DK

Dirk Krätzer

SE Sennheiser Electronic: 2 patents #98 of 245Top 40%
Overall (All Time): #2,039,170 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
9184474 Rechargeable battery unit and portable electronic appliance Dirk Reymann, Elmar Schulze, Niels Christian Steen Hansen 2015-11-10
D626504 Accumulator Alexander Gruve, Elmar Schulze, Christoph Greger 2010-11-02