WS

Willibrordus Hubertus Martinus Maria Van De Spijker

Philips: 1 patents #3,761 of 7,731Top 50%
PB Philips Lighting Holding B.V.: 1 patents #438 of 962Top 50%
U.S. Philips: 1 patents #4,133 of 8,851Top 50%
Overall (All Time): #1,497,519 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
9754776 Luminescent converter for a phosphor-enhanced light source Cornelia Titia Staats, Gerardus Arnoldus Rita Van Dijk, Rene Theodorus Wegh, Martinus Petrus Joseph Peeters 2017-09-05
7550924 High-pressure discharge lamp having a metal exhaust tube Leo Gustaaf Joanna Emiel Marien, Nancy Jean Caruso, Jean-Francois Lavaud 2009-06-23
5680001 Electric lamp with adhesion layer and interference layer Cornelis Mulder, Cornelis Gerardus Visser 1997-10-21