Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10053750 | Recovery of nickel in leaching of laterite ores | Vaikuntam I. Lakshmanan, Md. Abdul Halim, Jonathan Y. Chen, Robert J. DeLaat | 2018-08-21 |
| 10041141 | Process for the separation of iron in extraction of titanium in mixed chloride media | Vaikuntam I. Lakshmanan, Dipak Patel | 2018-08-07 |
| 9732398 | Chloride process for the leaching of gold | Vaikuntam I. Lakshmanan, M. A. Halim | 2017-08-15 |
| 9115419 | Process for extraction of rare earth elements | Vaikuntam I. Lakshmanan, M. A. Halim | 2015-08-25 |
| 8916116 | Separation of iron from value metals in leaching of laterite ores | Vaikuntam I. Lakshmanan, Jonathan Y. Chen, M. A. Halim, Robert J. DeLaat | 2014-12-23 |
| 8337795 | Production of high purity silicon from amorphous silica | Mansoor Barati, Kingsley Kweku Larbi, Raja Roy, Vaikuntam I. Lakshmanan | 2012-12-25 |
| 7968065 | Process for the recovery of value metals from base metal sulfide ores | G. Bryn Harris, Vaikuntam I. Lakshmanan, Geroge Puvvada | 2011-06-28 |
| 7803336 | Process for the recovery of titanium in mixed chloride media | Vaikuntum I. Lakshmanan, G. Bryn Harris, George Puvvada | 2010-09-28 |
| 7736606 | Process for the recovery of value metals from base metal sulfide ores | G. Bryn Harris, Vaikuntam I. Lakshmanan, George Puvvada | 2010-06-15 |
| 7329396 | Process for the recovery of value metals from material containing base metal oxides | G. Bryn Harris, Vaikuntam I. Lakshmanan | 2008-02-12 |
| 6878356 | Recovery of zinc from galvanized coatings | Vaikuntam I. Lakshmanan, Mohamed Alam | 2005-04-12 |
| 6730161 | Treatment of fly ash | Vaikuntam I. Lakshmanan, Noel P. Mailvaganam, V. Mohan Malhotra | 2004-05-04 |
| 6699446 | Methods for separation of titanium from ore | Vaikuntam I. Lakshmanan, Marc Murray Rishea, Robert Joseph de Laat | 2004-03-02 |
| 6500396 | Separation of titanium halides from aqueous solutions | Vaikuntam I. Lakshmanan, Marc Murray Rishea, Robert Joseph de Laat | 2002-12-31 |
| 4358430 | Process for treatment of selenium-bearing materials | Grigori S. Victorovich, Malcolm Charles Evert Bell | 1982-11-09 |