An apparatus and method for optical recognition of chemical graphics allows documents containing chemical structures to be optically scanned so that both the text and the chemical structures are recognized. The structures are converted directly into molecular structure files suitable for direct input...http://www.google.es/patents/US5345516?utm_source=gb-gplus-sharePatente US5345516 - Apparatus and method for parsing a chemical string
Apparatus and method for parsing a chemical string