ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,536,486, issued on Jan. 27, was assigned to Maplebear Inc. (San Francisco).

"Task unit generation and assignment for online concierge systems" was invented by Amod Mital (Berkeley, Calif.), Sherin Kurian (San Francisco), Kevin Charles Ryan (San Francisco), Shouvik Dutta (Alameda, Calif.), Jason He (Pleasanton, Calif.), Aneesh Mannava (San Francisco), Ralph Samuel (San Francisco), Jagannath Putrevu (Daly City, Calif.), Deepak Tirumalasetty (Castro Valley, Calif.), Krishna Kumar Selvam (Cupertino, Calif.), Wei Gao (Milpitas, Calif.) and Xiangpeng Li (Redmond, Wash.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The online concierge system generates task u...