SP
Slenders, Petrus Johannes Waltherus
Netherlands
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IPRATE.EULeading
PATENTS · 2026
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Confidence
High Confidence. The published tier reflects the selected country, vertical, track, and time window.
Vertical
Track
Window
Performance
Patents · European · Cumulative (20y)Rating
High Confidence
Archetype
Focused Practice
Distinct Clients
9
Success Rate
50.8%
Volume74
Success76
Speed23
Durability80
RenewalsN/A
Domestic93
Practice profile
Top classes
Physics(62%) · IPC G03F7/20Plasma(11%) · IPC H05G2/00
Top clients
- ASML Netherlands B.V.
- ASML Netherlands BV
- ASML Holding N.V.
- Koninklijke Philips Electronics N.V.
- Koninklijke Philips N.V.