ClassID:

86630

C02F2209/42 - page 3 - CPC Classification

Classification description:

Controlling or monitoring parameters in water treatment Liquid level

Recent Application in this class:
#601
20110266201
2011-11-03

Site drainer

#602
20110240565
2011-10-06

Apparatus and method for treating ship ballast water using electron beams

#603
20110240535
2011-10-06

SYSTEM FOR CONTROLLING FLUID LEVELS IN A WASTEWATER TREATMENT BIOLOGICAL REACTOR

#604
20110233149
2011-09-29

Skimmer, barge and methods for recovering and transferring heavy oil or bitumen

#605
20110233143
2011-09-29

Mobile flowback water treatment system

#606
20110204004
2011-08-25

Process for Water Treatment and Recovery of Industrial Waste Water

#607
20110203983
2011-08-25

Treatment device and treatment bag

#608
20110203915
2011-08-25

Solar distillation device

#609
20110203686
2011-08-25

Method and apparatus for waste water level indication

#610
20110192805
2011-08-11

Devices and methods for water removal in distillation columns

#611
20110186507
2011-08-04

System and method for processing and reusing graywater including for use in a home and garden

#612
20110174706
2011-07-21

Systems and methods for water harvesting and recycling

#613
20110168608
2011-07-14

WATER TREATMENT APPARATUS

#614
20110139691
2011-06-16

Pressurized wastewater effluent chlorination system

#615
20110120921
2011-05-26

Circulation type water purifier

#616
20110114491
2011-05-19

ENHANCED-SOLUBILITY WATER

#617
20110108471
2011-05-12

Water treatment apparatus and method

#618
20110100925
2011-05-05

Washbox

#619
20110100904
2011-05-05

Method and unit for the purification of wastewater with aerobic granular sludge

#620
20110100888
2011-05-05

Washbox

#621
20110089120
2011-04-21

Processing captured vehicle fluid

#622
20110068060
2011-03-24

Waste water treatment systems and methods

#623
20110049050
2011-03-03

METHOD OF CONTROLLING A SEPARATION UNIT HAVING A REVERSE OSMOSIS ELEMENT AND REVERSE OSMOSIS UNIT

#624
20110042481
2011-02-24

ATOMIZING APPARATUS

#625
20110042311
2011-02-24

MEMBRANE SYSTEM

#626
20110036760
2011-02-17

GREY WATER REGENERATION SYSTEM

#627
20110031171
2011-02-10

Solar Powered Utility Unit

#628
20110024338
2011-02-03

Grey water diversion system

#629
20110017671
2011-01-27

WATER TREATMENT SYSTEM AND METHOD

#630
20110011268
2011-01-20

Humidifier

#631
20110006014
2011-01-13

System and Method For Process and Waste Water Filtration

#632
20110005794
2011-01-13

In-water discharging apparatus

#633
20110005261
2011-01-13

Air conditioner and air conditioning system

#634
20100326906
2010-12-30

Infiltration/inflow control for membrane bioreactor

#635
20100314330
2010-12-16

Method and device for treating an effluent

#636
20100314302
2010-12-16

Self contained dissolved air flotation system

#637
20100300868
2010-12-02

DEVICE FOR PRODUCING DRINKING WATER

#638
20100292844
2010-11-18

Self-contained portable multi-mode water treatment system and methods

#639
20100288710
2010-11-18

Method and apparatus for programably treating water in a water cooler

#640
20100288627
2010-11-18

ATOMIZING APPARATUS

#641
20100282657
2010-11-11

Water dispensers

#642
20100252504
2010-10-07

Method for controlling microbial contamination in water

#643
20100243580
2010-09-30

HYPEROXIDATION ADVANCED OXIDATIVE TREATMENT OF WATER

#644
20100243544
2010-09-30

Sewage treatment apparatus and sewage reuse system

#645
20100237017
2010-09-23

Two bottle filter connector system with removeable ring

#646
20100224577
2010-09-09

Secondary filtering and discharging of wastewater

#647
20100215553
2010-08-26

UV disinfection system

#648
20100200476
2010-08-12

WASTEWATER TREATMENT APPARATUS

#649
20100196199
2010-08-05

SYSTEM AND METHOD FOR TREATMENT OF PATHOGENS IN DRIED SEWAGE SLUDGE

#650
20100193448
2010-08-05

Enhanced water treatment for reclamation of waste fluids and increased efficiency treatment of potable waters

