Filter media and system using the same
US11921046B2 · kind B2 · utility
0Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2020 |
| Grant date | Mar 5, 2024 |
| Priority date | — |
| Expiry date | Nov 26, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2239/1216
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In some examples, a method of making a filter includes heating a metal substrate to precipitate a first phase on a surface of the metal substrate from a metal alloy, the metal substrate defining a plurality of apertures configured to allow a gas to pass through the apertures. The metal substrate is the metal alloy including a first metal and a second metal. The method further includes growing a plurality of carbon nanotubes (CNTs) on the surface of the first metal of the first phase, and the CNTs are configured to capture at least one particle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.