Eka Nobel Inc.
Records under this name other than patents Eka Nobel Inc. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 6,576,213 | Method of producing chlorine dioxide Formerly held Term ended Term ended Apr 15, 2014 · From the USPTO record | Term ended | Term ended Apr 15, 2014 | From the USPTO record |
| US 4,385,961 | Papermaking Term ended Term ended no later than May 31, 2003 · Low confidence | Term ended | Term ended no later than May 31, 2003 | Low confidence |
| US 4,388,150 | Papermaking and products made thereby Formerly held Term ended Term ended no later than Jun 14, 2003 · Low confidence | Term ended | Term ended no later than Jun 14, 2003 | Low confidence |
| US 4,755,259 | Process for papermaking Term ended Term ended no later than Jul 5, 2008 · Low confidence | Term ended | Term ended no later than Jul 5, 2008 | Low confidence |
| US 4,798,653 | Retention and drainage aid for papermaking Term ended Term ended no later than Jan 17, 2009 · Low confidence | Term ended | Term ended no later than Jan 17, 2009 | Low confidence |
| US 4,964,557 | Bidirectional web guiding system Term ended Term ended no later than Oct 23, 2010 · Low confidence | Term ended | Term ended no later than Oct 23, 2010 | Low confidence |
| US 4,964,954 | Process for the production of paper Term ended Term ended no later than Oct 23, 2010 · Low confidence | Term ended | Term ended no later than Oct 23, 2010 | Low confidence |
| US 4,980,025 | Papermaking process Formerly held Term ended Term ended no later than Dec 25, 2010 · Low confidence | Term ended | Term ended no later than Dec 25, 2010 | Low confidence |
| US 5,009,789 | Method and plant for separation of synthetic water soluble polymers Term ended Term ended no later than Apr 23, 2011 · Low confidence | Term ended | Term ended no later than Apr 23, 2011 | Low confidence |
| US 5,091,166 | Process for the production of chlorine dioxide Formerly held Term ended Term ended no later than Feb 25, 2012 · Low confidence | Term ended | Term ended no later than Feb 25, 2012 | Low confidence |