ALEXANDRIA, Va., April 9 -- United States Patent no. 12,273,426, issued on April 8, was assigned to The Nielsen Co. (US) LLC (New York).

"Methods and apparatus to determine media impressions using distributed demographic information" was invented by Mark Kalus (New York), Ari Paparo (New York) and Kevin Geraghty (Dublin, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Examples to determine media impressions using distributed demographic information are disclosed. An example system includes programmable circuitry to log, at a first Internet domain, a first record for a first website visit by a first client device to a website at a second Internet domain, the first record based on a hypertext transfer pr...