ECC INTERNATIONAL LIMITED

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C04B LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS 464
 
  
 
B02C CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN 233
 
  
 
B09B DISPOSAL OF SOLID WASTE 110
 
  
 
C02F TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE 154
 
  
 
C09C TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES 129
 
  
 
D21C PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE- CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR127

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6341739 Processing of ceramic materialsDec 29, 97Jan 29, 02[B02C]
6063237 Treatment of solid containing material derived from effluent or waste from wastepaper treating processFeb 27, 97May 16, 00[D21C]
6051141 Water treatmentFeb 05, 98Apr 18, 00[C02F]
5972263 Process for producing clay compositions for use in slip castingDec 10, 97Oct 26, 99[C04B]
5882146 Immobilization of materialsAug 21, 97Mar 16, 99[B09B]
5833747 Paper coating pigments and their production and useOct 09, 96Nov 10, 98[C09C]
5743952 Aqueous suspensions of inorganic materialsNov 21, 96Apr 28, 98[C04B]
5418195 Porous ceramic granulesOct 26, 93May 23, 95[C04B]
5393716 Process for producing anti-blocking compositionsSep 24, 93Feb 28, 95[C04B]
5238193 Dry grindingApr 21, 92Aug 24, 93[B02C]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6315867 Dispersing agents and their useExpiredOct 30, 97Nov 13, 01[D21H]
6030704 Granular materials comprising inorganic silicon-containing materialExpiredJun 18, 97Feb 29, 00[B32B]
6003795 Preparations of suspensions of ground particulate materialExpiredJul 14, 98Dec 21, 99[B02C]
5977003 Particulate materialsExpiredSep 18, 96Nov 02, 99[C04B]
5965103 Production of slaked limeExpiredDec 18, 97Oct 12, 99[C01F]
5885340 Quality of multiple coated paperExpiredOct 27, 97Mar 23, 99[L09D]
5879512 Paper coatingExpiredJun 12, 97Mar 09, 99[C09C, D21H]
5880177 Particulate materialsExpiredJun 02, 97Mar 09, 99[C08K]
5846314 Process for treating a waste material resulting from an oil recovery from tar sands processExpiredOct 29, 96Dec 08, 98[C04B, C10G]
5846378 Treatment of solid containing material derived from effluent of wastepaper treating plantExpiredMar 21, 97Dec 08, 98[D21C]
5731034 Method of coating paperExpiredDec 02, 96Mar 24, 98[B05D]
5683590 Treatment of waste paperExpiredMay 10, 96Nov 04, 97[C02F]
5633295 Coated filler for a thermoplastic compositionExpiredOct 13, 95May 27, 97[B05D, C08K, B32B]
5624882 Color developer compositions for carbonless paper copying systemsExpiredMay 27, 94Apr 29, 97[B41M, C09D]
5614462 Color developer compositions for carbonless paper copying systemsExpiredApr 12, 96Mar 25, 97[B41M]
5558850 Precipitated calcium carbonateExpiredAug 09, 94Sep 24, 96[C01F]
5513806 Autogenous comminution in a planetary millExpiredJun 29, 94May 07, 96[B02C]
5478388 Pigment for a coating composition for printing paperExpiredApr 28, 94Dec 26, 95[C09D, D21H]
5458973 Granular fillerExpiredApr 29, 94Oct 17, 95[B32B]
5420190 Paper coatingExpiredMay 24, 93May 30, 95[C08K, B32B]

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