EXPORTECH COMPANY, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B01D SEPARATION 1133
 
  
 
B02C CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN 134
 
  
 
B03C MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS 120
 
  
 
B07B SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, OR SIFTING OR BY USING GAS CURRENTS; OTHER SEPARATING BY DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL 120

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5868939 Method and apparatus for breaking emulsions of immiscible liquids by magnetostatic coalescenceJun 06, 95Feb 09, 99[B01D]
5127586 Method of magnetic separation and apparatus thereforeFeb 28, 91Jul 07, 92[B03C, B02C, B07B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7681736 VacuMag magnetic separator and processExpiredOct 11, 05Mar 23, 10[B03C]
7367456 Air jig for separation of minerals from coalExpiredFeb 13, 04May 06, 08[B03C]
6540088 Method and apparatus for sorting particles with electric and magnetic forcesExpiredJul 18, 01Apr 01, 03[B03C]
5176260 Method of magnetic separation and apparatus thereforeExpiredNov 19, 90Jan 05, 93[B03C]
5147045 Particulate separations by electrostatic coalescenceExpiredNov 28, 88Sep 15, 92[B03C, B03B, C10G]
5017283 Method of magnetic separation and apparatus thereforeExpiredDec 21, 89May 21, 91[B03C]
4830634 Preparation of coal substitute of low ash and sulfurExpiredSep 03, 86May 16, 89[C10L]

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