Kortec AG
Records under this name other than patents Kortec AG holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 6,209,288 | Device and process for laying band or strip material Formerly held Lapsed on the fee record Ended Apr 3, 2013 · From the USPTO record | Lapsed on the fee record | Ended Apr 3, 2013 | From the USPTO record |
| US 4,347,079 | Method of operating an open-hearth furnace Term ended Term ended no later than Aug 31, 2002 · Low confidence | Term ended | Term ended no later than Aug 31, 2002 | Low confidence |
| US 4,396,178 | Open-hearth furnace Term ended Term ended no later than Aug 2, 2003 · Low confidence | Term ended | Term ended no later than Aug 2, 2003 | Low confidence |
| US 4,401,466 | Process for protection of nozzles and refractory lining of a vessel for refining molten metal Term ended Term ended no later than Aug 30, 2003 · Low confidence | Term ended | Term ended no later than Aug 30, 2003 | Low confidence |
| US 4,424,955 | Apparatus for treating liquid metal in a vessel Term ended Term ended no later than Jan 10, 2004 · Low confidence | Term ended | Term ended no later than Jan 10, 2004 | Low confidence |
| US 4,555,266 | Method and apparatus for treating liquid metal in a vessel Term ended Term ended no later than Nov 26, 2005 · Low confidence | Term ended | Term ended no later than Nov 26, 2005 | Low confidence |
| US 4,586,897 | Installation including a heating furnace for continuous castings, which are cut to length, from a continuous casting installation Term ended Term ended no later than May 6, 2006 · Low confidence | Term ended | Term ended no later than May 6, 2006 | Low confidence |
| US 4,687,440 | Apparatus for heating charging material Term ended Term ended no later than Aug 18, 2007 · Low confidence | Term ended | Term ended no later than Aug 18, 2007 | Low confidence |
| US 4,736,930 | Closure apparatus for a tap hole Term ended Term ended no later than Apr 12, 2008 · Low confidence | Term ended | Term ended no later than Apr 12, 2008 | Low confidence |
| US 4,852,858 | Charging material preheater for preheating charging material for a metallurgical smelting unit Term ended Term ended no later than Aug 1, 2009 · Low confidence | Term ended | Term ended no later than Aug 1, 2009 | Low confidence |