First solar announces ownership of topcon technology patents, undertakes infringement investigation

Tempe, ariz.--(business wire)-- #americansolar--first solar, inc. (“first solar”) (nasdaq: fslr) today announced its ownership of patents related to the manufacturing of tunnel oxide passivated contact (“topcon”) crystalline-silicon (“c-si”) photovoltaic (“pv”) solar cells. first solar secured the u.s. patent and related international counterparts through its acquisition of tetrasun, inc. (“tetrasun”) and has initiated an investigation of several c-si solar manufacturers for potential infringement of its patent.
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