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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B01D SEPARATION 18116
 
  
 
C02F TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE 253
 
  
 
B08B CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL 157
 
  
 
B29C SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 1124
 
  
 
C08F MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 1124
 
  
 
C08G MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 1119
 
  
 
C11D DETERGENT COMPOSITIONS 164
 
  
 
2301 FLUID DISTRIBUTION EQUIPMENT149

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9504964 Filtration method for operating a filtration module with gas feed at its permeate side to prevent backflow of permeateJul 14, 11Nov 29, 16[B01D]
8889824 Grafted poly(arylsulfone) and a process for grafting a poly(arylsulfone)Jul 15, 11Nov 18, 14[C08G, B01D]
8801867 Method for cleaning filter membranesJan 26, 10Aug 12, 14[B08B]
8393477 Filter mediumSep 15, 04Mar 12, 13[B01D]
D669960 Bypass ring for water filtration modulesAug 26, 11Oct 30, 12[2301]
8227396 Method for cleaning processing equipment selected from the group consisting of filtersJan 06, 10Jul 24, 12[C11D]
6251275 Membrane filtration module and membrane filtration systemMar 03, 98Jun 26, 01[B01D]
6203699 Filtration membrane moduleFeb 19, 99Mar 20, 01[B01D]
6186342 Semipermeable capillary having overlapped strengthening layerJul 15, 97Feb 13, 01[B01D]
5833854 Semipermeable composite membrane and a method for the preparation of such a membraneDec 17, 96Nov 10, 98[B01D]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2015/0265,972 PARALLEL TUBULAR MEMBRANES WITH RESILIENT WIRE SUPPORT STRUCTUREAbandonedFeb 13, 15Sep 24, 15[B01D]
8393479 Method for the production of tubular membranesExpiredSep 17, 04Mar 12, 13[B01D]
2009/0107,929 Apparatus Having A Bioreactor And Membrane Filtration Module For Treatment Of An Incoming FluidAbandonedMay 29, 07Apr 30, 09[C02F, B01D]
6846414 Membrane filtration element having sleeve element and socket membersExpiredApr 26, 02Jan 25, 05[B01D]
2002/0117,438 Pressurized filtering apparatus with membrane modulesAbandonedFeb 13, 02Aug 29, 02[B01D]
2001/0040,128 FILTERING DEVICEAbandonedFeb 18, 99Nov 15, 01[B01D]
RE34296 Process for the preparation of hydrophilic membranes and such membranesExpiredDec 17, 90Jun 29, 93[C08G]
5169575 Method for producing a flat porous productExpiredJan 16, 91Dec 08, 92[B29C]
5076925 Process for preparing a microporous membrane and such a membraneExpiredApr 17, 90Dec 31, 91[C08J, B01D]
5034129 Membrane assemblyExpiredSep 08, 89Jul 23, 91[B01D]
4798847 Process for the preparation of hydrophilic membranes and such membranesExpiredSep 21, 87Jan 17, 89[C08G]

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