Filter material
US6403197B1 · kind B1 · utility
9Cited by
5References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 2, 1999 |
| Grant date | Jun 11, 2002 |
| Priority date | — |
| Expiry date | Sep 2, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24702
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filter material laid in folds in a plurality of folds, characterized in that the folds are provided with at least one bending portion having a bending resistance moment that is reduced in comparison with the remaining portions and a method and apparatus for producing same.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.