Geothermal energization of a non-combustion chemical reactor and associated systems and methods
US-9222704-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 | C01B31/02 |
| Official title | — |
| Display label | Chemistry & Metallurgy (mapped technology topic) |
| Total patents | 251 |
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 | 70 |
| 2016 | 78 |
| 2017 | 75 |
| 2018 | 26 |
| 2019 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Electronically conducting carbon and carbon-based material by pyrolysis of dead leaves and other similar natural waste
US-9212285-B2 · Dec 15, 2015 · US
Carbon thin film, mold for molding optical element, and method for manufacturing optical element
US-9206527-B2 · Dec 8, 2015 · US
Positive electrode active material for a lithium secondary battery, method for producing same, and lithium secondary battery comprising same
US-9203077-B2 · Dec 1, 2015 · US
Carbon material and electricity storage device
US-9186680-B2 · Nov 17, 2015 · US
Method for producing carbonaceous film, method for producing graphite film, roll of polymer film, and roll of carbonaceous film
US-9187331-B2 · Nov 17, 2015 · US
Process for the hydrothermal treatment of high molar mass biomaterials
US-2015321173-A1 · Nov 12, 2015 · US
Porous carbon product and method for the production thereof
US-9174878-B2 · Nov 3, 2015 · US
Composition for an Organic Gel and the Pyrolysate Thereof, Production Method Thereof, Electrode Formed by the Pyrolysate and Supercapacitor Containing Same
US-2015299508-A1 · Oct 22, 2015 · US
Method for fabricating carbon allotropes
US-9156695-B2 · Oct 13, 2015 · US
Flame-resistant heat treatment furnace
US-9157679-B2 · Oct 13, 2015 · US
Method and apparatus for extracting a fiber of a wound composite part
US-2015273423-A1 · Oct 1, 2015 · US
Cellular porous monoliths containing condensed tannins
US-2015274921-A1 · Oct 1, 2015 · US
Method of producing amorphous carbon material for the negative electrode of lithium ION secondary battery, and lithium ION secondary battery
US-9147873-B2 · Sep 29, 2015 · US
Carbon material for nonaqueous electrolyte secondary battery and method for manufacturing same, and negative electrode using carbon material and nonaqueous electrolyte secondary battery
US-2015263347-A1 · Sep 17, 2015 · US
Hydrogen storage materials
US-9126834-B2 · Sep 8, 2015 · US
Reactor system for the production of carbon allotropes
US-2015246813-A1 · Sep 3, 2015 · US
Carbon fibers having improved strength and modulus and an associated method and apparatus for preparing same
US-9121112-B2 · Sep 1, 2015 · US
Method for fabricating porous carbon material
US-2015239740-A1 · Aug 27, 2015 · US
Methods for producing precursor solutions and sol-gels for nano-engineered carbon materials and nano-engineered carbon materials created therefrom
US-2015238917-A1 · Aug 27, 2015 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B31/02?
- CPC C01B31/02 is the Cooperative Patent Classification code for “Chemistry & Metallurgy.”
- How many patents are filed under CPC C01B31/02 (Chemistry & Metallurgy)?
- Our database includes 251 publications tagged with this CPC code.
- Is patent activity under CPC C01B31/02 growing?
- Publication counts under this code: 26 in 2018 vs 2 in 2019 (latest complete years).