GD
Gambell, Derek
United Kingdom
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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
Distinct Clients
44
Success Rate
42.6%
Volume73
Success73
Speed70
Durability74
RenewalsN/A
Domestic22
Practice profile
Top clients
- Entegris, Inc.
- EMD Millipore Corporation
- Millipore Corporation
- Polnox Corporation
- Boston-Power, Inc.