POLAR LIGHT LIMITED

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
A47L DOMESTIC WASHING OR CLEANING 1050
 
  
 
B01D SEPARATION 8126
 
  
 
C02F TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE 550
 
  
 
B01J CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 4105
 
  
 
F01D NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES 362
 
  
 
B03C MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS 219
 
  
 
B08B CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL 157
 
  
 
F03B MACHINES OR ENGINES FOR LIQUIDS 123
 
  
 
F04D NON-POSITIVE-DISPLACEMENT PUMPS173
 
  
 
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
7329294 Dirt container for a surface cleaning apparatus and method of useOct 25, 04Feb 12, 08[B01D]
7228593 Appliance which utilizes a magnetic clutch to transmit power from a drive means to a movable member and a magnetic clutchApr 17, 03Jun 12, 07[A47L]
6568900 Pressure swing contactor for the treatment of a liquid with a gasMay 07, 01May 27, 03[F04D]
6526622 Vacuum cleaner actuated by reconfiguration of the vacuum cleanerApr 29, 02Mar 04, 03[A47L]
6527950 Construction of a water treatment applianceJan 12, 01Mar 04, 03[B01D]
6517731 Ozonation processJan 12, 01Feb 11, 03[C02F]
6491811 Sensor for a water treatment apparatusJan 12, 01Dec 10, 02[B01D]
6491815 Construction of a water treatment reservoir for a domestic water treatment applianceJan 12, 01Dec 10, 02[B01D]
6491879 Ozone generatorJan 12, 01Dec 10, 02[B01J]
6482252 Vacuum cleaner utilizing electrostatic filtration and electrostatic precipitator for use thereinJan 07, 00Nov 19, 02[B03C]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7179314 Vacuum cleanerExpiredApr 15, 04Feb 20, 07[B01D]
2006/0196,004 Cleaning head for a surface cleaning apparatusAbandonedOct 21, 05Sep 07, 06[A47L]
2005/0177,974 Vacuum cleaner having two cyclonic cleaning stagesAbandonedJan 18, 05Aug 18, 05[A47L]
2004/0216,266 Construction of a vacuum cleanerAbandonedNov 05, 03Nov 04, 04[A47L]
6782585 Upright vacuum cleaner with cyclonic air flowExpiredOct 05, 00Aug 31, 04[A47L]
6740144 Vacuum cleaner utilizing electrostatic filtration and electrostatic precipitator for use thereinExpiredJan 14, 02May 25, 04[B03C]
2004/0035,093 Vacuum cleanerAbandonedMay 27, 03Feb 26, 04[B01D]
2003/0201,754 Method for operation an appliance and an appliance that uses the methodAbandonedApr 24, 03Oct 30, 03[H02J]
6383266 Vacuum cleaner utilizing electrostatic filtration and electrostatic precipitator for use thereinExpiredJan 07, 00May 07, 02[B03C]
2002/0040,867 Continuous water cycle water treatment apparatusAbandonedOct 05, 01Apr 11, 02[B01J]
6328527 Prandtl layer turbineExpiredJan 08, 99Dec 11, 01[B63H, F03B, F01D, B64C]
6312588 Water purifierExpiredNov 05, 99Nov 06, 01[C02F]
6312606 Method for measuring the degree of treatment of a medium by a gasExpiredNov 07, 00Nov 06, 01[C02F]
6280143 Blade for fluid pumpExpiredNov 30, 99Aug 28, 01[B63H]
6280633 Ozone sensor and method for use of same in water purification systemExpiredDec 01, 99Aug 28, 01[G01N, B01D]
6274053 Ozonation processExpiredJun 16, 00Aug 14, 01[C02F]
6261052 Prandtl layer turbineExpiredJan 08, 99Jul 17, 01[F01D]
6261379 Floating agitator housing for a vacuum cleaner headExpiredJun 01, 99Jul 17, 01[B08B, A47L]
6174127 Prandtl layer turbineExpiredJan 08, 99Jan 16, 01[F01D]
6156100 Method and apparatus for concentrating a gas using a single stage adsorption zoneExpiredFeb 01, 99Dec 05, 00[B01D]

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