#651
20100193430
2010-08-05

Systems and methods for treating oil, fat and grease in collection systems

#652
20100187168
2010-07-29

PERCOLATING FILTER SYSTEM WITH A REMOVABLE CARTRIDGE

#653
20100176054
2010-07-15

Method for remediating solids in waste lifting stations

#654
20100170854
2010-07-08

Sludge Dewatering and Drying

#655
20100163468
2010-07-01

WATER TREATMENT APPARATUS

#656
20100147772
2010-06-17

Screen blockage measurement and flow performance optimization system

#657
20100126932
2010-05-27

Method and apparatus for treatment of contaminated liquid

#658
20100125938
2010-05-27

INSTALLATION FOR RECYCLING SANITARY WATER

#659
20100122945
2010-05-20

Grey water conservation mechanism

#660
20100122944
2010-05-20

Grey water filtering system

#661
20100122913
2010-05-20

Marine wastewater treatment

#662
20100122741
2010-05-20

Grey water control system

#663
20100122740
2010-05-20

Grey water holding tank

#664
20100122739
2010-05-20

Grey water distributed control system

#665
20100122738
2010-05-20

Excess grey water disposal

#666
20100105128
2010-04-29

Portable high rate anaerobic digester apparatus and method of operation

#667
20100096338
2010-04-22

Management arrangement

#668
20100096323
2010-04-22

METHODS OF REDUCING THE COST REQUIRED FOR COMING INTO COMPLIANCE

#669
20100096305
2010-04-22

Wastewater treatment apparatus

#670
20100096302
2010-04-22

SYSTEM FOR MONITORING THE PERFORMANCE OF FLUID TREATMENT CARTRIDGES

#671
20100089826
2010-04-15

METHODS OF REDUCING THE TIME REQUIRED FOR COMING INTO COMPLIANCE

#672
20100089824
2010-04-15

Methods of reducing the amount of settling aid

#673
20100089822
2010-04-15

Micro gas attendant system

#674
20100086445
2010-04-08

Chemical solution feeder and method

#675
20100065414
2010-03-18

WATER HEATING AND DISTILLATION ARRANGEMENT

#676
20100051546
2010-03-04

WATER TREATMENT SYSTEMS AND METHODS

#677
20100051542
2010-03-04

Wastewater treatment system and method

#678
20100051523
2010-03-04

LoweFlow filter wastewater treatment system

#679
20100051515
2010-03-04

Apparatus and method for efficient particle to gas bubble attachment in a slurry

#680
20100018913
2010-01-28

Filter and sterilization apparatus

#681
20100012560
2010-01-21

Chemical solution feeder and method

#682
20100012557
2010-01-21

SEPTIC TANK WASTEWATER TREATMENT SYSTEM

#683
20100006513
2010-01-14

Method, device and system for water treatment

#684
20100000851
2010-01-07

Method and apparatus for water distillation and recovery

#685
20090314722
2009-12-24

Screen blockage measurement and flow performance optimization system

#686
20090313996
2009-12-24

System for decontaminating water and generating water vapor

#687
20090301966
2009-12-10

Method for purifying wastewater

#688
20090294381
2009-12-03

METHODS FOR CONTROLLING PH IN WATER SANITIZED BY CHEMICAL OR ELECTROLYTIC CHLORINATION

#689
20090288999
2009-11-26

Water level control device for reverse osmosis water purifying system

#690
20090277848
2009-11-12

Water recycling apparatus and method

#691
20090266770
2009-10-29

METHOD FOR MAINTAINING THE WATER BALANCE IN A WATER PURIFICATION SYSTEM

#692
20090261037
2009-10-22

Biomass treatment of organic waste or waste water

#693
20090255871
2009-10-15

Method and apparatus for on-site treatment of waste water

#694
20090255862
2009-10-15

Eco-treatment system

#695
20090250407
2009-10-08

System and method of water treatment

#696
20090250398
2009-10-08

SEAWATER DESALINATION SYSTEM AND METHOD

#697
20090250396
2009-10-08

DRAINAGE WATER-TREATING METHOD AND DRAINAGE WATER-TREATING APPARATUS

#698
20090242419
2009-10-01

ON-SITE ON-DEMAND CHLORINE GAS GENERATOR

#699
20090235954
2009-09-24

Method and a washing system for washing turbines

#700
20090235676
2009-09-24

