DE NORA PERMELEC S.P.A., A CORP. OF ITALY

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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 431
 
  
 
H01M PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 2152
 
  
 
C25C PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR 118

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5578388 Electrochemical cell provided with ion exchange membranes and bipolar metal platesJun 01, 95Nov 26, 96[H01M]
5565072 Electrochemical cell provided with ion exchange membranes and bipolar metal platesJun 01, 95Oct 15, 96[C25C]
5534122 Cell having a porous diaphragm for chlor-alkali electrolysis and process using the sameMar 29, 95Jul 09, 96[C25B]
5482792 Electrochemical cell provided with ion exchange membranes and bipolar metal platesApr 13, 94Jan 09, 96[H01M]
5431796 Shortcircuiting system for use in monopolar and bipolar electrolyzersAug 05, 94Jul 11, 95[C25B]
5401367 Chlor-alkali diaphragm electrolysis process and relevant cellJan 31, 94Mar 28, 95[C25B]
RE32077 Electrolytic cell with membrane and method of operationOct 02, 81Feb 04, 86[C25B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5776328 Apparatus and process for electrochemically decomposing salt solutions to form the relevant base and acidExpiredMay 24, 96Jul 07, 98[C25B]
5660713 Jumper switch means for electrolyzers electrically connected in seriesExpiredJul 08, 94Aug 26, 97[C25B]
5595641 Apparatus and process for electrochemically decomposing salt solutions to form the relevant base and acidExpiredDec 08, 93Jan 21, 97[C25B]
5464507 Process for the electrolytic deposition of metalsExpiredAug 25, 94Nov 07, 95[C25C]
5435761 Underwater propulsion method and apparatusExpiredJan 05, 94Jul 25, 95[B60L]
5346596 Method for bypassing a monopolar electrolyzer in seriesExpiredFeb 26, 93Sep 13, 94[C25B]
5344530 Metal anodes for electrolytic acid solutions containing fluorides or fluoroanionic complexesExpiredApr 29, 93Sep 06, 94[C25C]
5207883 Jumper switch meansExpiredJul 09, 92May 04, 93[C25B]
5163841 Correcting articulation defect in dentate human jawExpiredApr 09, 91Nov 17, 92[A61C]
5162165 High power density battery for peak powerExpiredJul 05, 90Nov 10, 92[H01M]
5066378 ElectrolyzerExpiredOct 03, 89Nov 19, 91[C25B]
5015345 Method for detecting defective ion exchange membranes in monopolar and bipolar electrolyzersExpiredJul 24, 89May 14, 91[C25B]
5013414 Electrode structure for an electrolytic cell and electrolytic process used thereinExpiredApr 19, 89May 07, 91[C25B]
5006215 Squeezer apparatusExpiredJul 27, 89Apr 09, 91[C25B, B01D]
4975161 Electrodes for use in electrochemical processes and method for preparing the sameExpiredOct 30, 86Dec 04, 90[C25B]
4938851 Method for preparing an electrode and use thereof in electrochemical processesExpiredFeb 05, 88Jul 03, 90[C25D, C25B]
4869799 Membrane cell for the electrolysis of alkali metal chloride and process thereofExpiredJun 11, 87Sep 26, 89[C25B]
4830721 Electrochemical deoxygenation process for corrosion control in deionized watersExpiredJan 22, 88May 16, 89[C25B, C02F]
4828653 Long lasting anode for high current density galvanizationExpiredDec 16, 87May 09, 89[C25D]
4792388 Electrolysis method of electrolyzing halidesExpiredDec 21, 87Dec 20, 88[C25B]

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