Earlier this month, U.S. Patent No. 9,908,760 was granted to Wal-Mart Stores, Inc. for “Shopping facility assistance systems, devices and methods to drive movable item containers,” which in essence, covers a robot shopping cart. The shopping cart is depicted as a typical cart with a motor attached to the bottom and includes sensors and cameras. The sensing device thereon allows the shopping cart to communicate with a mobile device and help shoppers navigate through the store. Consumers using a “user interface device,” such as a smart phone, can request a cart, which is then fetched via a roaming motor and…
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