USFILTER CORPORATION

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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 451
 
  
 
B01D SEPARATION 1133
 
  
 
C10L FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUEFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS 141
 
  
 
C12M APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY 148
 
  
 
G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR166
 
  
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 1205

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7572627 System of processing mixed-phase streamsJul 14, 03Aug 11, 09[C12M]
6389876 Material testing machine, test piece attachment set for the material testing machine, and method of conducting a material test with the material testing machineJun 16, 00May 21, 02[G01M]
6293975 Fuel compositionJul 29, 98Sep 25, 01[C10L]
RE37181 Process for removal of dissolved hydrogen sulfide and reduction of sewage BOD in sewer or other waste systemsNov 24, 98May 22, 01[C02F]
6149819 Air and water purification using continuous breakpoint halogenation and peroxygenationMar 02, 99Nov 21, 00[C02F]
6143184 Air and water purification using continuous breakpoint halogenationMar 02, 99Nov 07, 00[C02F]
RE36651 Process for removal of dissolved hydrogen sulfide and reduction of sewage BOD in sewer or other waste systemsMay 09, 95Apr 11, 00[C02F]
5307697 Continuous, automated, multi-stream sample collection and analysisMay 14, 92May 03, 94[G01N]
5174859 Method for treating mechanical pulp plant effluentApr 10, 91Dec 29, 92[B01D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7001516 Process for removing phosphorus from wastewater utilizing a triple basin wastewater treatment systemExpiredNov 05, 04Feb 21, 06[C02F]
2006/0032,805 Heating plate for vacuum filter pressAbandonedSep 12, 03Feb 16, 06[B01D]
6887452 System and method for precipitating saltsExpiredOct 31, 00May 03, 05[C01B]
6830689 Process for removing phosphorus from wastewater utilizing a triple basin wastewater treatment systemExpiredMay 05, 03Dec 14, 04[C02F]
6830698 Free radical generator and methodWithdrawnFeb 26, 02Dec 14, 04[C02F]
2004/0224,088 Calcium hypochlorite of reduced reactivityAbandonedJun 15, 04Nov 11, 04[B05D]
2004/0149,661 Effect of cations on activated sludge characteristicsAbandonedJan 23, 04Aug 05, 04[C02F]
2004/0112,838 System and method for optimized control of multiple oxidizersAbandonedSep 23, 03Jun 17, 04[C02F]
2004/0066,702 Wall mounted compost irrigation systemAbandonedSep 30, 02Apr 08, 04[B05B]
2003/0183,563 Non-metallic tooth segment and bar rack designAbandonedApr 29, 03Oct 02, 03[E02B]
2002/0144,954 Electrodeionization device and methods of useAbandonedSep 18, 01Oct 10, 02[C02F]
2002/0139,689 Electrode coating and method of use in a reverse polarity electrolytic cellAbandonedFeb 01, 01Oct 03, 02[C25B]
2002/0104,802 System and methods for regeneration of mixed bed demineralizersAbandonedSep 25, 01Aug 08, 02[B01D]
2002/0079,269 Removing metal ions from wastewaterAbandonedOct 31, 01Jun 27, 02[B01D]
6409926 Air and water purification using continuous breakpoint halogenation and peroxygenationExpiredNov 06, 00Jun 25, 02[G01N]
2002/0070,181 Filter assemblyAbandonedDec 13, 00Jun 13, 02[B01D]
2002/0059,836 Device for measuring a volume of flowable material, screw conveyor and flap assemblyAbandonedNov 15, 01May 23, 02[G01F]
6375851 Continuous liquid purification processExpiredMay 05, 00Apr 23, 02[C02F]
6355157 Process for real-time detection and inhibition of localized corrosionExpiredJun 22, 00Mar 12, 02[G01N]
6305555 Wear shoe for sludge collectorExpiredMar 31, 00Oct 23, 01[B01D]

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