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Patent portfolio assigned to SERV (verified via public assignee records). SERV = Serve Robotics Inc. (Nasdaq: SERV), autonomous sidewalk delivery, spun out of Uber in 2021. Customers/partners Uber Eats, Shake Shack and 7-Eleven confirmed via PR Newswire (fetched); DoorDash confirmed via TechCrunch (fetched), which also names Coco as a competing sidewalk-bot startup. Serve Robotics Inc. holds patents (Google Patents/Justia assignee, e.g. delivery-robot cargo-bin and ground light-projection patents); exact count not isolated so estimate left 0.