Bioagent air filtration systems
US7625428B2 · kind B2 · utility
0Cited by
34References
95Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 28, 2004 |
| Grant date | Dec 1, 2009 |
| Priority date | — |
| Expiry date | Feb 13, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2257/91
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Generally, systems for air and water purification using unpowered charged sorbent mediums (3) which may include layered double hydroxide (LDH) (1) compositions, lignin (2), and methods of sorbing inorganic or organic material(s) onto such mediums, including anionic contaminants (10), cationic contaminants (11), non-ionic organic contaminants (20), and even biological agents (7) such as bacteria or viruses present in liquids or gases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.