RF

Ralf Sch/a/ fer

U.S. Philips: 1 patents #4,133 of 8,851Top 50%
Overall (All Time): #4,040,912 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4471269 Circuit arrangement for operating a high-pressure gas discharge lamp Hans G. Ganser, Hans Peter Stormberg 1984-09-11