Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9576298 | Coupon copy protection | Ravi Kant Keswani, Manickababu Muthu, Jeffrey Weitzman | 2017-02-21 |
| 9424585 | Coupon copy protection | Ravi Kant Keswani, Manicka Muthugopalakrishna, Jeffrey Weitzman | 2016-08-23 |
| 8559667 | Coupon copy protection | Ravi Kant Keswani, Manicka Muthugopalakrishnan, Jeffrey Weitzman | 2013-10-15 |
| 8000496 | Coupon copy protection | Ravi Kant Keswani, Manicka Muthugopalakrishna, Jeffrey Weitzman | 2011-08-16 |