ALEXANDRIA, Va., April 9 -- United States Patent no. 12,271,934, issued on April 8, was assigned to GOOGLE LLC (Mountain View, Calif.).

"Enhancing functionalities of virtual assistants and dialog systems via plugin marketplace" was invented by Ilya Gennadyevich Gelfenbeyn (Sunnyvale, Calif.), Artem Goncharuk (Mountain View, Calif.) and Pavel Aleksandrovich Sirotin (Sunnyvale, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for enhancing dialog systems is disclosed herein. The method may include maintaining an online marketplace that may have a plurality of dialog system extension elements. The plurality of dialog system extension elements may include at least one of a dialog system plugin, a d...