Thyssenkrupp Engineering AG
Records under this name other than patents Thyssenkrupp Engineering AG 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 Thyssenkrupp Engineering AG
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 4,750,553 | Heat exchanger for cooling solid substance-containing gas Term ended Term ended no later than Jun 14, 2008 · Low confidence | Term ended | Term ended no later than Jun 14, 2008 | Low confidence |
| US 4,770,749 | Coke oven door Term ended Term ended no later than Sep 13, 2008 · Low confidence | Term ended | Term ended no later than Sep 13, 2008 | Low confidence |
| US 5,017,270 | Method of reducing nox-content in flue gas during heating of coking oven Term ended Term ended no later than May 21, 2011 · Low confidence | Term ended | Term ended no later than May 21, 2011 | Low confidence |
| US 5,062,925 | Method of reducing the nitrogen dioxide content of flue gas from a coke oven with dual heating flues by a combination of external flue gas feed back and internal flue gas recirculation Term ended Term ended no later than Nov 5, 2011 · Low confidence | Term ended | Term ended no later than Nov 5, 2011 | Low confidence |
| US 5,107,055 | Method for simultaneous recovery of pure benzene and pure toluene Term ended Term ended no later than Apr 21, 2012 · Low confidence | Term ended | Term ended no later than Apr 21, 2012 | Low confidence |
| US 5,306,396 | Leveling door Term ended Term ended no later than Apr 26, 2014 · Low confidence | Term ended | Term ended no later than Apr 26, 2014 | Low confidence |
| US 5,443,694 | Method of restoring heating walls of coke oven battery Term ended Term ended no later than Aug 22, 2015 · Low confidence | Term ended | Term ended no later than Aug 22, 2015 | Low confidence |
| US 5,658,434 | Coke-oven door assembly Term ended Term ended no later than Aug 19, 2017 · Low confidence | Term ended | Term ended no later than Aug 19, 2017 | Low confidence |
| US 5,705,037 | Device for reducing the concentration of CO in the waste gas from coke oven batteries that are heated with lean gas Term ended Term ended no later than Jan 6, 2018 · Low confidence | Term ended | Term ended no later than Jan 6, 2018 | Low confidence |
| US 5,723,026 | Process for recovering pure benzene and pure toluene from aromatic hydrocarbon products Term ended Term ended no later than Mar 3, 2018 · Low confidence | Term ended | Term ended no later than Mar 3, 2018 | Low confidence |