Ecochem Aktiengesellschaft
Records under this name other than patents Ecochem Aktiengesellschaft holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
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| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 6,086,744 | Production of electrolytic copper from dilute solutions contaminated by other metals Term ended Term ended Aug 17, 2018 · From the USPTO record | Term ended | Term ended Aug 17, 2018 | From the USPTO record |
| US 6,159,356 | Process for the production of high purity copper metal from primary or secondary sulphides Term ended Term ended Apr 14, 2018 · From the USPTO record | Term ended | Term ended Apr 14, 2018 | From the USPTO record |
| US 6,136,059 | Process for reducing the electric steelworks dusts and facility for implementing it Term ended Term ended Oct 31, 2017 · From the USPTO record | Term ended | Term ended Oct 31, 2017 | From the USPTO record |
| US 6,203,769 | Process for the treatment of fluoboric electrolyte Lapsed on the fee record Ended Mar 20, 2005 · From the USPTO record | Lapsed on the fee record | Ended Mar 20, 2005 | From the USPTO record |
| US 5,039,337 | Process for producing electrolytic lead and elemental sulfur from galena Term ended Term ended no later than Aug 13, 2011 · Low confidence | Term ended | Term ended no later than Aug 13, 2011 | Low confidence |
| US 5,277,777 | Insoluble anode for electrolyses in aqueous solutions Term ended Term ended no later than Jan 11, 2014 · Low confidence | Term ended | Term ended no later than Jan 11, 2014 | Low confidence |
| US 5,372,684 | Process for the direct electrochemical refining of copper scrap Term ended Term ended no later than Dec 13, 2014 · Low confidence | Term ended | Term ended no later than Dec 13, 2014 | Low confidence |
| US 5,391,267 | Process for the production of alkali metal hydroxides and elemental sulfur from sulfur-containing alkali-metal salts Term ended Term ended no later than Feb 21, 2015 · Low confidence | Term ended | Term ended no later than Feb 21, 2015 | Low confidence |
| US 5,441,609 | Process for continuous electrochemical lead refining Term ended Term ended no later than Aug 15, 2015 · Low confidence | Term ended | Term ended no later than Aug 15, 2015 | Low confidence |
| US 5,468,354 | Process for heavy metal electrowinning Term ended Term ended no later than Nov 21, 2015 · Low confidence | Term ended | Term ended no later than Nov 21, 2015 | Low confidence |