MaxiCode
Sign in to saveright|thumb|200px|MaxiCode example. This encodes the string "Wikipedia, the free encyclopedia". MaxiCode is a public-domain, machine-readable symbol system developed by Donald Chandler and Eric Batterman for United Parcel Service (UPS) in 1987. Designed for tracking and managing package shipments, it resembles an Aztec Code or QR code but uses dots in a hexagonal grid instead of square grid. It is standardized under ISO/IEC 16023.