A fuzzy alphanumeric search apparatus searches for a search character string (e.g., MPN) in a source character string (CPN) database. The match is fuzzy since it only matches some of the MPN characters (referred to as tokens) against some of the CPN characters. Nearly all part numbers have a base number...http://www.google.es/patents/US7464101?utm_source=gb-gplus-sharePatente US7464101 - Fuzzy alphanumeric search apparatus and method
