Inventor · disambiguated record
Willem Van Erk
Also filed as: VAN ERK WILLEM
4 granted patents·27 citations·filing 1994–2008
71Inventor score
Technology areasH01J
Top patents by PatentIndex Score
4 records- 0158US6831414B2High-pressure gas discharge lampKONINKL PHILIPS ELECTRONICS NV·Filed 2002·Granted Dec 14, 2004·7 cites·10 claims
- 0257US5530317AHigh-pressure metal halide discharge lamp with electrodes substantially free of thorium oxidePHILIPS CORP·Filed 1994·Granted Jun 25, 1996·16 cites·16 claims
- 0355US6847167B1High-pressure gas discharge lampKONINKL PHILIPS ELECTRONICS NV·Filed 2000·Granted Jan 25, 2005·4 cites·13 claims
- 0442US8227991B2Metal halide lamp comprising an ionisable salt fillingSTAPPERS OSCAR GERARD·Filed 2008·Granted Jul 24, 2012·0 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →