Samsung Countersues Ericsson After Failed Licensing Talks

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Samsung Electronics Co. countersued Ericsson AB for patent infringement, claiming it unlawfully used the South Korean phone maker’s technology and breached an agreement.

Asia’s biggest technology company is asking that Ericsson’s lawsuit against it for alleged patent violations be thrown out as the claims are invalid, according to papers filed March 18 in U.S. federal court in Texas.