ALEXANDRIA, Va., April 2 -- United States Patent no. 12,265,980, issued on April 1, was assigned to Maplebear Inc. (San Francisco).

"Using a predictive model to identify context features causing above-average tip amount" was invented by Shuo Feng (Issaquah, Wash.), Chia-Eng Chang (Campbell, Calif.), Aoshi Li (Toronto), Pak Hong Wong (Vancouver, Canada), Leo Kwan (Flushing, N.Y.), Mengyu Zhang (Chestnut Hill, Mass.), Van Nguyen (Brooklyn, N.Y.), Aman Jain (Barrie, Canada), Ziwei Shi (San Francisco), Ajay Pankaj Sampat (San Francisco) and Rucheng Xiao (Chicago).

According to the abstract* released by the U.S. Patent & Trademark Office: "An online system receives information describing an order placed by a user of the online system and a set...