DuPont Sues Solar Cos. Over Photovoltaic Cell Patent
According to a complaint filed in Oregon federal court, DuPont says SolarWorld has been buying and using silver photovoltaic pastes from Heraeus Materials Technology LLC — also a defendant — that infringe on its patent for the conductive composition.
The suit is the second between DuPont and Heraeus, following a September complaint in which DuPont claimed...
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