A common index fund system and method enables investment in entities that is indexed to a common index, rather than individual company performance. For small business entities, the creation, issuance, trading and management of fund shares as a liquid investment may be accomplished with, for example,...http://www.google.fr/patents/US20040254871?utm_source=gb-gplus-shareBrevet US20040254871 - Common index securities
Numéro de demande: 10/794,465 Numéro de publication: US 2004/0254871 A1 Date de dépôt: 5 mars 2004 Brevet délivré: US7155468 ( Date de délivrance 26 déc. 2006)