ELECTROSYNTHESIS COMPANY

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6712946 Electrodialysis of multivalent metal saltsExpiredMay 21, 02Mar 30, 04[B01P]
6712949 Electrochemical synthesis of hydrogen peroxideExpiredJul 19, 02Mar 30, 04[C25B]
6602630 Membrane electrode assemblies for electrochemical cellsExpiredMar 13, 01Aug 05, 03[H01M]
6541228 Electrodialysis methods for purification and recovery of gluconic acid derivativesExpiredNov 28, 00Apr 01, 03[C12P, B01D]
6495013 Bipolar membrane electrodialysis of multivalent metal salts whose corresponding base is insolubleExpiredJul 10, 01Dec 17, 02[B01D]
2002/0014,413 Electrolytic system and methods for screening catalytic materialsAbandonedAug 01, 01Feb 07, 02[C25D, C25C]
6187570 Electrodialysis methods for purification and recovery of gluconic acid derivativesExpiredMay 25, 99Feb 13, 01[C12P, B01D]
6004445 Electrochemical methods for recovery of ascorbic acidExpiredJun 30, 98Dec 21, 99[B01D]
5437772 Portable lead detectorExpiredNov 01, 93Aug 01, 95[G01N]
5246551 Electrochemical methods for production of alkali metal hydroxides without the co-production of chlorineExpiredFeb 11, 92Sep 21, 93[C25B]
5207877 Methods for purification of airExpiredMar 18, 91May 04, 93[B01D]
5116592 Fluorinated carbons and uses thereofExpiredJan 16, 90May 26, 92[C01B, H01M]
5106463 High yield methods for electrochemical preparation of cysteine and analoguesExpiredAug 15, 88Apr 21, 92[C25B]
4908198 Fluorinated carbons and methods of manufactureExpiredJun 02, 86Mar 13, 90[C01B]
4835074 Modified carbons and electrochemical cells containing the sameExpiredSep 25, 87May 30, 89[H01M, H01B, B01J]

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