Inventor
VAN SPRANG HENDRIK ADRIANUS
NL6 patents
⚠️ This page may combine multiple inventors who share the name “VAN SPRANG HENDRIK ADRIANUS”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
KONINKL PHILIPS ELECTRONICS NV
3 patentsUS6570302B1May 27, 2003
Electric lamp with light-absorbing medium and interference film
KONINKL PHILIPS ELECTRONICS NV26 citations88
US7453190B2Nov 18, 2008
Electric lamp with absorbing and interference media
KONINKL PHILIPS ELECTRONICS NV5 citations58
US9082937B2Jul 14, 2015
LED module
KONINKL PHILIPS ELECTRONICS NV0 citations49