WE

Willem Van Erk

Philips: 3 patents #1,693 of 7,731Top 25%
U.S. Philips: 1 patents #4,133 of 8,851Top 50%
Overall (All Time): #1,234,130 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
8227991 Metal halide lamp comprising an ionisable salt filling Oscar Gerard Stappers, Wouter Edgard Koen Broeckx 2012-07-24
6847167 High-pressure gas discharge lamp 2005-01-25
6831414 High-pressure gas discharge lamp Arnoldus Henricus Franciscus Maria Toonders 2004-12-14
5530317 High-pressure metal halide discharge lamp with electrodes substantially free of thorium oxide Martin F. C. Willemsen, Paul D. Goodell, Hui-Meng Chow 1996-06-25