Chinese PV maker LONGi scores CAFC win in Hanwha legal battle
The United States Court of Appeals for the Federal Circuit (CAFC) on June 10 upheld a Final Written decision of the Patent Trial and Appeal Board (PTAB) of the United States Patent and Trademark Office (USPTO) invalidating the U.S. Patent No. 9,893,215 held by South Korean photovoltaics (PV) manufac