BETZDEARBORN INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C02F TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE 2629
 
  
 
C23F NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACES 1323
 
  
 
C07C ACYCLIC OR CARBOCYCLIC COMPOUNDS 12126
 
  
 
C09K MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR1184
 
  
 
B01D SEPARATION 10124
 
  
 
C08F MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 9116
 
  
 
C10G CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION 953
 
  
 
A01N PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF 590
 
  
 
C07D HETEROCYCLIC COMPOUNDS 3159
 
  
 
C08G MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 3117

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6641754 Method for controlling scale formation and deposition in aqueous systemsJun 11, 01Nov 04, 03[C08F]
6444747 Water soluble copolymersMar 15, 01Sep 03, 02[C08F, C08L]
6418958 Dual solid chemical feed systemApr 02, 01Jul 16, 02[G05D]
6258245 Copper leach process aidsNov 19, 99Jul 10, 01[C25C]
6244098 Methods and apparatus for monitoring water process equipmentMar 25, 98Jun 12, 01[G01M]
6200461 Method for inhibiting polymerization of ethylenically unsaturated hydrocarbonsNov 05, 98Mar 13, 01[C07C]
6187262 Inhibition of corrosion in aqueous systemsAug 19, 98Feb 13, 01[C23F]
6170319 Methods and apparatus for monitoring water process equipmentMar 31, 98Jan 09, 01[G01M]
6159302 Neutral phosphate pre-coagulant composition for clarification in white sugar productionJan 13, 99Dec 12, 00[C13D]
6148920 Equalizing subsurface safety valve with injection systemOct 16, 98Nov 21, 00[E21B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2005/0126,073 Lubricity additives for low sulfur hydrocarbon fuelsAbandonedFeb 03, 05Jun 16, 05[C10L]
2003/0192,403 Drainage aid for metal heap leachingAbandonedApr 11, 02Oct 16, 03[C21B]
6585933 Method and composition for inhibiting corrosion in aqueous systemsExpiredMay 03, 99Jul 01, 03[C23F]
6448298 Defoamer and methods of use thereofExpiredMay 15, 00Sep 10, 02[C09K, B01D]
6428597 Heap leach agglomeration/percolation extraction aids for enhanced gold and silver recoveryExpiredNov 03, 00Aug 06, 02[C22B]
2002/0084,210 Method of inhibiting deposits in coke oven gas processing equipmentAbandonedJan 30, 02Jul 04, 02[C10G]
6409799 Copper leach process aidsExpiredNov 19, 99Jun 25, 02[C22B, B01F, B01D, C21B]
6379587 Inhibition of corrosion in aqueous systemsExpiredMay 03, 99Apr 30, 02[C23F, C08K]
6348440 Method of cleaning a metal surfaceExpiredAug 02, 00Feb 19, 02[C11D]
6328943 Inhibition of pyrophoric iron sulfide activityExpiredJul 09, 98Dec 11, 01[C01B]
6290876 Styrene caustic wash extraction aidExpiredJan 27, 00Sep 18, 01[C23G, D01F]
2001/0009,968 Methods and compositions for inhibiting polymerization of ethylenically unsaturated hydrocarbonsAbandonedJan 24, 01Jul 26, 01[C07C]
6261341 Copper leach process aidsExpiredNov 19, 99Jul 17, 01[C22B]
6238557 Injection quill for water treatmentExpiredSep 20, 00May 29, 01[C02F]
6187227 Thiacrown ether compound corrosion inhibitors for alkanolamine unitsExpiredJun 02, 98Feb 13, 01[C09K, C10G, C23F]
6165372 Injection quill for water treatmentExpiredAug 11, 99Dec 26, 00[C02F]
6159374 Softened brine treatment of crude oilExpiredSep 21, 99Dec 12, 00[C02F]
6146465 Methods for clarifying sugar solutionsExpiredJan 13, 99Nov 14, 00[C13D]
6142160 Method for dispersing and removing sludge contained in a storage tankExpiredMay 21, 99Nov 07, 00[B08B]
6136220 Compositions for treating paint spray booth waterExpiredAug 31, 99Oct 24, 00[C02F]

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