ALEXANDRIA, Va., June 19 -- United States Patent no. 12,332,643, issued on June 17, was assigned to International Business Machines Corp. (Armonk, N.Y.).

"Virtual fencing of a contaminated area" was invented by Venkata Vara Prasad Karri (Visakhapatnam, India), Shailendra Moyal (Pune, India), Akash U. Dhoot (Pune, India) and Sarbajit K. Rakshit (Kolkata, India).

According to the abstract* released by the U.S. Patent & Trademark Office: "An approach for a computer program to retrieve historical incident data associated with a contaminated site to predict a future incident at the contaminated site. In the approach, the computer program evaluates the historical incident data to determine a deployment of a plurality of unmanned vehicles to for...