Patent · US Expired

Halogen incandescent lamp

US6153974A · kind A · utility

0Cited by

7References

13Claims

0Family size

Assignee

Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH · DE

Inventors

Thomas Noll · Kipfenberg, DE
Karlheinz Vogl · Regensburg, DE
Rudolf Horndasch · Gaimersheim, DE
Matthias Damm · Gaimersheim, DE

Key dates

Filing date	Sep 15, 1999
Grant date	Nov 28, 2000
Priority date	—
Expiry date	Sep 15, 2019

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02B20/00
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

As its filling, a halogen incandescent lamp contains noble gas, halogen additive, carbon as well as nitrogen and oxygen in the form of a nitrogen-oxygen compound, preferably N.sub.2 O.

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