DL
de Lang, Robbert-Jan
Rijswijk, Netherlands
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IPRATE.EUProven
PATENTS · 2026
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Confidence
Good Confidence. The published tier reflects the selected country, vertical, track, and time window.
Vertical
Track
Window
Performance
Patents · European · Cumulative (20y)Rating
Good Confidence
Archetype
Focused Practice
Distinct Clients
27
Success Rate
46.3%
Volume67
Success69
Speed31
Durability71
RenewalsN/A
Domestic34
Practice profile
Top classes
Biotech(23%) · IPC C12Q1/68Chemistry(2%) · IPC C02F1/469
Top clients
- Keygene N.V.
- Kureha Corporation
- Ultimorphix Technologies B.v.
- Avantor Performance Materials, Inc.
- Avantium International B.V.