| 2007 | India | IPO No. 1469/DEL/2007 | New method and apparatus for simultaneous generation and detection of the optical diffraction pattern for vibration monitoring | T. Santhanakrishnan and Tatavarti V.S.N. Rao |
| 2008 | USA | US 2010/0321698/A1 | New method and apparatus for simultaneous generation and detection of the optical diffraction pattern for vibration monitoring | T. Santhanakrishnan and Tatavarti V.S.N. Rao |
| 2008 | European Patent Office | EP2160577 (A2) | New method and apparatus for simultaneous generation and detection of the optical diffraction pattern for vibration monitoring | T. Santhanakrishnan and Tatavarti V.S.N. Rao |
| 2008 | International Patent filed in African Countries | PCT No. 1469/IN2008/000444 | New method and apparatus for simultaneous generation and detection of the optical diffraction pattern for vibration monitoring | T. Santhanakrishnan and Tatavarti V.S.N. Rao |
| 2008 | India | IPO No. 1819/DEL/2008 | Opto-electronic system for real time monitoring of motions in stratified fluids | Tatavarti V.S.N. Rao, T. Santhanakrishnan and Praveen Naresh |
| 2008 | USA | US8643846B2 | Method and apparatus for the simultaneous generation and detection of optical diffraction interference pattern on a detector | Thankappan Santhanakrishnan, Tatavarti Venkata Sreerama Narasimha Rao |
| 2010 | India | 2567/CHE/2010 | Method and apparatus for recognition of hand gestures of differently abled persons | M. Rajasekhara Babu, P. Venkata Krishna, B. Ramakrishna Rao, Tatavarti V.S.N. Rao, Shijo, Preetham, Rajesh |
| 2010 | India | IPO No.3597/CHE/2010 | Wireless communication system for automatic operation of routing gates at cross road junctions and for providing advanced alerts of disasters | K. Ganesan and Tatavarti V.S.N. Rao |
| 2020 | USA | 11,957,447 B2 | Systems and methods of use thereof for determining aerosol particle sizes | Tatavarti V.S.N. Rao, Ramana Pidaparti and Sanjay Sarma Oruganti |