ALEXANDRIA, Va., April 15 -- United States Patent no. 12,602,515, issued on April 14, was assigned to RapidFort Inc. (Sunnyvale, Calif.).

"Instrumentation using access time value" was invented by Mehran Farimani (San Francisco), Rajeev Thakur (Sunnyvale, Calif.) and Chien-Hung Chen (Tainan City, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A computer sets an access time for a set of files to an initial value. Upon accessing a file by a set of executables, the computer sets the access time of the file to a new value. The computer identifies, from the set of files, a subset of files accessed by the set of executables based on the access time of files in the subset being different from the initial valu...