The Financial Times reports: “Walmart is on track to file more drone patents than Amazon for the second year in a row, as the pair battle for supremacy in the rapidly changing world of retail. The Arkansas-based chain has filed 97 new drone patents with the World Intellectual Property Organisation since July 2018, according to research by accounting firm BDO. In the same period, Amazon registered 54 product ideas. The year before, Walmart submitted 57 patents compared to Amazon’s 54.”

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