Eka AB
Records under this name other than patents Eka AB holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
Showing 1 to 10 of 10 · Back to Eka AB
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 4,294,885 | Surface-modified pigment of natural kaolin material and a process of producing same Term ended Term ended no later than Oct 13, 2001 · Low confidence | Term ended | Term ended no later than Oct 13, 2001 | Low confidence |
| US 4,311,553 | Method for use in the defibration or refining of lignocellulose-containing fibrous materials Term ended Term ended no later than Jan 19, 2002 · Low confidence | Term ended | Term ended no later than Jan 19, 2002 | Low confidence |
| US 4,357,454 | Binder Formerly held Term ended Term ended no later than Nov 2, 2002 · Low confidence | Term ended | Term ended no later than Nov 2, 2002 | Low confidence |
| US 4,409,117 | Detergent compositions stable to chlorine separation, and agents for producing same Formerly held Term ended Term ended no later than Oct 11, 2003 · Low confidence | Term ended | Term ended no later than Oct 11, 2003 | Low confidence |
| US 4,503,028 | Method in the production of hydrogen peroxide Formerly held Term ended Term ended no later than Mar 5, 2005 · Low confidence | Term ended | Term ended no later than Mar 5, 2005 | Low confidence |
| US 4,541,997 | Process of reducing the oxygen content in gas mixtures Formerly held Term ended Term ended no later than Sep 17, 2005 · Low confidence | Term ended | Term ended no later than Sep 17, 2005 | Low confidence |
| US 4,552,748 | Method in the production of hydrogen peroxide Formerly held Term ended Term ended no later than Nov 12, 2005 · Low confidence | Term ended | Term ended no later than Nov 12, 2005 | Low confidence |
| US 4,600,735 | Soil-repellent coating composition Term ended Term ended no later than Jul 15, 2006 · Low confidence | Term ended | Term ended no later than Jul 15, 2006 | Low confidence |
| US 4,756,799 | Method of manufacturing bleached chemimechanical and semichemical fibre pulp by means of a one-stage impregnation process Term ended Term ended no later than Jul 12, 2008 · Low confidence | Term ended | Term ended no later than Jul 12, 2008 | Low confidence |
| US 4,900,399 | Method of manufacturing bleached chemi-mechanical and semichemical fibre pulp by a two-stage impregnation process Term ended Term ended no later than Feb 13, 2010 · Low confidence | Term ended | Term ended no later than Feb 13, 2010 | Low confidence |