WITCO CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C08G MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 9111
 
  
 
C07F ACYCLIC, CARBOCYCLIC, OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM, OR TELLURIUM 664
 
  
 
C08J WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER- TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C C08F, C08G or C08H 573
 
  
 
C08K USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS 597
 
  
 
B01J CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 4105
 
  
 
C10M LUBRICATING COMPOSITIONS 346
 
  
 
D06M TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS 323
 
  
 
C03C CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS258
 
  
 
C07D HETEROCYCLIC COMPOUNDS 2160
 
  
 
C08F MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 2123

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6211345 Synthesis of cyclic sulfur silanesDec 22, 99Apr 03, 01[C07F]
6162453 C.sub.7 -C.sub.12 Diol & Diol alkoxylates as coupling agents for surfactant formulationsSep 03, 99Dec 19, 00[A01N, B01F, C08L, C11D]
RE36330 Noble metal supported on a base metal catalystJul 16, 98Oct 05, 99[B01J]
5948927 Bis-silyl tertiary aminesApr 01, 98Sep 07, 99[C07F]
5880189 Liquid PVC stabilizers and lubricantsMay 02, 97Mar 09, 99[C08K]
5877268 Polyethers and polysiloxane copolymers manufactured with double metal cyanide catalystsOct 13, 98Mar 02, 99[C08G]
5869727 Vacuum process for the manufacture of siloxane-oxyalkylene copolymersAug 08, 97Feb 09, 99[C09F]
5856369 Polyethers and polysiloxane copolymers manufactured with double metal cyanide catalystsJul 29, 97Jan 05, 99[C08G]
5821274 Stabilizer and blowing agent useful for rigid foamed PVCJul 21, 97Oct 13, 98[C08J]
5773848 Thin film transistor with light antireflection layerDec 27, 96Jun 30, 98[H01L]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6221954 Cationic polyurethane compositions, quaternary ammonium salts and methods for their preparationExpiredJun 05, 95Apr 24, 01[C08J, C07C, C08L, C08K]
6039800 Production of foamed compositions containing gypsumExpiredMay 14, 98Mar 21, 00[C04B]
5892090 Organic peroxide stabilization with oximesExpiredFeb 27, 98Apr 06, 99[C07C]
5866030 Enhanced hydrocarbon lubricants for use with immiscible refrigerantsExpiredJul 21, 97Feb 02, 99[C09K]
5856412 Process for crosslinking thermoplastic polymers and crosslinking system used thereinExpiredMay 02, 97Jan 05, 99[C08J, C08F, C08L]
5792383 Reduction of enterfacial tension between hydrocarbon lubricant and immiscible liquid refrigerantExpiredSep 07, 94Aug 11, 98[C09K]
5719304 Organic peroxide stabilization with phosphomolybdic acidExpiredMay 31, 96Feb 17, 98[C07C]
5714626 Organic peroxide stabilization with .beta.-dicarbonyl compoundsExpiredMay 31, 96Feb 03, 98[C07C]
5705708 Inhibition of discoloration of cumene hydroperoxideExpiredSep 23, 96Jan 06, 98[C07C]
5696291 Cationic polyurethane compositions, quaternary ammonium salts and methods for their preparationExpiredOct 10, 96Dec 09, 97[C07C]
5688847 Polycyclic fluorophosphites useful as stabilizersExpiredNov 07, 96Nov 18, 97[C07F, C07K]
5688978 Preparation of beta hydroxylakyl-terminally branched fatty acid amidesExpiredMay 12, 95Nov 18, 97[C07C]
5656202 Method for making overbased PVC stabilizerExpiredJun 20, 95Aug 12, 97[C23F]
5654463 Organic peroxide stabilization with .alpha.-hydroxyalkyl peroxidesExpiredMay 31, 96Aug 05, 97[C07C]
5654464 Organic peroxide stabilization with cyclic .alpha.-diketone compoundsExpiredMay 31, 96Aug 05, 97[C07C]
5561187 Cationic polyurethane compositions, quaternary ammonium salts and methods for their preparationExpiredMay 15, 95Oct 01, 96[C08J, C08G, C08L, C08K]
5545675 Process for the preparation of polyester-polyurethane flexible foams which do not give rise to the formation of misting and use of the said foamsExpiredFeb 09, 95Aug 13, 96[C08G]
5514827 Silylated cyclic hydrocarbons and their usesExpiredJan 25, 95May 07, 96[C07F]
5429465 Retainer structure for preventing relative rotation between fastener elementsExpiredApr 04, 94Jul 04, 95[F16B]
5391395 Method of preparing substrates for memory disk applicationsExpiredDec 30, 92Feb 21, 95[C23C]

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