Chisso Engineering Co Ltd
Records under this name other than patents Chisso Engineering Co Ltd holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
Back to Chisso Engineering Co Ltd
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 4,013,430 | Process for regenerating absorbing solution used for exhaust gas purification Term ended Term ended no later than Mar 22, 1997 · Low confidence | Term ended | Term ended no later than Mar 22, 1997 | Low confidence |
| US 4,079,118 | Method for removing nitrogen oxides using ferricion-EDTA complex solutions Term ended Term ended no later than Mar 14, 1998 · Low confidence | Term ended | Term ended no later than Mar 14, 1998 | Low confidence |
| US 4,091,074 | Method for regenerating iron-EDTA solutions used for scrubbing plug gases Term ended Term ended no later than May 23, 1998 · Low confidence | Term ended | Term ended no later than May 23, 1998 | Low confidence |
| US 4,290,996 | Method for initiating biaxial stretching of plastic tubes and apparatus therefor Term ended Term ended no later than Sep 22, 2001 · Low confidence | Term ended | Term ended no later than Sep 22, 2001 | Low confidence |
| US 4,299,793 | Method and apparatus for producing tubular plastic films Term ended Term ended no later than Nov 10, 2001 · Low confidence | Term ended | Term ended no later than Nov 10, 2001 | Low confidence |
| US 4,366,356 | Compact induced current heat-generating pipe Term ended Term ended no later than Dec 28, 2002 · Low confidence | Term ended | Term ended no later than Dec 28, 2002 | Low confidence |
| US 4,374,705 | Distillation for alcohol Term ended Term ended no later than Feb 22, 2003 · Low confidence | Term ended | Term ended no later than Feb 22, 2003 | Low confidence |
| US 4,456,186 | Electrically heated reactor for high temperature and pressure chemical reactions Term ended Term ended no later than Jun 26, 2004 · Low confidence | Term ended | Term ended no later than Jun 26, 2004 | Low confidence |
| US 4,486,103 | Method of and system for inspecting performance of heat-insulating layer surrounding a pipe Term ended Term ended no later than Dec 4, 2004 · Low confidence | Term ended | Term ended no later than Dec 4, 2004 | Low confidence |
| US 4,578,564 | Series-connected, skin-current heating pipe including current trouble detector Term ended Term ended no later than Mar 25, 2006 · Low confidence | Term ended | Term ended no later than Mar 25, 2006 | Low confidence |