ALEXANDRIA, Va., June 25 -- United States Patent no. 12,338,588, issued on June 24, was assigned to Purdue Research Foundation (West Lafayette, Ind.).

"Phase transforming cellular matrix (PXCM) based tile design for a lightweight runway mat" was invented by Pablo Zavattieri (West Lafayette, Ind.), Scott Hartford (South Bend, Ind.) and Kristiaan Hector (Shelby Township, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A flexible mat system, including a plurality of base platforms, each respective base platform having a first pattern of phase transforming columns and voids extending from a respective flat member, and a plurality of plane-engaging runway platforms, each respective plane-engaging runway plat...