CULLIGAN INTERNATIONAL COMPANY

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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 946
 
  
 
B01D SEPARATION 8126
 
  
 
F16K VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING370
 
  
 
A61L METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES 170
 
  
 
B01J CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 1108
 
  
 
F16C SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OF CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS 169
 
  
 
F17D PIPE-LINE SYSTEMS; PIPE-LINES 113
 
  
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 1205
 
  
 
G05D SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES 183

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0114,903 CONTROL VALVE FOR FLUID TREATMENT APPARATUSSep 30, 16Apr 27, 17[F16K, C02F]
2016/0214,041 REMOTE CONTROL FAUCET FILTER SYSTEMJan 22, 15Jul 28, 16[G05D, B01D]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9616388 Reverse osmosis system with an automated modulated bypassMar 15, 13Apr 11, 17[C02F, B01D]
8758628 Sensor assembly for controlling water softener tanksOct 06, 08Jun 24, 14[B01J, C02F, B01D]
8356628 Electronic bypass system for a fluid treatment systemSep 30, 08Jan 22, 13[F16K, F16C, F17D, C02F]
8302631 Control valve for a fluid treatment systemSep 30, 08Nov 06, 12[F16K, F17D, C02F]
8231791 System and method for controlling multiple sized water softening tanksJan 14, 10Jul 31, 12[C02F]
8226823 Salometer and flow rate sensor assemblyAug 26, 08Jul 24, 12[B01D]
8180489 Communication system for a water softener systemSep 26, 08May 15, 12[C02F]
8133385 Grey water treatment systemFeb 06, 09Mar 13, 12[B01D]
7556738 Method for determining the duration of a brine/slow rinse cycle for a water conditionerMay 26, 05Jul 07, 09[C02F]
7338595 Flow-through tank for water treatmentOct 22, 04Mar 04, 08[B01D]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5863438 Processes for deionization and demineralization of fluidsExpiredMay 15, 97Jan 26, 99[C02F]
5580444 Water quality monitor for a water purification systemExpiredMar 14, 94Dec 03, 96[B01D]
D373815 FaucetExpiredJul 31, 95Sep 17, 96[]
5527450 Water conductivity monitor for a water purification systemExpiredSep 20, 94Jun 18, 96[B01D]
5073255 Water treatment apparatusExpiredOct 05, 89Dec 17, 91[C02F]
5066393 Slotted flow collector/distributor for water treatment tank with one-way valvesExpiredFeb 23, 90Nov 19, 91[B01D]
5057212 Water conductivity monitor and circuit with extended operating lifeExpiredMar 09, 90Oct 15, 91[B01D]
5045197 Reverse osmosis purification system with unitary header manifoldExpiredAug 03, 90Sep 03, 91[B01D]
5037547 Dual stage filter cartridge for a reverse osmosis purification systemExpiredOct 13, 89Aug 06, 91[C02F, B01D]
D315399 Tank shut-off valveExpiredFeb 21, 89Mar 12, 91[]
4971689 Reverse osmosis water purification system with improved pressure relief valueExpiredJul 05, 89Nov 20, 90[B01D]
4880534 Reverse osmosis water purification system with improved pressure relief valveExpiredSep 26, 88Nov 14, 89[B01D]
4880535 Water supply station with multiple water storage reservoirsExpiredFeb 21, 89Nov 14, 89[B01D]
4853117 Purified water supply systemExpiredOct 15, 87Aug 01, 89[B01D]
4834873 Combined reverse osmosis unit and water inflow control valve for a water purification systemExpiredAug 17, 88May 30, 89[B01D]
4830744 Reverse osmosis assembly operating valveExpiredJan 07, 87May 16, 89[B01D]
4776952 Regulated control valve assembly for a water purification systemExpiredNov 30, 87Oct 11, 88[B01D]
4775465 Reverse osmosis assembly operating valveExpiredFeb 11, 87Oct 04, 88[B01D]
4752389 Water purification system with purified water cooling apparatusExpiredMar 30, 87Jun 21, 88[C02F]
4657674 Reverse osmosis assembly including an operating valveExpiredDec 24, 84Apr 14, 87[B01D]

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