Activated carbon beads with reduced dust spillage
US-2024391781-A1 · Nov 28, 2024 · US
from waste materials, e.g. tyres or spent sulfite pulp liquor
from waste materials, e.g. tyres or spent sulfite pulp liquor · 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 | C01B32/324 |
| Official title | from waste materials, e.g. tyres or spent sulfite pulp liquor |
| Display label | from waste materials, e.g. tyres or spent sulfite pulp liquor |
| Total patents | 133 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 7 |
| 2017 | 11 |
| 2018 | 6 |
| 2019 | 12 |
| 2020 | 9 |
| 2021 | 12 |
| 2022 | 16 |
| 2023 | 14 |
| 2024 | 20 |
| 2025 | 17 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Carbonaceous material for sodium ion secondary battery negative electrode, and sodium ion secondary battery using carbonaceous material for sodium ion secondary battery negative electrode
US-2021376321-A1 · Dec 2, 2021 · US
Carbon-based porous material and preparation method and use thereof
US-11161745-B2 · Nov 2, 2021 · US
Carbonaceous material and method for producing same, electrode active material for electrochemical devices, electrode for electrochemical devices, and electrochemical device
US-2021269315-A1 · Sep 2, 2021 · US
Lignocellulosic biomass treatment methods and systems for production of biofuels and biochemicals
US-2021269889-A1 · Sep 2, 2021 · US
Biogenic porous carbon silicon dioxide compositions and methods of making and using same
US-2021220801-A1 · Jul 22, 2021 · US
Porous carboxylated jute stick activated carbon
US-2021032113-A1 · Feb 4, 2021 · US
Magnetic composite containing polyethylenimine functionalized actived carbon and methods thereof
US-2021023533-A1 · Jan 28, 2021 · US
Carbon micro-plant
US-2021016244-A1 · Jan 21, 2021 · US
Carbonaceous material for electric double layer capacitors and method for producing same
US-2021020385-A1 · Jan 21, 2021 · US
Carbonaceous material for electric double layer capacitors and method for producing same
US-10879014-B2 · Dec 29, 2020 · US
Process for producing adsorbent including activated carbon
US-10857515-B2 · Dec 8, 2020 · US
Method for manufacturing activated carbon
US-10815127-B2 · Oct 27, 2020 · US
Synthesis of hydrochar from jackfruit
US-2020299598-A1 · Sep 24, 2020 · US
Synthesis of hydrochar from jackfruit
US-2020299597-A1 · Sep 24, 2020 · US
Synthesis of hydrochar from jackfruit
US-2020299596-A1 · Sep 24, 2020 · US
Porous carbon material for electric double-layer capacitor electrode, method of producing the same, and electric double-layer capacitor electrode
US-10629387-B2 · Apr 21, 2020 · US
Synthesis of hydrochar from jackfruit
US-10557098-B1 · Feb 11, 2020 · US
Malic acid and kmno4-based combined and modified cow dung biogas residue hydrochar preparation method
US-2020038834-A1 · Feb 6, 2020 · US
Supercapacitor using porous activated carbon cow dung
US-10504662-B2 · Dec 10, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B32/324?
- CPC C01B32/324 is the Cooperative Patent Classification code for “from waste materials, e.g. tyres or spent sulfite pulp liquor.”
- How many patents are filed under CPC C01B32/324 (from waste materials, e.g. tyres or spent sulfite pulp liquor)?
- Our database includes 133 publications tagged with this CPC code.
- Is patent activity under CPC C01B32/324 growing?
- Publication counts under this code: 20 in 2024 vs 17 in 2025 (latest complete years).