SYSTEM AND METHOD FOR PROVIDING PURIFIED WATER

#701
20090211974
2009-08-27

WATER CLARIFYING APPARATUS AND IMPLEMENTING METHOD

#702
20090200215
2009-08-13

Integrated portable water purifier

#703
20090181107
2009-07-16

SOLUTION HAVING BIOCIDAL ACTIVITY

#704
20090178965
2009-07-16

Collection and use system of reclaimed water in family life

#705
20090178555
2009-07-16

Pressure in line degassing process in water treatment

#706
20090173686
2009-07-09

Water treatment device

#707
20090166296
2009-07-02

WASTEWATER TREATMENT PLANT

#708
20090166276
2009-07-02

Water treatment system

#709
20090159514
2009-06-25

Reactor comprising a stack of filter plates

#710
20090152205
2009-06-18

METHOD AND APPARATUS FOR PATHOGENIC AND CHEMICAL REDUCTION IN FLUID WASTE

#711
20090152183
2009-06-18

Disinfection System Improvements

#712
20090139928
2009-06-04

Method and apparatus for biologically processing fluid

#713
20090139325
2009-06-04

Capacitive probes and sensors, and applications therefor, and multimode wireless devices

#714
20090134341
2009-05-28

Fluid ultraviolet sterilization system

#715
20090127119
2009-05-21

ELECTRONIC COMPONENTS ASSOCIATED AND APPARATUS FOR DEIONIZATION AND ELECTROCHEMICAL PURIFICATION AND REGENERATION OF ELECTRODES

#716
20090120851
2009-05-14

Water treatment system with moisture detector

#717
20090112364
2009-04-30

Chemical treatment system and method

#718
20090110563
2009-04-30

Power recovery system

#719
20090107921
2009-04-30

Chemical treatment system and method

#720
20090107897
2009-04-30

AUTOMATIC FLUSHING APPARATUS OF MEMBRANE FILTER IN WATER PURIFIER

#721
20090095693
2009-04-16

Concentrator System and Method of Water Filtration and Recycling to Drive Industrial Fabrication Process

#722
20090095691
2009-04-16

Internal UV treatment of potable water systems

#723
20090082906
2009-03-26

System and method for providing aqueous stream purification services

#724
20090078652
2009-03-26

System and method for purifying an aqueous stream

#725
20090071909
2009-03-19

Washbox

#726
20090071901
2009-03-19

SYSTEM AND METHOD FOR FILTERING LIQUIDS

#727
20090071843
2009-03-19

Electrolyzed water producing method and apparatus

#728
20090050572
2009-02-26

Enhanced water treatment for reclamation of waste fluids and increased efficiency treatment of potable waters

#729
20090050570
2009-02-26

Method for water treatment by flocculation/settling using ballasted floc degritting of the sludge

#730
20090026120
2009-01-29

Wastewater treatment system

#731
20090020474
2009-01-22

Wastewater treatment equipment and method of wastewater treatment

#732
20090008338
2009-01-08

Septic tanks

#733
20090008243
2009-01-08

CHLORINE GENERATOR

#734
20090001002
2009-01-01

Wastewater purification plant by means of plants

#735
20080314841
2008-12-25

Sewage treatment control device, method, and sewage treatment system

#736
20080308507
2008-12-18

Water Purification Apparatus

#737
20080302651
2008-12-11

Performance Maintaining Method For Electrolyzed Functional Water Generating Apparatus

#738
20080290011
2008-11-27

Wireless liquid level sensing assemblies and grinder pump assemblies employing the same

#739
20080277353
2008-11-13

Fluid treatment device

#740
20080277338
2008-11-13

Methods of treatment of ground water

#741
20080272064
2008-11-06

Rainwater treatment process

#742
20080272035
2008-11-06

System for Water Treatment

#743
20080267824
2008-10-30

Control system for monitoring salt levels in a brine tank

#744
20080264877
2008-10-30

Method and apparatus for programably treating water in a water cooler

#745
20080264855
2008-10-30

Method for treating wastewater

#746
20080264843
2008-10-30

Manufacturing device and application device for liquid containing micro-nano bubbles

