ALEXANDRIA, Va., March 12 -- United States Patent no. 12,250,297, issued on March 11, was assigned to Stealth Software Technologies Inc. (Los Angeles).

"Apparatus and method for secure merging of lists using only local computations at each of two machines and communications solely between the two machines" was invented by Brett Hemenway Falk (Philadelphia), Rafail Ostrovsky (Santa Monica, Calif.) and Rohit Nema (Los Angeles).

According to the abstract* released by the U.S. Patent & Trademark Office: "Non-transitory computer readable storage mediums have instructions executed by processors to convert a first list at a first server into a first encrypted, permuted list with first dummy data elements and form a first encrypted linked list of...