The M. W. Kellogg Company

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C10G CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION 953
 
  
 
B01D SEPARATION 8126
 
  
 
C07C ACYCLIC OR CARBOCYCLIC COMPOUNDS 8130
 
  
 
F25J LIQUEFACTION, SOLIDIFICATION, OR SEPARATION OF GASES OR GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT 524
 
  
 
B01J CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 4105
 
  
 
C01C AMMONIA; CYANOGEN; COMPOUNDS THEREOF 311
 
  
 
C01B NON-METALLIC ELEMENTS; COMPOUNDS THEREOF277
 
  
 
C10K PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE215
 
  
 
F27B FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS222
 
  
 
F28D HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT 243

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6171570 Isothermal ammonia converterOct 12, 98Jan 09, 01[C01C]
5985134 Startup of magnetic separation process in an FCC unitFeb 12, 98Nov 16, 99[C10G]
5958218 Two-stage hydroprocessing reaction scheme with series recycle gas flowJan 22, 96Sep 28, 99[C07C, C10G, B01G]
5958219 Metals passivation by magnetic treatment to permit higher metals levels on FCC catalystFeb 12, 98Sep 28, 99[C10G]
5944981 Pyrolysis furnace tubesOct 28, 97Aug 31, 99[C07C, C10G]
5877380 Quench oil viscosity control in pyrolysis fractionatorOct 27, 97Mar 02, 99[C07C, C10G, B01D]
5877384 Apparatus and process for separating reaction effluent in the manufacture of cumeneFeb 12, 96Mar 02, 99[C07C]
5843303 Direct fired convection heating in residuum oil solvent extraction processSep 08, 97Dec 01, 98[C10C]
5773378 Spent catalyst distributionOct 30, 96Jun 30, 98[B01J]
5755933 Partitioned distillation columnJul 24, 95May 26, 98[B01D]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6099721 Use of magnetic separation to remove non-magnetic, particles from FCC catalystExpiredFeb 12, 98Aug 08, 00[C10G]
6041942 Magnetic catalyst separation using stacked magnetsExpiredFeb 12, 98Mar 28, 00[B03C]
6015450 Reducing methanol emissions from a syngas unitExpiredAug 13, 98Jan 18, 00[B01D]
6005011 Process for converting gas to liquidsExpiredMay 06, 98Dec 21, 99[C07C]
5972208 FCC metals passivation additives applied to catalystExpiredJul 09, 98Oct 26, 99[C10G]
5500094 Coke drum deheading deviceExpiredJun 30, 94Mar 19, 96[C10B]
5490920 Self-cleaning sedimentation unitExpiredSep 22, 94Feb 13, 96[B01D]
5387322 Fusel oil strippingExpiredMay 14, 93Feb 07, 95[B01D]
5346133 High temperature liquid injection apparatusExpiredMar 25, 93Sep 13, 94[B05B]
5335504 Carbon dioxide recovery processExpiredMar 05, 93Aug 09, 94[F25J]
5294157 Adjustable springs for pressure vessel closureExpiredMar 23, 92Mar 15, 94[E05C]
5247907 Process furnace with a split flue convection sectionExpiredMay 05, 92Sep 28, 93[F22B]
5228825 Pressure vessel closure deviceExpiredNov 01, 91Jul 20, 93[C10B]
5214225 Dehydrogenation process with improved heat recoveryExpiredDec 05, 91May 25, 93[C07C]
5180570 Integrated process for making methanol and ammoniaExpiredJan 23, 92Jan 19, 93[C01C, C07C]
5011625 Autothermal steam reforming processExpiredDec 11, 89Apr 30, 91[C01B, C10J]
4940828 Steam cracking feed gas saturationExpiredOct 13, 89Jul 10, 90[C07C]
4908121 Flexible feed pyrolysis processExpiredMay 12, 86Mar 13, 90[C10G]
4888156 Fluid catalytic cracking unit regeneration having internal cooling meansExpiredApr 29, 88Dec 19, 89[F27B]
4735780 Ammonia synthesis converterExpiredJul 27, 87Apr 05, 88[B01J]

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