#747
20080251453
2008-10-16

Method and system for aerating wastewater for re-use

#748
20080245748
2008-10-09

Modular flameless waste treatment method

#749
20080245744
2008-10-09

In-line waste disinfection method

#750
20080245714
2008-10-09

Plant-based sewage treatment system for purifying wastewater

#751
20080237098
2008-10-02

Magnetic separation filtering and cleaning apparatus

#752
20080217065
2008-09-11

Method and apparatus for electrophoretic separation of solids and water from oil based mud

#753
20080210630
2008-09-04

METHODS AND KITS FOR BIOREMEDIATION OF CONTAMINATED SOIL

#754
20080210620
2008-09-04

Device for treating fluids, especially waste water, comprising a stack of disks

#755
20080210610
2008-09-04

Apparatus for treating wastewater

#756
20080190868
2008-08-14

Water filtration and recycling for fabrication equipment

#757
20080185320
2008-08-07

System for deodorizing and neutralizing waste-water

#758
20080185293
2008-08-07

Method and Apparatus for Decontamination of Fluid with One or More High Purity Electrodes

#759
20080164192
2008-07-10

Device for the purification of contaminated liquid

#760
20080110417
2008-05-15

Submerged combustion disposal of produced water

#761
20080105624
2008-05-08

Method for Oxidative Treatment of Aqueous Liquids

#762
20080105621
2008-05-08

Method for chemistry control in cooling systems

#763
20080099394
2008-05-01

Distributor assembly for pressure vessel and method of installation

#764
20080093287
2008-04-24

Water pollution prevention and remediation apparatus

#765
20080083674
2008-04-10

Apparatus for and Method of Dosing a Wastewater Treatment System

#766
20080083667
2008-04-10

Apparatus for Dosing a Wastewater Treatment System

#767
20080060430
2008-03-13

Liquid level measurement device and installation incorporating the same

#768
20080044320
2008-02-21

Fluid treatment system

#769
20080041784
2008-02-21

Method for removal of contaminants from water

#770
20080041776
2008-02-21

Downwash process bioremediation system

#771
20080035547
2008-02-14

METHODS AND APPARATUS FOR FILTERING WATER

#772
20080035539
2008-02-14

Pressurized wastewater effluent chlorination system

#773
20080023397
2008-01-31

Biomass treatment of organic waste or water waste

#774
20080023384
2008-01-31

Self-powered settling and evaporation tank apparatus

#775
20080006582
2008-01-10

Method for preparing a composition for control of microbial contamination in drinking water

#776
20080000844
2008-01-03

Wastewater disinfection apparatus and methods

#777
20070295204
2007-12-27

Systems and methods for flow-through treatment of contaminated fluids

#778
20070272622
2007-11-29

SANITIZING METHODS AND SYSTEMS

#779
20070256964
2007-11-08

Separator device

#780
20070246414
2007-10-25

Water treatment apparatus and method

#781
20070241053
2007-10-18

Method of treating at a high-temperature waste liquid from production plant for hydrocarbons or oxygen-containing compounds

#782
20070207053
2007-09-06

Salt dispensing system

#783
20070199902
2007-08-30

Methods of hydrogen sulfide treatment

#784
20070199872
2007-08-30

Hydrogen sulfide treatment system

#785
20070175823
2007-08-02

Sequential batch reactor and wastewater treatment process

#786
20070175806
2007-08-02

Disinfectant system for use with residential aerobic wastewater treatment plants

#787
20070175805
2007-08-02

Disinfectant system for use with residential aerobic wastewater treatment plants

#788
20070158208
2007-07-12

Apparatus and methods for treating ballast water by using electrolysis of natural seawater

