First Patent Filed By Companies - Walmart (Wal-Mart Stores, Inc.)

A Quick look at the earliest patent and the latest patent filed by Walmart indicate the thinking shift that must've gone through the organization.

And this shift is inevitable, in the face of increased competition, revenue, technology complexity, and so on.

One of the earliest filings of Walmart is a design patent for a shoe box
Convertible shoe box and display platform - Full Text here
One of the latest filings is

Fraud Prevention Systems And Methods For A Price Comparison System - Full Text here