A technique for customizing mailed purchase incentives for selected consumer households, based on a detailed purchasing history of the consumers. Purchase transactions of many consumers, generally in different stores, are accumulated in a purchase history database over a long period of time and then...http://www.google.se/patents/US6026370?utm_source=gb-gplus-sharePatent US6026370 - Method and apparatus for generating purchase incentive mailing based on prior purchase history
