A system (10) for sorting search results according to a buyer profile (47) during the matching phase of an electronic commerce transaction includes a database containing a buyer profile (47) associated with a buyer (20), the buyer profile (47) comprising a record of the number of times each of multiple...http://www.google.com.tw/patents/US20020174089?utm_source=gb-gplus-share專利 US20020174089 - Facilitating electronic commerce transactions using buyer profiles
