Assignee
ECOCHEM AG
LI·9 granted patents·88 citations·filing 1993–1999
Top patents by PatentIndex Score
9 records- 0163US6136059AProcess for reducing the electric steelworks dusts and facility for implementing itECOCHEM AG·Filed 1997·Granted Oct 24, 2000·20 cites·11 claims
- 0259US5391267AProcess for the production of alkali metal hydroxides and elemental sulfur from sulfur-containing alkali-metal saltsECOCHEM AG·Filed 1993·Granted Feb 21, 1995·16 cites·6 claims
- 0356US6159356AProcess for the production of high purity copper metal from primary or secondary sulphidesECOCHEM AG·Filed 1998·Granted Dec 12, 2000·12 cites·5 claims
- 0452US5372684AProcess for the direct electrochemical refining of copper scrapECOCHEM AG·Filed 1993·Granted Dec 13, 1994·11 cites·8 claims
- 0544US5879830AProcess for regenerating sodium sulphide from the sodium sulphate which forms in treating lead paste from exhausted batteriesECOCHEM AG·Filed 1997·Granted Mar 9, 1999·16 cites·3 claims
- 0641US6086744AProduction of electrolytic copper from dilute solutions contaminated by other metalsECOCHEM AG·Filed 1998·Granted Jul 11, 2000·5 cites·5 claims
- 0736US5468354AProcess for heavy metal electrowinningECOCHEM AG·Filed 1994·Granted Nov 21, 1995·3 cites·3 claims
- 0833US5534131AProcess for heavy metals electrowinningECOCHEM AG·Filed 1995·Granted Jul 9, 1996·2 cites·7 claims
- 0932US6203769B1Process for the treatment of fluoboric electrolyteECOCHEM AG·Filed 1999·Granted Mar 20, 2001·3 cites·7 claims
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