TEXACO CHEMICAL COMPANY

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
A61B DIAGNOSIS; SURGERY; IDENTIFICATION 1239
 
  
 
B01D SEPARATION 1133
 
  
 
H04M TELEPHONIC COMMUNICATION 1162

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6038308 ISDN primary rate interswitch mail using non-call associated temporary signallingNov 11, 97Mar 14, 00[H04M]
5936208 Hearing protector against loud noisesDec 18, 97Aug 10, 99[A61B]
5549831 Method for processing chemical cleaning solvent wasteAug 08, 95Aug 27, 96[B01D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5707427 Multiphase fluid separator systemExpiredApr 21, 93Jan 13, 98[B01D]
5616217 Controlled alkali treatment in the recovery of methyl tertiary butyl etherExpiredAug 17, 95Apr 01, 97[C07C, B01D]
5552205 Batting filled inflatable body and method of making the sameExpiredMar 21, 94Sep 03, 96[B32B]
5473256 Combination microwave waveguide and pressure barrierExpiredSep 07, 94Dec 05, 95[H01P, G01R]
5418523 Earthquake motion detector alarmExpiredMar 21, 94May 23, 95[G08B]
H001407 Synthetic lubricant base stocks by co-reaction of vinylcyclohexene and long-chain olefinsExpiredSep 10, 90Jan 03, 95[C10M]
5293939 Formation treating methodsExpiredJul 31, 92Mar 15, 94[E21B]
5234478 Fuel additive method of preparation and motor fuel compositionExpiredJun 10, 92Aug 10, 93[C10L, C07C]
5203879 Fuel compositionExpiredSep 01, 92Apr 20, 93[C10L]
5074100 Rail structure apparatus and method of fabricating matchbook-like articles containing wound dental floss and the likeExpiredFeb 08, 91Dec 24, 91[A61L]
5001211 Salicylate of 1-isopropyl-2-methyl imidazole as an epoxy resin curativeExpiredOct 26, 89Mar 19, 91[C08G]
5001267 Secondary alkyl amine derivatives of ethylenediamineExpiredMar 13, 89Mar 19, 91[C07C]
4996294 Preparation of aminotetraminesExpiredOct 31, 89Feb 26, 91[C08G]
4996315 Novel synthesis of cyclic compoundsExpiredJan 16, 90Feb 26, 91[C07D]
4994627 Purification of polyoxyalkylene glycolsExpiredMar 16, 90Feb 19, 91[C07C]
4990575 Novel olefin-terminated ureas from polyoxyalkylene amines and isocyanatesExpiredSep 20, 89Feb 05, 91[C08G]
4980514 Ketone derivatives of polyoxypropylene glycolsExpiredDec 01, 89Dec 25, 90[C07C]
4978799 Production of detergent range alcohols and ketones using porphyrin catalystsExpiredOct 30, 89Dec 18, 90[C07C]
4978800 Production of detergent range alcohols and ketones using acetylacetonate catalystsExpiredOct 30, 89Dec 18, 90[C07C]
4970346 Dicyano bis-(1,10-phenanthrolene)iron(II) catalyst useful for detergent range alcohols and ketonesExpiredOct 30, 89Nov 13, 90[C07C]

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