1. Spatial Error Concealment for Image Processing (with H. Radha), Lucent Technologies (AT&T Bell Labs), US Patent Number 6134352.

2. Device and method for centralized processing of picture-in-picture images (with R. Coutinho, J. Dale, H. Radha), Lucent Technologies, US Patent Number 5,808,659.

3. Aparatus for Estimating Depth of Anesthesia During Surgery (with P. Gifani, S.M. Golpayegani, S. Momenzadeh, M. Ghanbari), SUT, IRI Patent Number 42392.