Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12227426 | Process for recovery of lithium from a geothermal brine | John L. Featherstone, Paul J. Hanson, Charles R. Marston | 2025-02-18 |
| 11958753 | Process for selective adsorption and recovery of lithium from natural and synthetic brines | Charles R. Marston | 2024-04-16 |
| 11365128 | Process for selective adsorption and recovery of lithium from natural and synthetic brines | Charles R. Marston | 2022-06-21 |
| 10604414 | System and process for recovery of lithium from a geothermal brine | John L. Featherstone, Paul J. Hanson, Charles R. Marston | 2020-03-31 |
| 8702860 | Stabilized kaolin slurry and methods for improving kaolin slurry stability | Jun Yuan, Robert J. Pruett | 2014-04-22 |
| 7780779 | Method for separating mixture of finely divided minerals | Ismail Yildirum, Robert J. Pruett, Johnny W. Larimore | 2010-08-24 |
| 7226005 | Hyperplaty clays and their use in paper coating and filling, methods for making same, and paper products having improved brightness | J. Philip E. Jones, Robert J. Pruett, Jun Yuan, David Cummings, Bomi M. Bilimoria +1 more | 2007-06-05 |
| 7214264 | Hyperplaty clays and their use in paper coating and filling, methods for making same, and paper products having improved brightness | J. Philip E. Jones, Robert J. Pruett, Jun Yuan, David Cummings, Bomi M. Bilimoria +1 more | 2007-05-08 |
| 7208039 | Hyperplaty clays and their use in paper coating and filling, methods for making same, and paper products having improved brightness | J. Philip E. Jones, Robert J. Pruett, Jun Yuan, David Cummings, Bomi M. Bilimoria +1 more | 2007-04-24 |
| 7122080 | Integrated process for simultaneous beneficiation, leaching, and dewatering of kaolin clay suspension | Robert J. Pruett, Jun Yuan, Christopher R. L. Golley | 2006-10-17 |
| 6068693 | Method for separating mixture of finely divided minerals and product thereof | William L. Garforth, Robert J. Pruett, Dona L. Archer, Jun Yuan, H. Vince Brown | 2000-05-30 |