Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9756189 | Method and system for routing and security for telephone calls over a packet-switched network | Saswata Bhattacharya, Mahendra Pratap, Harvey S. Schultz, Quan Li | 2017-09-05 |
| 8982875 | Method and system for routing and security for telephone calls over a packet-switched network | Saswata Bhattacharya, Mahendra Pratap, Harvey S. Schultz, Quan Li | 2015-03-17 |
| 8254371 | Method and system for routing and security for telephone calls over a packet-switched network | Saswata Bhattacharya, Mahendra Pratap, Harvey S. Schultz, Quan Li | 2012-08-28 |
| 6584094 | Techniques for providing telephonic communications over the internet | Mahendra Pratap, Dennis Specht | 2003-06-24 |