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PTAB Says Alice Sinks 3 CBOE Options-Trading Patents

By Vin Gurrieri (March 4, 2015, 7:05 PM EST) -- The Patent Trial and Appeal Board on Monday invalidated three Chicago Board Options Exchange Inc. patents at the center of a $525 million suit the CBOE filed against the International Securities Exchange LLC, saying they are invalid under the U.S. Supreme Court's Alice ruling....

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