Filtration devices
US6797163B2 · kind B2 · utility
36Cited by
10References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2002 |
| Grant date | Sep 28, 2004 |
| Priority date | — |
| Expiry date | Sep 5, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01K63/045
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to filter devices and methods of using such devices for mechanical, chemical and biological filtration pond and/or aquarium water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.