Madison Filter 981 Ltd.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B01D SEPARATION 9125
 
  
 
B05D PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL 186
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM1156
 
  
 
F16G BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR128
 
  
 
F28D HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT 144

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9616367 Filter cloth retentionJan 18, 16Apr 11, 17[B01D]
9248389 Filter cloth retentionNov 25, 04Feb 02, 16[B01D]
8540789 Filter element constructionsAug 22, 08Sep 24, 13[B01D]
8518140 Filter element framesDec 22, 08Aug 27, 13[B01D]
8480896 Scavenging filterSep 14, 06Jul 09, 13[B01D]
8361584 Belt seamsJan 13, 09Jan 29, 13[F16G]
7985270 Fluid bed dryer filtersNov 10, 06Jul 26, 11[B01D]
7735659 Filter element mounting apparatusNov 05, 04Jun 15, 10[B01D]
6932906 Filter element fixation for filter pressesMay 23, 01Aug 23, 05[B32B]
6648147 Phase-separation memberFeb 20, 01Nov 18, 03[B01D]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2008/0314,012 Filter ElementsAbandonedOct 27, 06Dec 25, 08[B01D]
2005/0163,689 Filter elementsAbandonedMar 04, 05Jul 28, 05[B01D]
2005/0050,869 Heat stable filter constructionAbandonedJul 07, 04Mar 10, 05[B01D]
6454940 Retention of filter elementsExpiredApr 23, 01Sep 24, 02[B01D]
6182343 Filter cloth caulking toolExpiredJul 16, 99Feb 06, 01[B23P]
6007717 Filter cloths incorporating a feed passage connector for use with plate-type filter pressesExpiredAug 25, 97Dec 28, 99[B01D]
5194322 Coated textile materialsExpiredDec 03, 90Mar 16, 93[B05D, B32B]
4765859 Method of making filtercloths by induction heatingExpiredFeb 05, 87Aug 23, 88[B32B]
4588632 Industrial fabricsExpiredOct 12, 84May 13, 86[D03D, B32B]

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