Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10150686 | Removal of arsenic from contaminated aqueous solutions | Md. Abdul Halim | 2018-12-11 |
| 10053750 | Recovery of nickel in leaching of laterite ores | Ramamritham Sridhar, 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 | Ramamritham Sridhar, Dipak Patel | 2018-08-07 |
| 9732398 | Chloride process for the leaching of gold | Ramamritham Sridhar, M. A. Halim | 2017-08-15 |
| 9115419 | Process for extraction of rare earth elements | Ramamritham Sridhar, M. A. Halim | 2015-08-25 |
| 8916116 | Separation of iron from value metals in leaching of laterite ores | Ramamritham Sridhar, 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, Ramamritham Sridhar | 2012-12-25 |
| 7968065 | Process for the recovery of value metals from base metal sulfide ores | G. Bryn Harris, Ramamritham Sridhar, Geroge Puvvada | 2011-06-28 |
| 7736606 | Process for the recovery of value metals from base metal sulfide ores | G. Bryn Harris, Ramamritham Sridhar, George Puvvada | 2010-06-15 |
| 7329396 | Process for the recovery of value metals from material containing base metal oxides | G. Bryn Harris, Ramamritham Sridhar | 2008-02-12 |
| 6878356 | Recovery of zinc from galvanized coatings | Ramamritham Sridhar, Mohamed Alam | 2005-04-12 |
| 6730161 | Treatment of fly ash | Ramamritham Sridhar, Noel P. Mailvaganam, V. Mohan Malhotra | 2004-05-04 |
| 6699446 | Methods for separation of titanium from ore | Ramamritham Sridhar, Marc Murray Rishea, Robert Joseph de Laat | 2004-03-02 |
| 6500396 | Separation of titanium halides from aqueous solutions | Ramamritham Sridhar, Marc Murray Rishea, Robert Joseph de Laat | 2002-12-31 |
| 5290525 | Removal of base metals and cyanide from gold-barren CIP solutions | — | 1994-03-01 |
| 4966761 | Process for treatment of flyash | Dzinsars Melnbardis, Robert A. Geisler, Nairn M. McQueen | 1990-10-30 |
| 4798709 | Process for treatment of flyash | Dzinsars Melnbardis, Robert A. Geisler | 1989-01-17 |
| 4537628 | Recovery of precious metals | Jurgen K. Biskupski | 1985-08-27 |