Ecochem Aktiengesellschaft

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C25C PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR 514
 
  
 
C25D PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING 249
 
  
 
C21B MANUFACTURE OF IRON OR STEEL 122
 
  
 
C25B ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON- METALS; APPARATUS THEREFOR 134

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6159356 Process for the production of high purity copper metal from primary or secondary sulphidesApr 14, 98Dec 12, 00[C25C]
6136059 Process for reducing the electric steelworks dusts and facility for implementing itOct 31, 97Oct 24, 00[C21B]
6086744 Production of electrolytic copper from dilute solutions contaminated by other metalsAug 17, 98Jul 11, 00[C25D]
5750019 Process for hydrometallurgic and electrochemical treatment of sulfur antimony ores with production of electrolytic antimony and elemental sulfurMay 05, 97May 12, 98[C25C]
5630931 Process for the hydrometallurgical and electrochemical treatment of the active mass of exhausted lead batteries, to obtain electrolytic lead and elemental sulphurJan 25, 96May 20, 97[C25D]
5468354 Process for heavy metal electrowinningMay 02, 94Nov 21, 95[C25C]
5441609 Process for continuous electrochemical lead refiningAug 12, 93Aug 15, 95[C25C, C25B]
5372684 Process for the direct electrochemical refining of copper scrapJun 03, 93Dec 13, 94[C25C]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6203769 Process for the treatment of fluoboric electrolyteExpiredJul 01, 99Mar 20, 01[C01B, C01G, C01F]
5879830 Process for regenerating sodium sulphide from the sodium sulphate which forms in treating lead paste from exhausted batteriesExpiredDec 04, 97Mar 09, 99[H01M, C01G]
5534131 Process for heavy metals electrowinningExpiredSep 06, 95Jul 09, 96[C25D]
5391267 Process for the production of alkali metal hydroxides and elemental sulfur from sulfur-containing alkali-metal saltsExpiredAug 25, 93Feb 21, 95[C25B]
5277777 Insoluble anode for electrolyses in aqueous solutionsExpiredOct 01, 91Jan 11, 94[C25C]
5039337 Process for producing electrolytic lead and elemental sulfur from galenaExpiredJul 30, 90Aug 13, 91[C22B]

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