HS

Holger Spelsberg

📍 Breitscheid, DE: #30 of 54 inventorsTop 60%
Overall (All Time): #3,324,943 of 4,157,543Top 80%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7530837 Electrical junction box for a solar cell module Udo Nieleck, Dirk Quardt, Friedel Wasserfuhr, Zbigniew Zborowski, Wieland Schmidt 2009-05-12