Qualcomm steps up legal battle with Apple, asks iPhone ban

Qualcomm on Thursday escalated its legal battle with Apple, filing a patent infringement lawsuit and requesting a ban on the importation of some iPhones, claiming unlawful and unfair use of the chipmaker's technology.

California jury has questions in smartphone case

Silicon Valley jurors deciding a patent-infringement lawsuit involving smartphone giants Apple and Samsung have submitted questions Wednesday to a judge just a few hours after beginning their first full day of deliberations.

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