Ludorf; Werner

Patent Applications and Registrations

Patent applications and USPTO patent grants for Ludorf; Werner.The latest application filed is for "method and apparatus for regulating the brightness of light-emitting diodes".

Company Profile

0.9.8

Ludorf; Werner - Ruhpolding DE
Ludorf; Werner - Bergen 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
Dimmable LED power supply with power factor control Grant 9,300,215 - Ludorf March 29, 2	2016-03-29
Method and apparatus for regulating the brightness of light-emitting diodes Grant 9,066,387 - Ludorf June 23, 2	2015-06-23
Method and Apparatus for Regulating the Brightness of Light-Emitting Diodes App 20140285104 - Ludorf; Werner	2014-09-25
Dimmable LED Power Supply with Power Factor Control App 20140226370 - Ludorf; Werner	2014-08-14
Method and apparatus for regulating the brightness of light-emitting diodes Grant 8,749,157 - Ludorf June 10, 2	2014-06-10
Dimmable LED power supply with power factor control Grant 8,698,421 - Ludorf April 15, 2	2014-04-15
Dimmable LED Power Supply with Power Factor Control App 20110266969 - Ludorf; Werner	2011-11-03
Method and Apparatus for Regulating the Brightness of Light-Emitting Diodes App 20110095697 - Ludorf; Werner	2011-04-28
Electronic ballast and operating method for a gas discharge lamp Grant 7,057,358 - Seibt , et al. June 6, 2	2006-06-06
Operating circuit and operating method for a gas discharge lamp App 20050104534 - Ludorf, Werner ; et al.	2005-05-19
Electronic ballast and operating method for a gas discharge lamp App 20050017655 - Seibt, Marco ; et al.	2005-01-27
Drive circuit for light-emitting diodes Grant 6,747,420 - Barth , et al. June 8, 2	2004-06-08
Circuit configuration to operate a gas discharge lamp Grant 6,747,423 - Ludorf June 8, 2	2004-06-08
Drive circuit for light-emitting diodes App 20030117087 - Barth, Alexander ; et al.	2003-06-26
Circuit configuration to operate a gas discharge lamp App 20030025466 - Ludorf, Werner	2003-02-06

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