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.:
Date of Patent:
Jul. 10, 2007
Filed:
Jul. 04, 2003
Applicants:
Axel Bunk, München, DE;
Andreas Nittke, Bergheim, DE;
Inventors:
Axel Bunk, München, DE;
Andreas Nittke, Bergheim, DE;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
H01J 17/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
An electric light bulb, in particular a halogen light bulb designed to be operated by mains voltage includes a substantially axially symmetrical bulb and a single-coil filament mounted in the bulb. The filament includes at least one incandescent coil section disposed outside the bulb axis. The incandescent coil is disposed axially in a transparent cylindrical sleeve which has an interference filter that reflects infra-red rays.