Patent · US Active

Filter

US9095675B2 · kind B2 · utility

4Cited by

16References

16Claims

0Family size

Assignee

FLODINS FILTER AKTIEBOLAG · SE

Inventors

Claes Stjernfelt · Lysekil, SE
Inger Gundén · Lysekil, SE
Anders Wieselblad · Stockholm, SE

Key dates

Filing date	Jan 26, 2009
Grant date	Aug 4, 2015
Priority date	—
Expiry date	Nov 24, 2029

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M16/1065
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A filter to be used in the expiratory branch of a ventilator, includes a housing arranged with an inlet passage and an outlet passage, a main filter element, a pre-filter member arranged before the main filter element as seen in the flow direction and an air permeable, material capable of collecting medicament droplets in the air stream through the main filter element.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.