Advanced Extraction Technologies, Inc.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
F25J LIQUEFACTION, SOLIDIFICATION, OR SEPARATION OF GASES OR GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT 425
 
 
 
B01D SEPARATION 3131
 
 
 
C07C ACYCLIC OR CARBOCYCLIC COMPOUNDS 3135
 
 
 
C08F MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 2123

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5681908 Absorption process for rejection of reactor byproducts and recovery of monomers from waste gas streams in olefin polymerization processesJan 25, 96Oct 28, 97[C08F]
5551972 Absorption process without external solventAug 23, 95Sep 03, 96[B01D]
5546764 Absorption process for recovering ethylene and hydrogen from refinery and petrochemical plant off-gasesMar 03, 95Aug 20, 96[F25J, C07C]
5521264 Gas phase olefin polymerization process with recovery of monomers from reactor vent gas by absorptionAug 03, 95May 28, 96[C08F]
5462583 Absorption process without external solventMar 04, 94Oct 31, 95[B01D]
5326929 Absorption process for hydrogen and ethylene recoveryAug 31, 92Jul 05, 94[F25J, C07C, B01D]
5224350 Process for recovering helium from a gas streamMay 11, 92Jul 06, 93[F25J]
5220097 Front-end hydrogenation and absorption process for ethylene recoveryFeb 19, 92Jun 15, 93[F25J, C07C]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7442847 Removing diamondoid components from natural gas at reduced temperaturesExpiredAug 23, 05Oct 28, 08[C07C]
2008/0256,977 Hydrocarbon recovery and light product purity when processing gases with physical solventsAbandonedApr 15, 08Oct 23, 08[F25J]
7337631 Use of cryogenic temperatures in processing gases containing light components with physical solventsExpiredMar 09, 05Mar 04, 08[F25J]
2004/0003,717 Use of product gas recycle in processing gases containing light components with physical solventsAbandonedJul 03, 03Jan 08, 04[B01D]
5019143 Low pressure noncryogenic processing for ethylene recoveryExpiredJun 24, 88May 28, 91[F25J]
4883515 Processing hydrocarbon gases with selected physical solventsExpiredSep 29, 87Nov 28, 89[F25J]
4883514 Processing nitrogen-rich gases with physical solventsExpiredJul 16, 87Nov 28, 89[F25J]
4832718 Processing nitrogen-rich, hydrogen-rich, and olefin-rich gases with physical solventsExpiredSep 23, 87May 23, 89[F25J]
4743282 Selective processing of gases containing olefins by the mehra processExpiredApr 21, 86May 10, 88[F25J]
4740222 Recovery and purification of hydrogen from refinery and petrochemical off-gas streamsExpiredMar 11, 87Apr 26, 88[F25J]
4696688 Conversion of lean oil absorption process to extraction process for conditioning natural gasExpiredFeb 13, 86Sep 29, 87[F25J]
4695672 Process for extractive-stripping of lean hydrocarbon gas streams at high pressure with a preferential physical solventExpiredApr 21, 86Sep 22, 87[F25J]
4692179 Process for using alkyl substituted C8-C10 aromatic hydrocarbons as preferential physical solvents for selective processing of hydrocarbon gas streamsExpiredDec 13, 85Sep 08, 87[F25J]
4680042 Extractive stripping of inert-rich hydrocarbon gases with a preferential physical solventExpiredFeb 13, 86Jul 14, 87[F25J]
4623371 Utilizing the Mehra process for processing and BTU upgrading of nitrogen-rich natural gas streamsExpiredJul 26, 85Nov 18, 86[F25J]
4617038 Process for using preferential physical solvents for selective processing of hydrocarbon gas streamsExpiredOct 04, 85Oct 14, 86[F25J]
4601738 Process for freeze protection and purification of natural gas liquid product streams produced by the Mehra processExpiredJul 24, 85Jul 22, 86[F25J]
4578094 Hydrocarbon separation with a physical solventExpiredAug 03, 84Mar 25, 86[F25J]
4526594 Process for flexibly rejecting selected components obtained from natural gas streamsExpiredSep 14, 83Jul 02, 85[F25J]
4511381 Process for extracting natural gas liquids from natural gas streams with physical solventsExpiredJun 24, 83Apr 16, 85[F25J]

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