Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7613213 | Time multiplexed SONET line processing | Kumar Shakti Singh, Chitra Wadhwa, Sachin Mathur, Ashis Maitra, Amandeep Singh Gujral +2 more | 2009-11-03 |
| 6539023 | Methods and apparatus for handling maintenance messages in extended superframe T1 telephone circuits | William G. Bartholomay, Santanu Bhattacharya, Balaraj Vishnu Varthanan | 2003-03-25 |
| 6456595 | Alarm indication signal detection in the presence of special line codes in DS1 (T1) telephone circuits | William G. Bartholomay, Santanu Bhattacharya, Balaraj Vishnu Varthanan | 2002-09-24 |