ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,443,971, issued on Oct. 14, was assigned to The Nielsen Co. (US) LLC (New York).

"Methods, systems, apparatus and articles of manufacture to determine causal effects" was invented by Michael Sheppard (Holland, Mich.), Ludo Daemen (Duffel, Belgium), Edward Murphy (North Stonington, Conn.) and Remy Spoentgen (Tampa, Fla.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods, systems, apparatus, and articles of manufacture to determine causal effects are disclosed herein. An example apparatus includes a weighting engine to calculate a first set of weights corresponding to a first treatment dataset, a second set of weights corresponding to a second treatme...