Patent · US Expired

Filter with varying cell channels

US6843822B2 · kind B2 · utility

40Cited by

20References

7Claims

0Family size

Assignee

CORNING INCORPORATED · US

Inventors

Douglas Munroe Beall · Corning, US
Johnny Marcher · Helsinge, DK

Key dates

Filing date	Dec 15, 2003
Grant date	Jan 18, 2005
Priority date	—
Expiry date	Dec 15, 2023

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/24744
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A honeycomb structure which includes an inlet end and an outlet end opposing each other and a plurality of cell channels extending along an axis from the inlet end to the outlet end, the cell channels having non-equal, square cross-sections, and an extrusion die for making the same.

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