DS
Dipl.-Phys. Spengler, Robert
Germany
Dipl.-Phys. Spengler, Robert is a patent firm in Germany, Rated for european patent work on the cumulative record, one of 4,381 firms filing in Germany, strongest in Agriculture, Construction and Petroleum, acting for Iseki & Co., Ltd., Closed-up Joint-Stock Company Drive and Sokolov, Yuriy Borisovich.
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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
235
Success Rate
49.8%
Volume83
Success76
Speed51
Durability80
RenewalsN/A
Domestic9
Practice profile
Top classes
Agriculture(1%) · IPC A01B33/02Construction(1%) · IPC E03D5/04Petroleum(0%) · IPC C10B55/00
Top clients
- Iseki & Co., Ltd.
- Closed-up Joint-Stock Company Drive
- Sokolov, Yuriy Borisovich
- Brogent Technologies Inc.
- Forpet S.A.R.L.