IH
ir. H.C. de Lange
Delft, 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 · National · Cumulative (20y)Rating
Good Confidence
Archetype
Full-Service Generalist
Distinct Clients
26
Success Rate
100.0%
Volume44
Success53
Speed52
Durability47
RenewalsN/A
Domestic66
Practice profile
Top classes
Furniture(8%) · IPC A47B 88/04Processes(6%) · IPC B01D 33/11Packaging(6%) · IPC B65G 17/08
Top clients
- Jonge Poerink Conveyors B.V.
- Butterfly Housing B.V.
- Varwijk Groep B.V.
- Advies en Ingenieursbureau Daut B.V.
- new aqua GmbH