STAMFORD, Conn.--(BUSINESS WIRE)--Walker Innovation Inc. (OTCQB:PPRO) (“Walker Innovation”), an intellectual property company that launched Haystack IQ™, its Big Data-driven subscription service that makes the economic benefits of America’s patent database available to companies of all sizes, today announced that it will change the ticker symbol of its common stock listed on the OTCQB from “PPRO” to “WLKR”. The change will become effective at the start of trading on August 12, 2015. About Walke
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