Patent · US Expired

Spark plug with specific electrode material

US7449823B2 · kind B2 · utility

15Cited by

7References

9Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Lars Menken · Donzdorf, DE
Thomas Kaiser · Köngen, DE
Jochen Boehm · Erbach, DE

Key dates

Filing date	Dec 28, 2005
Grant date	Nov 11, 2008
Priority date	—
Expiry date	Dec 28, 2025

Classification

Technology area (CPC H)Electricity
CPC primaryH01T21/02
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An electrode material based on an alloy or mixed compound, the alloy or mixed compound containing at least two of the elements platinum, palladium, iridium, rhenium, rhodium or ruthenium and, in addition, at least one oxide of the elements zirconium, hafnium, yttrium or magnesium.

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