Systems and Methods for Producing Carbon Solids
US-2024417566-A1 · Dec 19, 2024 · US
Treatment of carbon black {; Purification}
Treatment of carbon black {; Purification} · 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 | C09C1/56 |
| Official title | Treatment of carbon black {; Purification} |
| Display label | Treatment of carbon black {; Purification} |
| Total patents | 279 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 29 |
| 2016 | 27 |
| 2017 | 31 |
| 2018 | 27 |
| 2019 | 29 |
| 2020 | 27 |
| 2021 | 15 |
| 2022 | 26 |
| 2023 | 24 |
| 2024 | 24 |
| 2025 | 14 |
| 2026 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Surface modified carbon black to simultaneously improve rolling resistance, wet traction, and wear resistance
US-12116485-B2 · Oct 15, 2024 · US
Surface modified carbon black to simultaneously improve rolling resistance, wet traction, and wear resistance
US-2024263014-A1 · Aug 8, 2024 · US
Adducts between carbon allotropes and serinol derivatives
US-2017275169-A1 · Sep 28, 2017 · US
Carbon black
US-9522990-B2 · Dec 20, 2016 · US
High structure carbon blacks
US-2016355686-A1 · Dec 8, 2016 · US
Method of making electrophoretic dispersion
US-2016333185-A1 · Nov 17, 2016 · US
Carbon coated particles
US-2016319110-A1 · Nov 3, 2016 · US
Method of preparing a pigment press cake and uses thereof
US-9458321-B2 · Oct 4, 2016 · US
Production process for self-dispersible pigment, self-dispersible pigment, ink, ink cartridge and ink jet recording method
US-9458323-B2 · Oct 4, 2016 · US
Electrophoretic dispersion
US-9428649-B2 · Aug 30, 2016 · US
Polymer coated toner pigments for electrophotographic printing
US-9423709-B2 · Aug 23, 2016 · US
Antifouling film, air blower blade provided with same, air blower, and antifouling coating material
US-9410048-B2 · Aug 9, 2016 · US
Production process for self-dispersible pigment, self-dispersible pigment, ink, ink cartridge and ink jet recording method
US-9403989-B2 · Aug 2, 2016 · US
Insulated ultrafine powder, method for producing same, and high dielectric constant resin composite material
US-9394447-B2 · Jul 19, 2016 · US
High structure carbon blacks
US-9388300-B2 · Jul 12, 2016 · US
Silane-containing pigment particles for electrophoretic display
US-9382427-B2 · Jul 5, 2016 · US
Particles for electrophoretic displays
US-2016177103-A1 · Jun 23, 2016 · US
Process for manufactuing a filled polymeric materials with modified filler particles
US-9371425-B2 · Jun 21, 2016 · US
Method for manufacturing carbon carrier-metal nanoparticle composite and carbon carrier-metal nanoparticle composite manufactured thereby
US-2016163411-A1 · Jun 9, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C09C1/56?
- CPC C09C1/56 is the Cooperative Patent Classification code for “Treatment of carbon black {; Purification}.”
- How many patents are filed under CPC C09C1/56 (Treatment of carbon black {; Purification})?
- Our database includes 279 publications tagged with this CPC code.
- Is patent activity under CPC C09C1/56 growing?
- Publication counts under this code: 24 in 2024 vs 14 in 2025 (latest complete years).