PD
Patentanwälte Dr. Keller, Schwertfeger Partnerschaft mbB
Landau in der Pfalz, Germany
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IPRATE.EUProven
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 · National · Cumulative (20y)Rating
High Confidence
Archetype
Full-Service Generalist
Distinct Clients
114
Success Rate
44.8%
Volume82
Success73
Speed47
Durability62
RenewalsN/A
Domestic76
Practice profile
Top classes
Operations(2%) · IPC B42D 25/30 (2014.01)Construction(1%) · IPC E03F 5/10 (2006.01)Measuring(1%) · IPC G01F 1/66 (2022.01)
Top clients
- Sensus Spectrum LLC, Raleigh
- Kisters, Friedrich
- Technische Universität Kaiserslautern
- APL Automobil - Prüftechnik Landau GmbH
- Gebr. Pfeiffer SE