Inventor · disambiguated record
Petrus J. M. Willemsen
Also filed as: WILLEMSEN PETRUS J M
4 granted patents·31 citations·filing 1979–1982
73Inventor score
Files withPHILIPS CORP4
Top patents by PatentIndex Score
4 records- 0150US4354139ALow-pressure mercury vapor discharge lampPHILIPS CORP·Filed 1980·Granted Oct 12, 1982·13 cites·8 claims
- 0244US4370595ALow-pressure mercury vapor discharge lampPHILIPS CORP·Filed 1980·Granted Jan 25, 1983·11 cites·4 claims
- 0343US4255687ALow pressure mercury vapor discharge lampPHILIPS CORP·Filed 1979·Granted Mar 10, 1981·6 cites·2 claims
- 0424US4445068ALow-pressure mercury vapor discharge lamp with internal glass fibersPHILIPS CORP·Filed 1982·Granted Apr 24, 1984·1 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →