ClassID:

86650

C02F2303/02 - page 2 - CPC Classification

Classification description:

Specific treatment goals Odour removal or prevention of malodour

Recent Application in this class:
#301
20120298576
2012-11-29

Method and system for wastewater treatment and disposal

#302
20120279919
2012-11-08

MULTISTAGE BIOLOGICAL REACTOR

#303
20120267318
2012-10-25

WATER TREATMENT SYSTEMS AND METHODS

#304
20120267289
2012-10-25

Reactor for Versatile Effluent Treatment System

#305
20120261352
2012-10-18

Grey water dividing and treatment

#306
20120213662
2012-08-23

Synergistic methods for odor control

#307
20120152853
2012-06-21

SYSTEM AND METHOD FOR REDUCING EMISSIONS IN A HOG CONFINEMENT FACILITY

#308
20120149076
2012-06-14

INTEGRATION OF FERMENTAITON WITH MEMBRANE

#309
20120145624
2012-06-14

WATER FILTER CARTRIDGE

#310
20120141407
2012-06-07

Chemical optimization during wastewater treatment, odor control and uses thereof

#311
20120111800
2012-05-10

METHOD AND SYSTEM FOR HARVESTING WATER, ENERGY AND BIOFUEL

#312
20120097893
2012-04-26

COMPOSITIONS FOR REDUCING HYDROGEN SULFIDE IN WATER TREATMENT SYSTEMS OR OTHER SYSTEMS THAT COLLECT AND TRANSMIT BI-PHASIC FLUIDS

#313
20120097889
2012-04-26

Wastewater treatment compositions

#314
20120091045
2012-04-19

System and process for removing nitrogen compounds and odors from wastewater and wastewater treatment system

#315
20120080374
2012-04-05

OZONE AND ANAEROBIC BIOLOGICAL PRETREATMENT FOR A DESALINATION PROCESS

#316
20120076701
2012-03-29

Environmental sanitizer and odor remover for purification of foods, surfaces, air and water with disposable ozone generation electrode, pressure/flow adaptable venturi injector and aqueous phase filter device

#317
20120074057
2012-03-29

SEPTAGE TREATMENT SYSTEM AND PROCESS

#318
20120071569
2012-03-22

PROCESS FOR PRODUCING GEL OF CARBOXYMETHYL CELLULOSE ALKALI METAL SALT

#319
20120067829
2012-03-22

Water treatment feeder device and a water treatment feeder system

#320
20120067793
2012-03-22

Water treatment feeder device and a water treatment feeder system

#321
20120051964
2012-03-01

Deodorant for treating sediment in-situ and the associated facilities and method

#322
20120034286
2012-02-09

STABILIZATION OF BIOSOLIDS USING IRON NANOPARTICLES

#323
20120017461
2012-01-26

Installation for the treatment of sludges

#324
20120012188
2012-01-19

Slurry feed system and method

#325
20120006746
2012-01-12

System and method for reducing emissions in a hog confinement facility

#326
20110272365
2011-11-10

REMOVAL OF HYDROGEN SULFIDE FROM WATER

#327
20110271835
2011-11-10

Aromatic imine compounds for use as sulfide scavengers

#328
20110253636
2011-10-20

Chemical administrator for controllably treating wastewater

#329
20110253549
2011-10-20

Washing apparatus and method of deodorizing washing water

#330
20110247985
2011-10-13

Hybrid chemical/mechanical method and apparatus for inactivating and removing pharmaceuticals and other contaminants from water

#331
20110233146
2011-09-29

SYNERGISTIC WASTEWATER ODOR CONTROL COMPOSITION, SYSTEMS, AND RELATED METHODS THEREFOR

#332
20110233136
2011-09-29

Water Treatment Process

#333
20110226683
2011-09-22

Sewage treatment system

#334
20110223073
2011-09-15

Ozone oxidation accelerator, ozone oxidation accelerator composition, and ozone treatment method

#335
20110221078
2011-09-15

Humidifier

#336
20110210066
2011-09-01

WASTE FLUID TREATMENT USING FILAMENTOUS FUNGUS OR ACTINOMYCETE

#337
20110203984
2011-08-25

Apparatus for deodorizing sewage treatment plant sludge by using native microorganisms

#338
20110200954
2011-08-18

Renewable energy microgeneration system

#339
20110192777
2011-08-11

Cleaning and material separating device for wastewater, particularly from livestock husbandry

#340
20110192428
2011-08-11

WASTEWATER TANK STORAGE TREATMENT

#341
20110189049
2011-08-04

METHOD FOR TREATING ODORS

#342
20110180473
2011-07-28

Integrated biological wastewater treatment and clarification

#343
20110168616
2011-07-14

System and process for removing nitrogen compounds and odors from wastewater and wastewater treatment system

#344
20110168609
2011-07-14

DOSING CONTROL SYSTEM AND METHOD

#345
20110163036
2011-07-07

Method and apparatus for generating fresh water

#346
20110155567
2011-06-30

DEODORIZATION MODULE AND FOOD WASTE TREATMENT APPARATUS HAVING THE SAME

#347
20110147310
2011-06-23

Method and apparatus for generating fresh water

#348
20110139716
2011-06-16

Method and apparatus for desalinating sea water

#349
20110139712
2011-06-16

Method and apparatus for desalinating sea water

#350
20110113840
2011-05-19

Method for treating and/or pretreating liquid manure or biogas plant reject for the elimination of harmful substances, particularly nitrogen, phosphorus, and odor molecules

#351
20110068060
2011-03-24

Waste water treatment systems and methods

#352
20110044927
2011-02-24

ODOR ABATEMENT OF ORGANIC WASTE

#353
20110042306
2011-02-24

Method for desalinating sea water

#354
20110028925
2011-02-03

Method of reducing urine odor and article functioning to reduce urine odor

#355
20110024362
2011-02-03

Method and apparatus for control of a gas or chemical

#356
20100327095
2010-12-30

Water treatment systems and methods

#357
20100326821
2010-12-30

Electrolysis apparatus and device comprising the same

#358
20100320145
2010-12-23

Method for treating waste water

#359
20100307973
2010-12-09

MOBILE UNIT FOR THE TREATMENT OF RAW WATER

#360
20100239555
2010-09-23

Enzymatically active compositions for suppressing sulfide generation and methods of use thereof

#361
20100230363
2010-09-16

Groundwater recharging wastewater disposal method

#362
20100213122
2010-08-26

Waste water treatment

#363
20100206791
2010-08-19

Apartment-shaped anaerobic digester for producing biogas

#364
20100200476
2010-08-12

WASTEWATER TREATMENT APPARATUS

#365
20100155341
2010-06-24

Method of treating water and aqueous systems in pipes with chlorine dioxide

#366
20100147777
2010-06-17

Ozone Oxidation Accelerator, Ozone Oxidation Accelerator Composition, and Ozone Treatment Method

#367
20100136674
2010-06-03

Plant for producing an oxygen-containing additive as an ecologically beneficial component for liquid motor fuels

#368
20100133157
2010-06-03

Water treatment apparatus adaptible to natural water environment

#369
20100112676
2010-05-06

ODOR CONTROL METHODS AND COMPOSITIONS

#370
20100101985
2010-04-29

Apparatus for removing dissolved hydrogen sulfide in anaerobic treatment

#371
20100096324
2010-04-22

System and method for reducing pollution in a body of water

#372
20100064425
2010-03-18

Urinal

#373
20100044304
2010-02-25

Method of treating wastewater containing organic compound

#374
20100041761
2010-02-18

Halo active aromatic sulfonamide organic compounds and odor control uses therefor

#375
20100032312
2010-02-11

Electrochemical apparatus having a forced flow arrangement

#376
20100025329
2010-02-04

METHOD FOR TREATMENT WITH REVERSE OSMOSIS MEMBRANE

#377
20100012221
2010-01-21

Water refilling assembly for hydro pack

#378
20090289010
2009-11-26

Device for capturing odor and/or taste-generating substances present in water flowing in a network

#379
20090277830
2009-11-12

Septage treatment system and method of treating septage

#380
20090277775
2009-11-12

Reactor for removing chemical and biological contaminants from a contaminated fluid

#381
20090250389
2009-10-08

Composition for odor control

#382
20090242468
2009-10-01

System for Controlling the Concentration of a Detrimental Substance in a Sewer Network

#383
20090230041
2009-09-17

Integrated water treatment apparatus and methods for natural water improvement

#384
20090223892
2009-09-10

USE OF NITRATE SALTS FOR SUPPRESSING DISTURBING ODOURS

#385
20090223266
2009-09-10

Method and Deodorizing and Decontaminating Biologically Contaminated Sludge

#386
20090220767
2009-09-03

Nanocarbon-activated carbon composite

#387
20090208470
2009-08-20

microorganisms having odor control activity and uses thereof

#388
20090202396
2009-08-13

Environmental sanitizer and odor remover for purification of foods, surfaces, air and water with disposable ozone generation electrode, pressure/flow adaptable venturi injector and aqueous phase filter device

