Walmart Patent Uses Blockchain to Track Repeat Sales — Coindesk.com

Walmart has applied for a patent that could help it track repeat sales of products to the same customer:

“The document, released last Thursday by the U.S. Patent and Trademark Office, outlines a blockchain ledger which would track the items that stores sell to a particular customer. It’s the latest example of an intellectual property play by Walmart, which has filed a number of related applications and has also piloted the tech for tracking food products. The proposed system would allow a customer to register the item after it’s bought for the first time. The customer would then be able to choose a price for a resale, with the system itself acting essentially as a digital marketplace, according to the application.”

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