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:
Dec. 06, 2005
Filed:
Sep. 21, 2004
Applicant:
Peter Krummel, Traunreut, DE;
Inventor:
Peter Krummel, Traunreut, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F001/00 ; H02M003/335 ;
U.S. Cl.
CPC ...
Abstract
A method for operating at least one low-pressure discharge lamp having heatable lamp electrodes, in which, during the preheating phase of the lamp electrodes, the type of lamp is identified. In this case, the temperature dependence of the electrical resistance of the lamp electrodes is exploited.