W&
Wenzel & Kalkoff
Dortmund, Germany
Wenzel & Kalkoff is a patent firm in Dortmund, Germany, Rated for european patent work on the cumulative record, one of 4,381 firms filing in Germany, strongest in Vehicles, Necessities and Telecom, acting for NEC Corporation, Hauni Maschinenbau AG and ISE Automotive GmbH.
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IPRATE.EURated
PATENTS · 2026
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
70
Success Rate
50.0%
Volume78
Success80
Speed81
Durability47
RenewalsN/A
Domestic70
Practice profile
Top classes
Vehicles(3%) · IPC B60R21/13Necessities(1%) · IPC A24B3/04Telecom(1%) · IPC H04B7/005
Top clients
- NEC Corporation
- Hauni Maschinenbau AG
- ISE Automotive GmbH
- Hauni Primary GmbH
- Komori Corporation