jfruh writes: The venerable Nortel Networks may have vanished into bankruptcy five years ago, but thanks to U.S. patent law, it can strike back at its old rival Cisco from beyond the grave. Spherix, a Virginia-based 'research company' that bought Nortel's patents in 2009, has filed a federal lawsuit claiming that Cisco has been knowingly violating 11 Nortel patents. 'The vast majority of Cisco's switching and routing revenue from March 2008 until the present is and has been generated by products and services implementing technology that infringes the Asserted Patents,' the lawsuit claims.
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