ALEXANDRIA, Va., July 21 -- United States Patent no. 12,688,855, issued on July 21, was assigned to Amazon Technologies Inc. (Seattle).

"Supplemental content output" was invented by Mark Conrad Kockerbeck (Laguna Beach, Calif.), Song Chen (Irvine, Calif.), Aditi Srinivasan (Riverside, Calif.), Ryan Idrogo-Lam (Irvine, Calif.), Jilani Zeribi (Seattle) and John Botros (Newport Beach, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Techniques for generating a personalization identifier that is usable by a skill to customize output of supplemental content to a user, without the skill being able to determine an identity of the user based on the personalization identifier, are described. A personalization id...