PROMOTION OFFERING SYSTEM ANALYZING COLLECTIONS OF PROMOTIONS | Patent Publication Number 20220164823

US 20220164823 A1
Patent Number-
Application Number17517306
Filled DateNov 2, 2021
Priority DateJun 22, 2012
Publication DateMay 26, 2022
Original Assignee
Current AssigneeGroupon
Inventor/ApplicantsXiaolei LI
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