logo

For the Inventor, By the Inventor

The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 6123076 B1

PDFFull Text
Date of Patent:
Sep. 26, 2000

Filed:

May. 08, 1998

Hydrophobic barrier for filters and filter media

Applicant:
Inventors:

Keith A Roberts, St. Paul, MN (US);

Michael R Spearman, The Woodlands, TX (US);

John H Burban, Lake Elmo, MN (US);

Majid Zia, White Bear Township, MN (US);

Rochelle M Mickschl, St. Paul, MN (US);

Assignee:

Porous Media Corporation, St. Paul, MN (US);

Attorney:

Marshall & Melhorn

Primary Examiner:

Aaron J Lewis

Assistant Examiner:

Teena Mitchell

Int. Cl.
CPC ...
A62B / ;
U.S. Cl.
CPC ...
12820529 ; 12820527 ;
Abstract

A filter is disclosed having a layer of electret filter media or triboelectric filter media immediately adjacent or in intimate contact with one, or both sides, of a layer of hydrophobic media. Such filter is placed in communication with the upstream and/or downstream side of a mechanical electronic or electrostatic filter to solve problems present in the prior art. Additionally, a medical ventilator filter and system using such a filter is disclosed.

Find Patent Forward Citations

Roberts, Keith. (2000). Hydrophobic barrier for filters and filter media (U.S. Patent No. 6123076). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6123076

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…