Activated carbon, and adsorption filter and water purifier both including same
US-2019291073-A1 · Sep 26, 2019 · US
Activated carbon for adsorbing per- and polyfluoroalkyl compounds in water sample
US12257565B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12257565-B2 |
| Application number | US-202017753081-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 11, 2020 |
| Priority date | Aug 20, 2019 |
| Publication date | Mar 25, 2025 |
| Grant date | Mar 25, 2025 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
[OBJECT] To provide an activated carbon for adsorbing per- and polyfluoroalkyl compounds in a water sample, the activated carbon having a high collection rate of per- and polyfluoroalkyl compounds in a water sample, and a filter body using the same. [ACHIEVING MEANS] An activated carbon for adsorbing per- and polyfluoroalkyl compounds in a water sample to desorbably adsorb per- and polyfluoroalkyl compounds in a water sample, wherein the activated carbon is composed of an activated carbon adsorbent having a BET specific surface area of 800 m 2 /g or more or a surface oxide amount of 0.20 meq/g or less, or alternatively, a BET specific surface area of 800 m 2 /g or more and a surface oxide amount of 0.50 meq/g or less, and wherein a sum (V mic ) of a volume of micropores of 1 nm or less of the activated carbon adsorbent is 0.30 cm 3 /g or more.
First claim
Opening claim text (preview).
The invention claimed is: 1. An activated carbon for adsorbing per- and polyfluoroalkyl compounds in a water sample to desorbably adsorb per- and polyfluoroalkyl compounds in a water sample, wherein the BET specific surface area of an activated carbon adsorbent is 800 m 2 /g or more, and a surface oxide amount of the activate carbon adsorbent is ranged from 0.10 to 0.50 meq/g, and a sum (Vmic) of a volume of the activated carbon adsorbent having a pore size of 1 nm or less is ranged from 0.30 to 0.85 cm 3 /g. 2. The activated carbon for adsorbing per- and polyfluoroalkyl compounds in the water sample according to claim 1 , wherein the activated carbon adsorbent is a fiber-like activated carbon. 3. A filter body for adsorbing per- and polyfluoroalkyl compounds in a water sample, wherein the activated carbon according to claim 1 is retained therein.
Assignees
Inventors
Classifications
containing halogen · CPC title
using inorganic sorbents · CPC title
being more than 1000 m2/g · CPC title
being in the range 500-1000 m2/g · CPC title
Fibres or filaments (fibres or filaments in the form of membranes B01J20/28038; B01J20/28007 takes precedence) · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US12257565B2 cover?
- [OBJECT] To provide an activated carbon for adsorbing per- and polyfluoroalkyl compounds in a water sample, the activated carbon having a high collection rate of per- and polyfluoroalkyl compounds in a water sample, and a filter body using the same. [ACHIEVING MEANS] An activated carbon for adsorbing per- and polyfluoroalkyl compounds in a water sample to desorbably adsorb per- and polyfl…
- Who is the assignee on this patent?
- Futamura Kagaku Kk, Aist
- What technology area does this patent fall under?
- Primary CPC classification B01J20/20. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Mar 25 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).