Inventor · disambiguated record
Wilma Van Es-Spiekman
Also filed as: ES SPIEKMAN WILMA VAN · VAN ES-SPIEKMAN WILMA
5 granted patents·1 pending application·102 citations·filing 1989–2003
82Inventor score
Top patents by PatentIndex Score
6 records- 0178US5604003AOptical information carrierPHILIPS CORP·Filed 1995·Granted Feb 18, 1997·36 cites·9 claims
- 0271US4951292ACoating for DFB/DBR laser diodesPHILIPS CORP·Filed 1989·Granted Aug 21, 1990·24 cites·9 claims
- 0364US5196958AOptical amplifier having gain at two separated wavelengthsPHILIPS CORP·Filed 1990·Granted Mar 23, 1993·28 cites·8 claims
- 0454US5479392APhase change record carries having crystalline nuclei and/or which produce crystallization structures when information is written thereon enabling that information to be more easily erasedPHILIPS CORP·Filed 1994·Granted Dec 26, 1995·8 cites·3 claims
- 0547US5383172AInformation storage system and device for improved erasing of information written on a record carrierPHILIPS CORP·Filed 1993·Granted Jan 17, 1995·6 cites·18 claims
- 0636US2006087948A1Optimized medium with anisotropic dipole emission for fluorescent single or multilayer storageKONINKL PHILIPS ELECTRONICS NV·Filed 2003·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →