Citgo Petroleum Corp.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C10B DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS 316
 
  
 
F28F DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION 151
 
  
 
0901 BOTTLES, FLASKS, POTS, CARBOYS, DEMIJOHNS, AND CONTAINERS WITH DYNAMIC DISPENSING MEANS156

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
D691053 BottleMay 13, 11Oct 08, 13[0901]
7574981 Apparatus and method for improving the durability of a cooling tube in a fire tube boilerOct 05, 06Aug 18, 09[F28F]
6039844 Containment system for coke drumsOct 09, 98Mar 21, 00[C10B]
5827403 Method of designing and manufacturing a delayed coker drumJul 10, 96Oct 27, 98[C10B]
5795445 Method of controlling the quench of coke in a coke drumJul 10, 96Aug 18, 98[C10B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2009/0325,829 Reduced Molybdenum Grease FormulationAbandonedJun 27, 08Dec 31, 09[C10M]
2002/0157,987 Apparatus and method for accumulating cokeAbandonedFeb 28, 01Oct 31, 02[C10G, C10B]
5098524 Coke drum unheading deviceExpiredDec 10, 90Mar 24, 92[C10B]
4781252 Storage tank fire extinguishing apparatusExpiredJan 07, 88Nov 01, 88[A62C]
4602870 Method and apparatus for determining the presence or absence of a pour point depressant additive in hydrocarbon liquidsExpiredSep 20, 84Jul 29, 86[G01N]

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