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October 15, 2014
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Honorable Edmond E. Chang
Reflects complaints, answers, motions, orders and trial notes entered from Jan. 1, 2011.Additional or older documents may be available in Pacer.
An Illinois federal judge has invalidated four patents the Chicago Transit Authority was accused of infringing with its mass transit payment system, Ventra, after the judge found the patents claimed only abstract ideas.
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