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Ex Materia
Guyancourt, France
Ex Materia is a patent firm in Guyancourt, France, Rated for european patent work on the cumulative record, one of 1,158 firms filing in France, strongest in Engineering, acting for Gaztransport et Technigaz, Saint-Gobain Isover and Volvo Truck Corporation.
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IPRATE.EURated
PATENTS · 2026
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
Full-Service Generalist
Distinct Clients
42
Success Rate
79.6%
Volume79
Success61
Speed39
DurabilityN/A
RenewalsN/A
Domestic76
Practice profile
Top classes
Engineering(4%) · IPC F17C13/00
Top clients
- Gaztransport et Technigaz
- Saint-Gobain Isover
- Volvo Truck Corporation
- Saint-Gobain Placo
- Safier Ingenierie