In a live, expressive combinatorial exchange, each of a plurality of bidders can submit a bid. Based on the submitted bids, an allocation of the bids is determined that is optimal for the type of exchange being conducted. At least a portion of each bid of the allocation is displayed to each bidder of...http://www.google.es/patents/US7499880?utm_source=gb-gplus-sharePatente US7499880 - Dynamic exchange method and apparatus
