DoorDash Patents

Patent portfolio assigned to DoorDash (verified via public assignee records). Estimated patent count: 339. Leading US food-delivery marketplace. Competitors Uber Eats, Grubhub, Instacart, Postmates, Caviar widely cited. Patents confirmed: GreyB reports ~436 patents globally with ~339 granted; DoorDash Inc is an active assignee on Justia/Google Patents (delivery logistics + autonomous-vehicle filings). patent_count_estimate set to granted count (~339).