Inventor · disambiguated record
Lodewijk J. Van Ruyven
Also filed as: VAN RUYVEN LODEWIJK · VAN RUYVEN LODEWIJK J · VAN RUYVEN LODEWIJK JOHAN
6 granted patents·203 citations·filing 1979–1997
86Inventor score
Files withPHILIPS CORP5
Top patents by PatentIndex Score
6 records- 0189US4644553ASemiconductor laser with lateral injectionPHILIPS CORP·Filed 1984·Granted Feb 17, 1987·46 cites·8 claims
- 0285US4295152AOptical coupler with a housing permitting adjustment of the distance between the light source and the lensPHILIPS CORP·Filed 1979·Granted Oct 13, 1981·53 cites·8 claims
- 0371US4476563ASemiconductor laser having at least two radiation beams, and method of manufacturing samePHILIPS CORP·Filed 1982·Granted Oct 9, 1984·20 cites·13 claims
- 0463US5729334AFraud-proof identification systemFiled 1997·Granted Mar 17, 1998·67 cites·16 claims
- 0552US4645915ABar code readerPHILIPS CORP·Filed 1984·Granted Feb 24, 1987·12 cites·6 claims
- 0633US4952015ARadiation coupling devicePHILIPS CORP·Filed 1989·Granted Aug 28, 1990·5 cites·6 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →