Treating sulfuric acid
US-10138124-B2 · Nov 27, 2018 · US
of sorbents or filter aids comprising free carbon, e.g. activated carbon
of sorbents or filter aids comprising free carbon, e.g. activated carbon · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B01J20/3416 |
| Official title | {of sorbents or filter aids comprising free carbon, e.g. activated carbon} |
| Display label | of sorbents or filter aids comprising free carbon, e.g. activated carbon |
| Total patents | 193 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 13 |
| 2016 | 12 |
| 2017 | 20 |
| 2018 | 20 |
| 2019 | 20 |
| 2020 | 21 |
| 2021 | 16 |
| 2022 | 13 |
| 2023 | 17 |
| 2024 | 20 |
| 2025 | 19 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for removal of fluorinated organics from byproduct anhydrous or aqueous hydrochloric acid in the 1234yf via 1230xa process
US-2018318788-A1 · Nov 8, 2018 · US
Non-scaling wet air oxidation system
US-10099953-B2 · Oct 16, 2018 · US
Temperature controlled adsorption process for recovering condensable components from a gas stream
US-10093877-B2 · Oct 9, 2018 · US
Module for in-line recharging of sorbent materials with optional bypass
US-10071323-B2 · Sep 11, 2018 · US
Hydrogen gas recovery system and hydrogen gas separation and recovery method
US-2018237298-A1 · Aug 23, 2018 · US
Carbon dioxide recovery method and recovery device
US-2018236395-A1 · Aug 23, 2018 · US
Device for dehumidification, electric appliance having a device of this kind and method for dehumidification
US-2018221814-A1 · Aug 9, 2018 · US
Adsorbent for desulfurization of gasoline and method for desulfurization of gasoline
US-10011779-B2 · Jul 3, 2018 · US
Mesoporous Activated Carbon
US-2018178190-A1 · Jun 28, 2018 · US
Methane gas concentration method
US-9944575-B2 · Apr 17, 2018 · US
Module for in-line recharging of sorbent materials with optional bypass
US-9943780-B2 · Apr 17, 2018 · US
Treating sulfuric acid
US-2018079645-A1 · Mar 22, 2018 · US
Mesoporous activated carbon
US-9914110-B2 · Mar 13, 2018 · US
Solid-liquid separation device
US-2018028935-A1 · Feb 1, 2018 · US
Separation of nitrogen from hydrocarbon gas using pyrolyzed sulfonated macroporous ion exchange resin
US-2017368493-A1 · Dec 28, 2017 · US
Activated carbon regeneration method and gold recovery method
US-2017369324-A1 · Dec 28, 2017 · US
Method for recovering gold from activated carbon
US-2017356066-A1 · Dec 14, 2017 · US
Catalytic adsorbents obtained from municipal sludges, industrial sludges, compost and tobacco waste and process for their production
US-9808761-B2 · Nov 7, 2017 · US
Method for a treatment of water by adsorption on active carbon and clarification, and corresponding plant
US-2017297940-A1 · Oct 19, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01J20/3416?
- CPC B01J20/3416 is the Cooperative Patent Classification code for “of sorbents or filter aids comprising free carbon, e.g. activated carbon.”
- How many patents are filed under CPC B01J20/3416 (of sorbents or filter aids comprising free carbon, e.g. activated carbon)?
- Our database includes 193 publications tagged with this CPC code.
- Is patent activity under CPC B01J20/3416 growing?
- Publication counts under this code: 20 in 2024 vs 19 in 2025 (latest complete years).