SP
Spierenburg, Pieter
Zurich, Switzerland
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IPRATE.EUElite
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
Full-Service Generalist
Distinct Clients
52
Success Rate
77.8%
Volume71
Success80
Speed75
Durability80
RenewalsN/A
Domestic70
Practice profile
Top classes
Packaging(3%) · IPC B65D83/66Engineering(2%) · IPC F04C18/02
Top clients
- Georg Utz Holding AG
- Airopack Technology Group B.V.
- Klinger AG
- Villiger Public-Systems GmbH
- Villiger Entsorgungssysteme AG