Inventor · disambiguated record
Derk Ferdinand Walvoort
Also filed as: WALVOORT DERK FERDINAND
3 granted patents·1 pending application·6 citations·filing 2018–2023
61Inventor score
Top patents by PatentIndex Score
4 records- 0187US11728123B2Charged particle blocking element, exposure apparatus comprising such an element, and method for using such an exposure apparatusVAN VEEN ALEXANDER HENDRIK VINCENT·Filed 2021·Granted Aug 15, 2023·2 cites·20 claims
- 0286US11101099B2Charged particle blocking element, exposure apparatus comprising such an element, and method for using such an exposure apparatusASML NETHERLANDS BV·Filed 2018·Granted Aug 24, 2021·4 cites·20 claims
- 0378US12327707B2Charged particle blocking element, exposure apparatus comprising such an element, and method for using such an exposure apparatusASML NETHERLANDS BV·Filed 2023·Granted Jun 10, 2025·0 cites·20 claims
- 0455US2023317402A1Electron-optical assembly comprising electromagnetic shieldingASML NETHERLANDS BV·Filed 2023·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →