Heraeus Electrochemie GmbH

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C25B ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON- METALS; APPARATUS THEREFOR 233
 
  
 
D02G CRIMPING OR CURLING FIBRES, FILAMENTS, YARNS, OR THREADS; YARNS OR THREADS128

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5700572 PTFE fibre material and process for making itJun 02, 95Dec 23, 97[C25B, D02G]
5324409 Electrode arrangement for electrolytic cellsSep 11, 92Jun 28, 94[C25B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5928710 Electrode processingExpiredMay 05, 97Jul 27, 99[B05D]
5733424 Electrode with plate-shaped electrode carrierExpiredNov 15, 95Mar 31, 98[C25B]
5660698 Electrode configuration for gas-forming electrolytic processes in membrane cells or diapragm cellsExpiredSep 05, 95Aug 26, 97[C25B]
5609748 Anode for cathodic protection against corrosionExpiredMay 31, 95Mar 11, 97[C23F]
5589044 Electrode for electrolysis cellsExpiredMay 01, 95Dec 31, 96[C25B]
5516411 Method and apparatus for continuous electrolytic recovery of metal in ribbon form from a metal containing solutionExpiredJan 18, 95May 14, 96[C25D]
5478448 Process and apparatus for regenerating an aqueous solution containing metal ions and sulfuric acidExpiredJul 01, 94Dec 26, 95[C23G]
5384020 Anode structure for cathodic protection against corrosion, and method for making the anode structureExpiredJun 02, 93Jan 24, 95[C23F]
5362369 Fully automatic current control for metal depletion cellsExpiredSep 03, 92Nov 08, 94[C25D, C25C]
5344540 Electrochemical cell with degassing deviceExpiredJan 28, 93Sep 06, 94[C25B]
5334301 Electrochemical cell having inflatable seals between electrodesExpiredFeb 09, 93Aug 02, 94[C25B]
5312533 Electrode element for electrolytic purposes and its useExpiredAug 05, 92May 17, 94[C25C]
5277776 Power lead for an electrodeExpiredApr 06, 93Jan 11, 94[C25B]
5141616 Electrode for extracting metals from a metal ion solutionExpiredJul 23, 91Aug 25, 92[C25C]
5135633 Electrode arrangement for electrolytic processesExpiredNov 21, 90Aug 04, 92[C25C]
4963244 Test cell for identifying deactivated surface areas of an electrodeExpiredJan 23, 90Oct 16, 90[G01N]
4946571 ElectrodeExpiredOct 17, 88Aug 07, 90[C25D]
4919766 Inspection of electrodes having activated layersExpiredSep 06, 89Apr 24, 90[G01N]
4855032 Electrode structureExpiredJul 22, 88Aug 08, 89[C25B]
4786384 Electroytic cell for treatment of metal ion containing industrial waste waterExpiredNov 18, 87Nov 22, 88[C25B, C02F]

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