Methods and apparatus for enhancing the energy content of carbonaceous materials from pyrolysis
US-9845440-B2 · Dec 19, 2017 · US
Active carbon
Active carbon · 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 | C01B32/30 |
| Official title | Active carbon |
| Display label | Active carbon |
| Total patents | 273 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 19 |
| 2016 | 28 |
| 2017 | 32 |
| 2018 | 23 |
| 2019 | 38 |
| 2020 | 26 |
| 2021 | 18 |
| 2022 | 22 |
| 2023 | 28 |
| 2024 | 21 |
| 2025 | 16 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Positive electrode for rechargeable lithium battery and rechargeable lithium battery including same
US-2017346070-A1 · Nov 30, 2017 · US
Preparation of polymeric resins and carbon materials
US-2017316888-A1 · Nov 2, 2017 · US
Adsorbent for oral administration, agent for treating renal disease, and agent for treating liver disease
US-2017252370-A1 · Sep 7, 2017 · US
Gyroidal mesoporous carbon materials and methods thereof
US-9714173-B2 · Jul 25, 2017 · US
Methods for making wet gels and dried gels therefrom
US-2017190826-A1 · Jul 6, 2017 · US
Vacuum insulation panel comprising an organic aerogel
US-2017165946-A1 · Jun 15, 2017 · US
Alkylated cyclodextrin compositions and processes for preparing and using the same
US-2017158781-A1 · Jun 8, 2017 · US
Preparation of polymeric resins and carbon materials
US-2017152340-A1 · Jun 1, 2017 · US
Activated Carbons From Dairy Products
US-2017140881-A1 · May 18, 2017 · US
High surface area carbon materials and methods for making same
US-9640333-B2 · May 2, 2017 · US
Storage and stabilization of acetylene
US-9630895-B2 · Apr 25, 2017 · US
Porous carbon, method for manufacturing porous carbon, and adsorption/desorption apparatus using porous carbon
US-2017021330-A1 · Jan 26, 2017 · US
Carbon materials comprising enhanced electrochemical properties
US-2016372750-A1 · Dec 22, 2016 · US
High surface area carbon and process for its production
US-9517445-B2 · Dec 13, 2016 · US
Generating three-dimensional objects
US-2016332374-A1 · Nov 17, 2016 · US
Alkylated cyclodextrin compositions and processes for preparing and using the same
US-9493582-B2 · Nov 15, 2016 · US
Method of preparing active carbon and active carbon prepared by the same
US-2016326000-A1 · Nov 10, 2016 · US
Carbon nanosheets
US-9478365-B2 · Oct 25, 2016 · US
Emulsion and suspension polymerization processes, and improved electrochemical performance for carbon derived from same
US-9464162-B2 · Oct 11, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B32/30?
- CPC C01B32/30 is the Cooperative Patent Classification code for “Active carbon.”
- How many patents are filed under CPC C01B32/30 (Active carbon)?
- Our database includes 273 publications tagged with this CPC code.
- Is patent activity under CPC C01B32/30 growing?
- Publication counts under this code: 21 in 2024 vs 16 in 2025 (latest complete years).