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Hilmar Darrelmann

PG Piller Group Gmbh: 2 patents #2 of 17Top 15%
📍 Osterode, DE: #18 of 71 inventorsTop 30%
Overall (All Time): #1,592,873 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
7038330 Protection for wind power station Bernd Rosebrock, Uwe Schrader-Hausmann, Reinhard Engelhardt, Detlev Seidel, Armin Klauenberg +1 more 2006-05-02
6424057 Uninterruptible power supply (UPS) system with primary air cooling Ralf Briest, Norbert Ueffing 2002-07-23
6023152 System for stabilizing a power supply system Ralf Briest, Klaus Sachs, Uwe Schrader-Hausmann 2000-02-08