Uranium Pechiney
Records under this name other than patents Uranium Pechiney holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 4,450,143 | Process for reducing the organic solvent losses in the treatment of a suspension resulting from the acid attack on an ore Term ended Term ended no later than May 22, 2004 · Low confidence | Term ended | Term ended no later than May 22, 2004 | Low confidence |
| US 4,524,001 | Method of purifying uraniferous aqueous solutions Term ended Term ended no later than Jun 18, 2005 · Low confidence | Term ended | Term ended no later than Jun 18, 2005 | Low confidence |
| US 4,613,361 | High-temperature pretreatment by means of an alkaline aqueous solution of ores having an argillaceous gangue containing at least one usable element Term ended Term ended no later than Sep 23, 2006 · Low confidence | Term ended | Term ended no later than Sep 23, 2006 | Low confidence |
| US 4,634,580 | Process for the purification of wet-process phosphoric acid by removal of cadmium Formerly held Term ended Term ended no later than Jan 6, 2007 · Low confidence | Term ended | Term ended no later than Jan 6, 2007 | Low confidence |
| US 4,643,882 | Process for recovery by a solvent of the uranium present in phosphoric acid Term ended Term ended no later than Feb 17, 2007 · Low confidence | Term ended | Term ended no later than Feb 17, 2007 | Low confidence |
| US 4,649,030 | Process for the purification of uraniferous and/or molybendiferous amino organic solutions which contain zirconium and/or hafnium among other impurities Term ended Term ended no later than Mar 10, 2007 · Low confidence | Term ended | Term ended no later than Mar 10, 2007 | Low confidence |
| US 4,675,166 | Process for the selective separation of uranium, zirconium and/or hafnium and/or molybdenum from a carbonated aqueous solution containing same Formerly held Term ended Term ended no later than Jun 23, 2007 · Low confidence | Term ended | Term ended no later than Jun 23, 2007 | Low confidence |
| US 4,702,820 | Pretreatment by alkaline wetting and holding at temperature of natural materials having an argillaceous gangue containing combustible elements Term ended Term ended no later than Oct 27, 2007 · Low confidence | Term ended | Term ended no later than Oct 27, 2007 | Low confidence |
| US 4,714,596 | Process for the recovery in the form of tetravalent fluoride of uranium extracted from phosphate-bearing solutions Term ended Term ended no later than Dec 22, 2007 · Low confidence | Term ended | Term ended no later than Dec 22, 2007 | Low confidence |
| US 4,744,960 | Process for the separation of rare earths and uranium of a UF.sub.4 concentrate and for putting them into useful form Term ended Term ended no later than May 17, 2008 · Low confidence | Term ended | Term ended no later than May 17, 2008 | Low confidence |