Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9242220 | Dispersed bubble reactor for enhanced gas-liquid-solids contact and mass transfer | Pannalal Vimalchand, Guohai Liu, WanWang Peng | 2016-01-26 |
| 9114350 | Apparatus and methods for regeneration of precipitating solvent | Guohai Liu, Pannalal Vimalchand, WanWang Peng | 2015-08-25 |
| 6475447 | Apparatus and method for treating sesquisulfate waste streams | Raymond Liu, James A. McCann, Robert L. Graff | 2002-11-05 |
| 6126702 | Apparatus and method for treating sesquisulfate waste streams | Raymond Liu, James A. McCann, Robert L. Graff | 2000-10-03 |
| 5582683 | Method for the recovery of chemical values from black liquor in multiple streams of different chemical values | Raymond P. Thorman, M. C. Matthew | 1996-12-10 |
| 4770742 | Method for increasing the efficiency of a causticizing process | — | 1988-09-13 |