General Mills, Kellogg's Sued Over Packaging Patent

By Cara Salvatore (March 23, 2018, 4:28 PM EDT) -- Principle Packaging LLC filed lawsuits Friday in Delaware federal court against General Mills Inc. and Kellogg Co. for alleged infringement of a patent for a way to seal a food cup, saying the two companies' respective single-serving cereal cups use the described invention....

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