AMT International, Inc.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B01D SEPARATION 14120
 
  
 
B01F MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING 1428
 
  
 
C07C ACYCLIC OR CARBOCYCLIC COMPOUNDS 12126
 
  
 
C10G CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION 854
 
  
 
B03C MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS 318
 
  
 
C07D HETEROCYCLIC COMPOUNDS 1161

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9844738 Tray assembly for gas/liquid contact towerJun 20, 16Dec 19, 17[B01F, B01D]
9649638 Process and apparatus for online rejuvenation of contaminated sulfolane solventFeb 01, 13May 16, 17[B03C, C10G, B01D]
9440947 Regeneration of selective solvents for extractive processesDec 06, 12Sep 13, 16[C07D, C07C, C10G, B01D]
9193660 Process for recovery of a carboxylic acid from a feed stream containing the corresponding esterJun 20, 13Nov 24, 15[C07C, B01D]
9067846 Process for producing styrene-, methylstyrene- and ethylbenzene-free C6-C9 aromatic hydrocarbon blendsJun 07, 13Jun 30, 15[C07C]
9005405 Extractive distillation process for benzene recoveryMar 01, 12Apr 14, 15[C07C, B01D]
8900449 Magnetic filter for refining and chemical industriesMar 13, 12Dec 02, 14[B03C]
8680358 Methods for removing heavy hydrocarbons from extractive solventsFeb 27, 13Mar 25, 14[C07C]
8663461 Extraction process with novel solvent regeneration methodsMar 03, 13Mar 04, 14[C07C, C10G, B01D]
8636907 Sealed magnetic filter for hazardous operations and easy clean serviceMay 09, 13Jan 28, 14[B03C, B01D]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2013/0277,200 SPRING LOADED PRESSURE RELIEF DEVICEAbandonedOct 18, 11Oct 24, 13[B01D]
8172987 Low-energy extractive distillation process for dehydration of aqueous ethanolExpiredJul 17, 11May 08, 12[C07C, C12G, B01D]
2011/0137,080 PROCESS AND APPARATUS FOR RECOVERY OF ACETIC ACID FROM A FEED STREAM CONTAINING THE CORRESPONDING ESTERAbandonedAug 11, 09Jun 09, 11[C07C, B01D]
2010/0041,919 PROCESS AND APPARATUS FOR RECOVERY OF ACETIC ACID FROM METHYL ACETATEAbandonedAug 13, 09Feb 18, 10[C07C, B01J]
2007/0068,792 System and method for acetic acid dehydrationAbandonedSep 23, 05Mar 29, 07[B01D]
6948705 Gas/liquid contacting apparatusExpiredOct 07, 03Sep 27, 05[B01F]
6799752 Method and apparatus for improving a fractionation processExpiredMay 03, 01Oct 05, 04[B01F]
6565071 Liquid/gas contacting apparatusExpiredOct 11, 01May 20, 03[B01F]
6053485 Apparatus for tray valve attachmentExpiredOct 09, 98Apr 25, 00[B01F]

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