Weak ion exchange particulate medium prepared from phenol-containing organic matter for anions contained in aqueous solutions
US-11684912-B2 · Jun 27, 2023 · US
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Carbon, coal or tar
Carbon, coal or tar · 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 | B01J41/18 |
| Official title | Carbon, coal or tar |
| Display label | Carbon, coal or tar |
| Total patents | 7 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2017 | 1 |
| 2018 | 1 |
| 2020 | 2 |
| 2023 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Weak ion exchange particulate medium prepared from phenol-containing organic matter for anions contained in aqueous solutions
US-2020324281-A1 · Oct 15, 2020 · US
Weak ion exchange particulate medium prepared from phenol-containing organic matter for anions contained in aqueous solutions
US-10722878-B1 · Jul 28, 2020 · US
Microwave assisted synthesis of metal dioxide based hybrid media
US-9878320-B2 · Jan 30, 2018 · US
Method and system of enhancing removal of toxic anions and organic solutes in sorbent dialysis
US-9616163-B2 · Apr 11, 2017 · US
Purifier for removing hydrogen fluoride from electrolytic solution
US-9023204-B2 · May 5, 2015 · US
Method And System Of Enhancing Removal Of Toxic Anions And Organic Solutes In Sorbent Dialysis
US-2015021271-A1 · Jan 22, 2015 · US