De Nora S.p.A.

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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 4150

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6780537 Polymeric membrane electrochemical cell operating at temperatures above 100 cOct 31, 00Aug 24, 04[H01M]
6673127 Method of forming robust metal, metal oxide, and metal alloy layers on ion-conductive polymer membranesNov 09, 00Jan 06, 04[H01M]
6444602 Structures and methods of manufacture for gas diffusion electrodes and electrode componentsNov 14, 00Sep 03, 02[H01M]
6358381 Rhodium electrocatalyst and method of preparationJul 14, 00Mar 19, 02[C25B]
6165636 Composition of a selective oxidation catalyst for use in fuel cellsMar 17, 99Dec 26, 00[H01M]
6149782 Rhodium electrocatalyst and method of preparationMay 27, 99Nov 21, 00[C25B]
5993620 Anode for diaphragm electrochemical cellMar 31, 98Nov 30, 99[C25B]
5770035 Method for the electrolysis of aqueous solutions of hydrochloric acidDec 18, 96Jun 23, 98[C25B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6387440 Method for applying a coating to a metal substrate or repairing a coating applied to the sameExpiredJul 20, 01May 14, 02[B05D]
6379834 Composition of a selective oxidation catalyst for use in fuel cellsExpiredSep 25, 00Apr 30, 02[H01M]
6312757 Cathode for diaphragm chlor-alkali electrolysis cellExpiredJun 01, 00Nov 06, 01[B05D, C25B]
6287631 Method for applying a coating to a flange of an electrochemical cell or repairing a coating applied to the sameExpiredDec 21, 99Sep 11, 01[B05D]
6214181 Ion exchange membrane bipolar electrolyzerExpiredDec 22, 99Apr 10, 01[C25B]
6210550 Anode with improved coating for oxygen evolution in electrolytes containing manganeseExpiredSep 14, 99Apr 03, 01[C25B]
6093442 Cathode for diaphragm chlor-alkali electrolysis cellExpiredOct 06, 99Jul 25, 00[B05D, C25B]
6039852 Bipolar plate for filter press electrolyzersExpiredOct 27, 98Mar 21, 00[C25B]
5466347 Method for electrolyzing aqueous solution of alkali chlorideExpiredDec 07, 93Nov 14, 95[C25B]
5437771 Electrolytic cell and processes for producing alkali hydroxide and hydrogen peroxideExpiredFeb 15, 94Aug 01, 95[C25B]
4846971 Sieves for scrubbers and their method of manufactureExpiredFeb 16, 88Jul 11, 89[D21D, B01D]
4654136 Monopolar or bipolar electrochemical terminal unit having a novel electric current transmission elementExpiredDec 17, 84Mar 31, 87[C25B]
4610765 Seal means for electrolytic cellsExpiredSep 24, 84Sep 09, 86[C25B]
4578159 Electrolysis of alkali metal chloride brine in catholyteless membrane cells employing an oxygen consuming cathodeExpiredApr 25, 85Mar 25, 86[C25B]

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