Nickel-magnesium loaded biochar-based bifunctional material and preparation method thereof
US-2026048379-A1 · Feb 19, 2026 · US
the starting material being a waste, residue or of undefined composition
the starting material being a waste, residue or of undefined composition · 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 | B01J2220/4875 |
| Official title | the starting material being a waste, residue or of undefined composition |
| Display label | the starting material being a waste, residue or of undefined composition |
| Total patents | 33 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 1 |
| 2017 | 3 |
| 2018 | 5 |
| 2019 | 5 |
| 2020 | 3 |
| 2021 | 2 |
| 2022 | 4 |
| 2023 | 4 |
| 2024 | 4 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for manufacturing coffee activated carbon using coffee waste, coffee activated carbon manufactured using the same, and combi filter for vehicle air conditioning system including coffee activated carbon
US-2024382934-A1 · Nov 21, 2024 · US
Method of characterizing a sorbent
US-2024189796-A1 · Jun 13, 2024 · US
Composite comprising green rust and carbon for environmental remediation
US-11958032-B2 · Apr 16, 2024 · US
Porous polymeric carbon sorbents for co2 capture and methods of making and using same
US-2024100502-A1 · Mar 28, 2024 · US
Method for generating a granular, green sorbent media for filtration of contaminated water by processing aluminum-based drinking water treatment residuals
US-2023405546-A1 · Dec 21, 2023 · US
Treatment method of wastewater containing heterocyclic organics and adsorbing material obtained therefrom
US-11760673-B2 · Sep 19, 2023 · US
Granular green sorbent media for filtration of contaminated water
US-11673114-B2 · Jun 13, 2023 · US
Development of low-cost activated carbon for removal of vocs and pharmaceuticals from residential drinking water
US-2023132360-A2 · Apr 27, 2023 · US
Method of preparing carbon-based sulfur-loading iron-containing adsorbent for mercury removal
US-11420183-B2 · Aug 23, 2022 · US
High permeability media mix (HPMM) for phosphorous and nitrogen removal from contaminated waters
US-11298680-B2 · Apr 12, 2022 · US
Water absorption treatment material and method for manufacturing the same
US-11278868-B2 · Mar 22, 2022 · US
Composite comprising green rust and carbon for environmental remediation
US-2022080381-A1 · Mar 17, 2022 · US
Method for further processing of carbon raw material
US-11090630-B2 · Aug 17, 2021 · US
Development of low-cost activated carbon for removal of vocs and pharmaceuticals from residential drinking water
US-2021246048-A1 · Aug 12, 2021 · US
Method for Generating a Granular, Green Sorbent Media for Filtration of Contaminated Water by Processing Aluminum-Based Drinking Water Treatment Residuals
US-2020316556-A1 · Oct 8, 2020 · US
Method for further processing of carbon raw material
US-2020298200-A1 · Sep 24, 2020 · US
Method of preparing carbon-based sulfur-loading iron-containing adsorbent for mercury removal
US-2020238252-A1 · Jul 30, 2020 · US
Treatment method of wastewater containing heterocyclic organics and adsorbing material obtained therefrom
US-2019367397-A1 · Dec 5, 2019 · US
Dye removal from aqueous compositions
US-10487040-B2 · Nov 26, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01J2220/4875?
- CPC B01J2220/4875 is the Cooperative Patent Classification code for “the starting material being a waste, residue or of undefined composition.”
- How many patents are filed under CPC B01J2220/4875 (the starting material being a waste, residue or of undefined composition)?
- Our database includes 33 publications tagged with this CPC code.
- Is patent activity under CPC B01J2220/4875 growing?
- Publication counts under this code: 4 in 2023 vs 4 in 2024 (latest complete years).