SAN FRANCISCO, May 19 -- Nufern, an East Granby, Conn., manufacturer of fiber-intensive subassemblies and specialty optical fibers, has licensed a portfolio of patents from United Technologies Corp. (UTC). Nufern made the announcement at the 2004 Conference on Lasers and Electro-Optics/International Quantum Electronics Conference (CLEO/IQEC), being held this week at the Moscone Center West here. 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