The Bureau on registration of patents and trademarks U.S. published application, filed in November last year, the American retail chain Walmart and describing the use of blockchain technology for tracking delivery of goods to a certain buyer.

The proposed application system allows the client to register the purchase after he first purchased a product. However, he may specify an acceptable price for the resale of the product, thus using the system as a digital marketplace.

Recall that Walmart also decided to patent the delivery system of goods with Autonomous vehicles, connected via the blockchain. In addition, a recently published patent application, in which the company proposed to apply blockchain technology to store payment data and protect them from unauthorized access.