Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9732398 | Chloride process for the leaching of gold | Vaikuntam I. Lakshmanan, Ramamritham Sridhar | 2017-08-15 |
| 9115419 | Process for extraction of rare earth elements | Vaikuntam I. Lakshmanan, Ramamritham Sridhar | 2015-08-25 |
| 8916116 | Separation of iron from value metals in leaching of laterite ores | Vaikuntam I. Lakshmanan, Ramamritham Sridhar, Jonathan Y. Chen, Robert J. DeLaat | 2014-12-23 |