Filtration
US3933629A · kind A · utility
24Cited by
5References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 14, 1974 |
| Grant date | Jan 20, 1976 |
| Priority date | — |
| Expiry date | Jun 14, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S261/72
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
An oxygenation system for promoting the activity of microorganisms supported on a filter bed, by introducing an oxygenated liquid stream into contact with the microorganisms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.