An invention "US 7177798 B2 Natural Language Interface Using Constrained Intermediate Dictionary of Results" by ISE professor, Cheng Hsu, and his former graduate student, Veera Boonjing, is at the center of a patent infringement case brought by Rensselaer Polytechnic Institute and Marathon Patent Group over the technology used in the iPhone's Siri app. This case was settled in early June for $24.9M to be shared between Rensselaer and Marathon. More information may be found in the Albany Business Review Article .