Research Association for Utilization of Light Oil

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C07C ACYCLIC OR CARBOCYCLIC COMPOUNDS 1137

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5196631 Catalyst for production of aromatic hydrocarbons and process for production of aromatic hydrocarbons using sameNov 15, 91Mar 23, 93[C07C]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5362696 Process for producing spherical zeolite catalyst and apparatus for producing the sameExpiredMar 11, 92Nov 08, 94[B01J]
5321179 Process for preparing of aromatic hydrocarbonsExpiredJan 06, 93Jun 14, 94[C07C]
5256551 Method of treating microorganism cells containing tryptophanase or treated product thereofExpiredJul 17, 91Oct 26, 93[C12P, C12N]
5202513 Process for producing aromatic hydrocarbonsExpiredFeb 21, 92Apr 13, 93[C07C]
5191131 Process for preparation of lower aliphatic hydrocarbonsExpiredDec 04, 89Mar 02, 93[C07C]
5091351 Catalyst for production of aromatic hydrocarbonsExpiredApr 21, 89Feb 25, 92[B01J]
5073652 Process for preparing aromatic hydrocarbonsExpiredSep 21, 90Dec 17, 91[C07C]
4962251 Process for production of aromatic hydrocarbonsExpiredDec 28, 89Oct 09, 90[C07C]
4937215 Process for restoring deactivated catalystsExpiredOct 12, 88Jun 26, 90[B01J, C10G]
4935527 Production of aziridine-2-carboxylic acid saltsExpiredDec 23, 88Jun 19, 90[C07D]
4761512 Catalyst for the production of aromatic hydrocarbons and process for the production of aromatic hydrocarbons using said catalystExpiredMar 31, 87Aug 02, 88[C07C]
4757152 Process for producing indolesExpiredNov 12, 85Jul 12, 88[C07D]
4681865 Catalyst for the production of aromatic hydrocarbonsExpiredApr 28, 86Jul 21, 87[B01J]
4677213 2,5-diamino-1,4-dioxane derivatives and process for production thereofExpiredNov 14, 84Jun 30, 87[C07D]

Top Inventors for This Owner

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