A data processing system for the management of stock option accounts for a plurality of participants. The system invokes one of several distinct option Plans that govern the transaction choices available to the participants. The governing option plans are defined by the sponsoring company...http://www.google.fr/patents/US5671363?utm_source=gb-gplus-shareBrevet US5671363 - Private stock option account control and exercise system
Private stock option account control and exercise system