#789
20070138090
2007-06-21

Method and apparatus for treating wastewater

#790
20070125959
2007-06-07

Open-channel radiation sterilization system

#791
20070125715
2007-06-07

Flotation separator

#792
20070114442
2007-05-24

Fluid ultraviolet sterilization system

#793
20070108064
2007-05-17

Solution having biocidal activity

#794
20070090030
2007-04-26

Complete Water Management Process and System

#795
20070084808
2007-04-19

Mobile water treatment system

#796
20070068856
2007-03-29

Wastewater treatment apparatus

#797
20070062867
2007-03-22

Water filtration and recycling for fabrication equipment

#798
20070051640
2007-03-08

Electrochemical treatment of an aqueous solution

#799
20070045191
2007-03-01

Auto-regenerable hot and cold water softener

#800
20070045159
2007-03-01

Water purifying system with removable storage tank

#801
20070017857
2007-01-25

Liquid disinfectant system for use with aerobic wastewater treatment plants

#802
20070012631
2007-01-18

Methods for controlling pH in water sanitized by chemical or electrolytic chlorination

#803
20070012629
2007-01-18

Arrangement for separating environmentally harmful substances from a polluted mass

#804
20070000840
2007-01-04

Self contained dissolved air flotation system

#805
20060291839
2006-12-28

Water treatment system and process

#806
20060243647
2006-11-02

Apparatus for providing demineralized water

#807
20060241874
2006-10-26

Monitoring system

#808
20060237318
2006-10-26

Method and apparatus for decontamination of fluid

#809
20060231502
2006-10-19

Mineral water producing system

#810
20060219632
2006-10-05

Method for treating wastewater

#811
20060213840
2006-09-28

Dual-cell mechanical flotation system with intermittent skimming

#812
20060207947
2006-09-21

Method and apparatus for recycling wash chemicals

#813
20060207869
2006-09-21

Water treatment device and method

#814
20060192136
2006-08-31

UV water disinfector

#815
20060191829
2006-08-31

Remote water dispensing device and methods for operating such remote water dispensing devices

#816
20060169645
2006-08-03

Water treatment systems and techniques principally for use on-board aircraft

#817
20060163169
2006-07-27

Methods and apparatus for the treatment of fluids

#818
20060157391
2006-07-20

System for monitoring the performance of fluid treatment cartridges

#819
20060151362
2006-07-13

Septic Tank Fluid Level Signal

#820
20060144769
2006-07-06

Greywater recycling system

#821
20060144241
2006-07-06

Method, device, and system for controlling dissolved amount of gas

#822
20060138032
2006-06-29

In-water discharging core and sterilizing water supplying system using said core

#823
20060126426
2006-06-15

Process for operating a water recovery plant

#824
20060112711
2006-06-01

System to produce drinking water

#825
20060096917
2006-05-11

Treatment of water

#826
20060081542
2006-04-20

Enhanced-solubility water

#827
20060070959
2006-04-06

Poultry processing water recovery and re-use process

#828
20060070947
2006-04-06

Method and apparatus for treating water

#829
20060060512
2006-03-23

System for monitoring the performance of fluid treatment cartridges

#830
20060060233
2006-03-23

Method and a washing system for washing turbines

#831
20060054566
2006-03-16

System and method for reducing deionized water consumption

#832
20060054552
2006-03-16

Membrane bioreactor, process and aerator

#833
20060054510
2006-03-16

Method and apparatus for generating hypochlorous acid (HOCL)

#834
20060032821
2006-02-16

Treatment of iron contaminated liquids with an activated iron solids (AIS) process

#835
20060021943
2006-02-02

Urban runoff water treatment methods and systems

#836
20060021924
2006-02-02

Wastewater treatment system

#837
20060005561
2006-01-12

Condensed water production system

#838
20050279684
2005-12-22

Water flow rate self-tuning device for pressurized gas-water mixer

#839
20050279625
2005-12-22

Multifunctional oxygenated water machine

#840
20050274663
2005-12-15

[Air and Water Conditioning System and Filter Media]

#841
20050274659
2005-12-15

Apparatus for automatically replenishing deionized pure water

#842
20050274657
2005-12-15

Disinfectant system for use with residential aerobic wastewater treatment plants

#843
20050274656
2005-12-15

Disinfectant system and method for the chemical treatment of wastewater

#844
20050269254
2005-12-08

[Air and Water Purifying System And Filter Media]

#845
20050258089
2005-11-24

Method for removing oil, fat and grease from water

#846
20050244315
2005-11-03

Solid product dissolver and method of use thereof

#847
20050242044
2005-11-03

System, method, and apparatus for disinfecting wastewater systems

#848
20050230299
2005-10-20

Waste water purification apparatus and waste water purification method including the regeneration of used coagulant

