21 June 2012 19:06 [Source: ICIS news]
HOUSTON (ICIS)--DuPont has filed a lawsuit against the US affiliates of two German firms, alleging violation of a patent relating to photovoltaic (PV) technology, the US-based chemicals major said on Thursday.
DuPont alleges that materials firm Heraeus and solar panels producer SolarWorld, in manufacturing and selling front-side silver pastes, are infringing a DuPont patent related to front-side metallisation paste compositions used in solar-cell technology, it said.
In a complaint filed with the US Federal Court for the District of Oregon, DuPont said it is seeking damages from the two defendants, but it did not say how much money it expects to recover.
"DuPont invests significant resources in scientific innovation to solve global challenges and we protect that knowledge through strong and robust patents," David Miller, president of DuPont’s electronics and communications business, said in a statement.
"The advances we have made in the field of front- and back-side metallisation contacts have resulted in significant efficiency gains for solar cell technology,” Miller added.
Media officials at Heraeus and SolarWorld were not immediately available for comment.
Heraeus Materials is focused on making high-tech industrial products from precious metals. The ?xml:namespace>
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