SG

Sigrid Maria Roman Gelderland

Philips: 3 patents #1,693 of 7,731Top 25%
Overall (All Time): #1,555,610 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
8274224 Metal halide lamp including ceramic sealing material Theodorus Gerardus Marinus Maria Kappen 2012-09-25
7952285 Metal halide lamp with cerium oxide seal Theodorus Gerardus Marinus Maria Kappen 2011-05-31
6739255 Stamp, method, and apparatus Martin Hillebrand Blees, Peter Slikkerveer 2004-05-25