#849
20050229700
2005-10-20

Apparatus and methods for monitoring water consumption and filter usage

#850
20050229699
2005-10-20

Apparatus and methods for monitoring water consumption and filter usage

#851
20050218083
2005-10-06

Water purification

#852
20050218054
2005-10-06

Apparatus for producing sterilized water

#853
20050205479
2005-09-22

Greywater recycling apparatus

#854
20050189275
2005-09-01

Liquid level sensor with odor reduction for waste holding tanks

#855
20050183999
2005-08-25

Water treatment system

#856
20050167371
2005-08-04

Water filtration and recycling for stone fabrication equipment for exterior and architectural stone

#857
20050167345
2005-08-04

Management arrangement

#858
20050150843
2005-07-14

Method for treatment of liquids, in particular, for purification of contaminated water

#859
20050126199
2005-06-16

Device for conditioning water produced by air conditioning or environmental dehumidification apparatuses or plants

#860
20050109610
2005-05-26

Electrolytic water generation apparatus having stable performance of electrolytic water generation

#861
20050103721
2005-05-19

Reduced pressure water filtration system

#862
20050098496
2005-05-12

Process and assembly for the treatment of waste water on ships

#863
20050092931
2005-05-05

UV water disinfector

#864
20050077244
2005-04-14

Method and composition for control of microbial contamination in drinking water produced by condensation

#865
20050077219
2005-04-14

Process and device for the treatment of effluents produced during wine manufacture

#866
20050067275
2005-03-31

Water treatment apparatus that can reduce water treatment time

#867
20050067151
2005-03-31

Increasing evaporation of a process water pond

#868
20050061725
2005-03-24

Membrane bioreactor, process and aerator

#869
20050058448
2005-03-17

Photographic developer effluent transfer station and drain wash

#870
20050056594
2005-03-17

Method and system for the manufacture of pharmaceutical water

#871
20050056581
2005-03-17

System for recycling washing machine water

#872
20050040113
2005-02-24

Stormwater treatment system

#873
20050040104
2005-02-24

Method, apparatus and system for removal of contaminants from water

#874
20050040024
2005-02-24

Point of use water purification method and apparatus

#875
20050029200
2005-02-10

Method and apparatus for recycling wash chemicals

#876
20050029093
2005-02-10

Electrochemical activaton system suitable for producing electrochemically-activated solutions through use of an electrolytic cell exchange module

#877
20050025573
2005-02-03

Liquid control structure

#878
20050017380
2005-01-27

Sanitization system and system components

#879
20050011743
2005-01-20

Installation used to obtain salt-free sea water at a low temperature with continuous operation and enthalpy recovery

#880
20050000911
2005-01-06

Internal UV treatment of potable water systems

#881
20050000902
2005-01-06

System for reclaiming water softener brine waste

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2005-01-06

Fluid diverter for a wastewater treatment system

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18888218
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Aqua-ozone hygienization

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18145422
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Device for hydroxyl-radical-based water disinfection and purification and method of use

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17977874
2024-12-31

Systems and methods of intensive recirculating aquaculture

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17893219
2023-08-08

Septic system

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17847855
2025-11-04

Apparatus for water filtration, ozone, and ultraviolet disinfection

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17681685
2022-10-04

Pet hydration system

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17402433
2022-04-05

Pet hydration system

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17061387
2024-03-26

Mopping system with filtration

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16992538
2020-11-10

Hybrid potable water generator

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16685842
2022-07-12

Portable apparatus and method for treating wastewater

#893
16601783
2020-06-30

Water purification system

#894
16455383
2021-01-05

Water purification system

#895
16350786
2020-06-09

Apparatus for heating and distillation of fluid

#896
16137156
2019-05-14

Filter backwash control system for a water or wastewater treatment system to conserve water during the filter backwash process

#897
16016123
2019-10-29

Automated sulfur burner for agricultural irrigation

#898
15930494
2021-01-05

System and method for reducing water pump cycling and TDS creep when producing purified water

#899
15707015
2019-11-12

Pump-assisted water filtration system

#900
15611336
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Wastewater disinfection system