Method of preparing heavy oil-derived anisotropic pitch for carbon fiber based on mesogen separation
US-12281262-B2 · Apr 22, 2025 · US
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Working-up pitch, asphalt, bitumen {(compositions of asphalts and other bitumenous materials C08L95/00)}
Working-up pitch, asphalt, bitumen {(compositions of asphalts and other bitumenous materials C08L95/00)} · 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 | C10C3/00 |
| Official title | Working-up pitch, asphalt, bitumen {(compositions of asphalts and other bitumenous materials C08L95/00)} |
| Display label | Working-up pitch, asphalt, bitumen {(compositions of asphalts and other bitumenous materials C08L95/00)} |
| Total patents | 18 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 2 |
| 2017 | 1 |
| 2018 | 2 |
| 2019 | 2 |
| 2020 | 1 |
| 2022 | 2 |
| 2023 | 1 |
| 2024 | 1 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Packaging for solid hydrogen sulfide scavengers
US-12202775-B2 · Jan 21, 2025 · US
Process for the preparation of higher-grade vg bitumens using sulfur-based polymeric additives (sbpa)
US-2024318002-A1 · Sep 26, 2024 · US
Packaging for solid hydrogen sulfide scavengers
US-2023167031-A1 · Jun 1, 2023 · US
Method of preparing heavy oil-derived anisotropic pitch for carbon fiber based on mesogen separation
US-2022135884-A1 · May 5, 2022 · US
Bitumen which is solid at ambient temperature
US-11242287-B2 · Feb 8, 2022 · US
Upgrading challenged feeds and pitches produced therefrom
US-2020181497-A1 · Jun 11, 2020 · US
Integrated thermal processing for mesophase pitch production, asphaltene removal, and crude oil and residue upgrading
US-10508240-B2 · Dec 17, 2019 · US
Bitumen which is solid at ambient temperature
US-2019248705-A1 · Aug 15, 2019 · US
Integrated thermal processing for mesophase pitch production, asphaltene removal, and crude oil and residue upgrading
US-2018362855-A1 · Dec 20, 2018 · US
Apparatus for producing foamed bitumen and method for its maintenance
US-9856611-B2 · Jan 2, 2018 · US
Apparatus for producing foamed bitumen and method for its maintenance
US-9551116-B2 · Jan 24, 2017 · US
Asphalt production from solvent deasphalting bottoms
US-9315733-B2 · Apr 19, 2016 · US
Process for treating a hydrocarbon-based heavy residue
US-2016068760-A1 · Mar 10, 2016 · US
Property prediction for asphalts from blended sources
US-9208266-B2 · Dec 8, 2015 · US
Apparatus For Producing Foamed Bitumen And Method For Its Maintenance
US-2015275442-A1 · Oct 1, 2015 · US
Upgrading properties of asphalts with wax
US-9068129-B2 · Jun 30, 2015 · US
Method of producing anode material for non-aqueous electrolyte secondary battery
US-8945445-B2 · Feb 3, 2015 · US