Cosden Technology, 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 1108

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5846896 Metallocene catalyst systemsMay 06, 91Dec 08, 98[B01J]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6117957 Process for polymerization of olefins with silicon bridged metallocene catalyst systemsExpiredMar 05, 97Sep 12, 00[C08F]
4917789 Catalytic dewaxing processExpiredFeb 03, 87Apr 17, 90[C10G]
4892851 Process and catalyst for producing syndiotactic polyolefinsExpiredJul 15, 88Jan 09, 90[C08F]
4861827 Continuous process for the production of high impact polystyrene using non-acid forming initiatorsExpiredDec 24, 87Aug 29, 89[C08F]
4857587 Continuous process including recycle stream treatment for the production of high impact polystyreneExpiredDec 24, 87Aug 15, 89[C08F, C08L]
4794096 Hafnium metallocene catalyst for the polymerization of olefinsExpiredSep 11, 87Dec 27, 88[C08F]
4781906 Crystalline silicasExpiredDec 19, 83Nov 01, 88[C01B]
4777210 Continuous production of high impact polystyreneExpiredJul 25, 86Oct 11, 88[C08F]
4774379 Aromatic alkylation processExpiredJun 09, 87Sep 27, 88[C07C]
4772456 Process for preparing crystalline silicasExpiredDec 19, 83Sep 20, 88[C01B]
4767735 Catalyst pretreatment processExpiredFeb 02, 87Aug 30, 88[C08F]
4761514 Toluene disproportionation processExpiredMay 18, 87Aug 02, 88[C07C]
4723049 Toluene disproportionation processExpiredMay 18, 87Feb 02, 88[C07C]
4723050 Xylene isomerization processExpiredSep 03, 86Feb 02, 88[C07C]
4723051 Xylene isomerization processExpiredSep 03, 86Feb 02, 88[C07C]
4677171 Process for producing styrenic/alkenylnitrile copolymersExpiredJul 16, 85Jun 30, 87[C08F]
4673586 Method for making plastic containers having decreased gas permeabilityExpiredOct 29, 85Jun 16, 87[B05D]
4667620 Method and apparatus for making plastic containers having decreased gas permeabilityExpiredOct 29, 85May 26, 87[C23C, B05D, B05B]
4665258 Toluene disproportionation processExpiredFeb 06, 86May 12, 87[C07C]
4623431 Polymerization inhibitor for vinyl aromatic compoundsExpiredJul 18, 85Nov 18, 86[B01D]

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