ALEXANDRIA, Va., April 9 -- United States Patent no. 12,271,969, issued on April 8, was assigned to 3M Innovative Properties Co. (St. Paul, Minn.).

"Personal protective equipment training system with user-specific augmented reality content construction and rendering" was invented by Claire R. Donoghue (Reading, Great Britain), Christopher P. Henderson (Cumbria, Great Britain), Benjamin W. Watson (Hampshire, Great Britain), Caroline M. Ylitalo (Stillwater, Minn.), Gautam Singh (Woodbury, Minn.), Alexandra R. Cunliffe (St. Paul, Minn.), Deepti Pachauri (Minneapolis) and Jonathan D. Gandrud (Woodbury, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Augmented reality-based training systems that can dynamica...