CRI International, Inc.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B01J CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 5104
 
  
 
C10G CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION 161

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6093309 Method of treating spontaneously combustible catalystsSep 16, 97Jul 25, 00[C10G]
5990037 Method of treating spontaneously combustible catalystsJul 18, 97Nov 23, 99[B01J]
5688736 Method of presulfurizing a hydrotreating, hydrocracking or tail gas treating catalystOct 26, 95Nov 18, 97[B01J]
5681787 Method of treating spontaneously combustible catalystsApr 27, 95Oct 28, 97[B01J]
5292702 Presulfurized hydrotreating, hydrocracking or tail gas treating catalystOct 30, 92Mar 08, 94[B01J]
5215954 Method of presulfurizing a hydrotreating, hydrocracking or tail gas treating catalystJul 30, 91Jun 01, 93[B01J]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6077807 Method of treating spontaneously combustible catalystsExpiredAug 25, 99Jun 20, 00[B01J]
5082552 Hydrotreating with catalyst particles using length and density gradingExpiredMar 12, 90Jan 21, 92[B01J, C10G]
5041404 Method of presulfiding a hydrotreating, hydrocracking or tail gas treating catalystExpiredMar 13, 90Aug 20, 91[B01J, K10G]
4943547 Method of presulfiding a hydrotreating catalystExpiredSep 13, 88Jul 24, 90[B01J, K10G]
4720473 Production of improved catalyst-type particles using length and density gradingExpiredAug 07, 86Jan 19, 88[B03B, B07B, B01J, C10G]

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