Participants purchase into a given system for a given period of time. Those with investment gains, by definition, are without loss and need no compensation from the system. Those with investment losses are reimbursed by the system according to previously agreed upon terms. Total loss of a given system's...http://www.google.co.uk/patents/US7987133?utm_source=gb-gplus-sharePatent US7987133 - Method and system for insuring against investment loss
