patents | 214 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 61 |
| 2016 | 64 |
| 2017 | 66 |
| 2018 | 21 |
| 2019 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Process for forming expanded hexagonal layered minerals and derivatives using electrochemical charging
US-9221687-B2 · Dec 29, 2015 · US
Graphene production
US-2015360955-A1 · Dec 17, 2015 · US
Method of making graphene layers, and articles made thereby
US-9214338-B2 · Dec 15, 2015 · US
Graphene manufacturing apparatus and method
US-2015353362-A1 · Dec 10, 2015 · US
Method for manufacturing reduced graphene oxide using solid hydrazine derivative
US-2015344311-A1 · Dec 3, 2015 · US
Wafer scale epitaxial graphene transfer
US-2015336800-A1 · Nov 26, 2015 · US
Graphene sheet, graphene base including the same, and method of preparing the graphene sheet
US-9187332-B2 · Nov 17, 2015 · US
Production of graphene nanoribbons by oxidative anhydrous acidic media
US-2015307357-A1 · Oct 29, 2015 · US
Methods for Synthesizing Graphene from a Lignin Source
US-2015307356-A1 · Oct 29, 2015 · US
Method for fabricating graphene
US-9169568-B2 · Oct 27, 2015 · US
Method and apparatus for manufacturing graphene powder and graphene powder manufactured using the same
US-9162895-B2 · Oct 20, 2015 · US
Ambient solid-state mechano-chemical reactions between nanoscale systems
US-2015291430-A1 · Oct 15, 2015 · US
Method for producing a graphene sheet on a platinum silicide, structures obtained using said method and uses thereof
US-9159550-B2 · Oct 13, 2015 · US
Method of preparing carbon thin film, electronics comprising carbon thin film, and electrochemical device comprising carbon thin film
US-9159924-B2 · Oct 13, 2015 · US
Method for producing graphene, and graphene
US-9156699-B2 · Oct 13, 2015 · US
Process for producing highly conducting graphitic films from graphene liquid crystals
US-2015284253-A1 · Oct 8, 2015 · US
Method for producing graphene by chemical exfoliation
US-9145302-B2 · Sep 29, 2015 · US
Method for preparing graphene and said graphene, electronic device using said graphene
US-2015266740-A1 · Sep 24, 2015 · US
Production of Graphenic Carbon Particles Utilizing Hydrocarbon Precursor Materials
US-2015259211-A9 · Sep 17, 2015 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B31/0446?
- CPC C01B31/0446 is the Cooperative Patent Classification code for “Chemistry & Metallurgy.”
- How many patents are filed under CPC C01B31/0446 (Chemistry & Metallurgy)?
- Our database includes 214 publications tagged with this CPC code.
- Is patent activity under CPC C01B31/0446 growing?
- Publication counts under this code: 21 in 2018 vs 2 in 2019 (latest complete years).