Memtec Limited

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
B01D SEPARATION 3131
 
 
 
G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR166

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5918264 Fiber monitoring systemAug 22, 95Jun 29, 99[G01M, B01D]
5690782 Apparatus for integrally joining preformed thermoplastic core elements especially adapted for the continuous manufacture of melt-blown filter cartridgesDec 04, 96Nov 25, 97[B01D]
5643455 Concentration of solids in a suspension using hollow fibre membranesFeb 22, 95Jul 01, 97[B01D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5910249 Method and apparatus for recovering water from a sewer mainExpiredSep 09, 96Jun 08, 99[B01D]
5141611 Removing and recovering plant polyphenolsExpiredSep 27, 89Aug 25, 92[A23L, C12H, B01D]
4970273 Sulphuryl chloride/polyamide derivative supportExpiredJan 23, 89Nov 13, 90[C08G]
4935143 Cleaning of filtersExpiredMar 10, 88Jun 19, 90[B01D]
4921610 Cleaning of hollow fibre filtersExpiredMay 04, 88May 01, 90[B01D]
4909938 Reversed phase membranesExpiredAug 17, 88Mar 20, 90[B01D]
4846976 Treatment of emulsionsExpiredJul 29, 87Jul 11, 89[B01D]
4822863 Sulphuryl chloride/polyamide derivativeExpiredJun 27, 86Apr 18, 89[C08G]
4816160 Cooling hollow fibre cross-flow separatorsExpiredNov 17, 86Mar 28, 89[B01D]
4814083 Altering pore size distributionsExpiredOct 28, 86Mar 21, 89[B01D]
4793932 Variable volume filter or concentratorExpiredDec 05, 86Dec 27, 88[B01D]
4781873 Reversed phase membranesExpiredNov 17, 86Nov 01, 88[B01D]
4743378 Rapid vapor transport through unwetted porous barriersExpiredNov 17, 86May 10, 88[E01D]
4668706 Substituted aliphatic polyamide porous membranesExpiredJul 18, 86May 26, 87[C08J]
4661526 Cross linked porous membranesExpiredOct 01, 84Apr 28, 87[C08J]
4655927 Separating oil emulsionsExpiredJul 08, 85Apr 07, 87[B01D]
4624784 Apparatus including a flow path formed by membrane compressionExpiredDec 10, 84Nov 25, 86[B01D]
4623463 Formation of porous membranesExpiredJan 09, 85Nov 18, 86[B29C]
4613625 Substituted aliphatic polyamide porous membranesExpiredJun 13, 85Sep 23, 86[C08V]

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