Weirich; Michael

Patent Applications and Registrations

Patent applications and USPTO patent grants for Weirich; Michael.The latest application filed is for "primary side regulated power supply system with constant current output".

Company Profile

0.6.7

Weirich; Michael - Unterhaching DE

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Primary side regulated power supply system with constant current output Grant 7,525,259 - Weirich April 28, 2	2009-04-28
Primary side regulated power supply system with constant current output App 20070182387 - Weirich; Michael	2007-08-09
Supply circuit, in particular for a discharge lamp Grant 6,914,394 - Weirich July 5, 2	2005-07-05
Operating device for discharge lamps having a preheating device Grant 6,753,659 - Busse , et al. June 22, 2	2004-06-22
Operating device for lamps with a regulated SEPIC converter Grant 6,741,040 - Weirich May 25, 2	2004-05-25
Supply circuit, in particular for a discharge lamp App 20040051479 - Weirich, Michael	2004-03-18
Lamp ballast with SEPIC converter Grant 6,690,122 - Weirich February 10, 2	2004-02-10
Circuit arrangement for operating a fluorescent lamp Grant 6,657,403 - Schemmel , et al. December 2, 2	2003-12-02
Operating device for lamps with a regulated SEPIC converter App 20030155872 - Weirich, Michael	2003-08-21
Operating device for discharge lamps having a preheating device App 20030122499 - Busse, Olaf ; et al.	2003-07-03
Circuit arrangement for operating a fluorescent lamp App 20030011328 - Schemmel, Bernhard ; et al.	2003-01-16
Ballast for gas discharge lamps with shutdown of the filament heating App 20020125807 - Schemmel, Bernhard ; et al.	2002-09-12
Lamp ballast with sepic converter App 20020097011 - Weirich, Michael	2002-07-25

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