#389
20090188850
2009-07-30

System for treating residual water

#390
20090188847
2009-07-30

Ventilation system of sludge receiving facility

#391
20090188846
2009-07-30

MAGNETIC WATER GENERATOR WITH VARIED POLARIZATION RATIOS

#392
20090175758
2009-07-09

WASTEWATER TANK STORAGE TREATMENT

#393
20090145849
2009-06-11

SOLUTION AND METHOD FOR SCAVENGING SULPHUR COMPOUNDS

#394
20090111694
2009-04-30

Methods and compositions for treating pollution

#395
20090068059
2009-03-12

METHOD OF PREVENTING HYDROGEN SULFIDE ODOR GENERATION IN AN AQUEOUS MEDIUM

#396
20090065445
2009-03-12

Aromatic imine compounds for use as sulfide scavengers

#397
20090054375
2009-02-26

Compositions, systems, and/or methods involving chlorine dioxide

#398
20090053326
2009-02-26

Compositions, systems, and/or methods involving chlorine dioxide (“ClO2”)

#399
20090045120
2009-02-19

Wastewater chemical/biological treatment method and apparatus

#400
20090028810
2009-01-29

STABILIZATION OF BIOSOLIDS USING IRON NANOPARTICLES

#401
20090000752
2009-01-01

Use of cyclodextrins for odor control in papermaking sludges, and deodorized sludge and products

#402
20080314842
2008-12-25

Method of treating raw sewage slurry

#403
20080314827
2008-12-25

Hybrid chemical/mechanical dewatering method for inactivating and removing pharmaceuticals and other contaminants from wastewater

#404
20080292495
2008-11-27

Method and device for the continuous reduction of the odor contamination caused by the waste water in sewers and method and device for determining the pollution of a water sample with odorous substances

#405
20080290024
2008-11-27

Methods for reducing biosolids odors

#406
20080268009
2008-10-30

Scented, fragrant water treatment capsules with biomedicides

#407
20080251450
2008-10-16

Waste water treatment

#408
20080245729
2008-10-09

Process for aerobic-thermophilic stabilization and disinfection of sludge

#409
20080210627
2008-09-04

Process for the aerobic-thermophilic stabilization and disinfection of sludge

#410
20080209968
2008-09-04

Processes for Treatment of Wastewater, Separation, Deodorisation and Re-Use of Biosolids

#411
20080197085
2008-08-21

Reduction of hydrogen sulfide in water treatment systems or other systems that collect and transmit bi-phasic fluids

#412
20080185320
2008-08-07

System for deodorizing and neutralizing waste-water

#413
20080156742
2008-07-03

Sludge Reduction System for Wastewater Treatment

#414
20080145270
2008-06-19

ADDITIVE TO MITIGATE HYDROGEN SULFIDE AND METHOD OF USING THE SAME

#415
20080135493
2008-06-12

Method and apparatus for control of a gas or chemical

#416
20080093295
2008-04-24

Apparatus and method for remediation of a drain system

#417
20080075791
2008-03-27

ENVIRONMENTAL CONTROL OF CONFINED ANIMAL REARING FACILITIES WITH LIQUID IRON COMPOUNDS

#418
20080073270
2008-03-27

Method and apparatus for treatment of wastewater

#419
20080073269
2008-03-27

Method and apparatus for treatment of wastewater

#420
20080041785
2008-02-21

Systems and methods for wastewater odor control

#421
20080038554
2008-02-14

Media

#422
20080023412
2008-01-31

Portable tank wastewater treatment system and method

#423
20080023406
2008-01-31

Water filtration systems and methods

#424
20070241062
2007-10-18

Synergistic composition and method for odor control

#425
20070237296
2007-10-11

Decontamination using planar X-ray sources

#426
20070199902
2007-08-30

Methods of hydrogen sulfide treatment

#427
20070199872
2007-08-30

Hydrogen sulfide treatment system

#428
20070196319
2007-08-23

Methods of producing, marketing and using odor control compositions

#429
20070187338
2007-08-16

Mobile or stationary modular self-contained dehydration toilet, dehydration engine, and gray water recovery system

#430
20070181495
2007-08-09

Method of operating a sewage system and such a sewage system

#431
20070138091
2007-06-21

Wastewater treatment apparatus

#432
20070128712
2007-06-07

Treatment of putrescrible cakes

#433
20070119759
2007-05-31

Water treatment system

#434
20070084772
2007-04-19

CONTROLLED DOSING OF CHLORINE DIOXIDE OR OTHER SANITIZING AGENTS INTO PRESSURIZED WATER SYSTEMS

#435
20070074758
2007-04-05

Dosing control system and method

#436
20070062883
2007-03-22

Deodorization of livestock waste using ozone

#437
20070062882
2007-03-22

Method to control odors from dewatered biosolids cake

#438
20070059815
2007-03-15

Odor control methods and compositions

#439
20070032397
2007-02-08

Fragrant monopersulfate compositions for water treatment and articles containing them

#440
20070029243
2007-02-08

Methods and apparatus for treating animal manure

#441
20060289349
2006-12-28

Composite materials for fluid treatment

#442
20060273044
2006-12-07

Chemical treatment for control of sulfide odors in waste materials

#443
20060269455
2006-11-30

Apparatus for large-scale dispersion of essential oils

#444
20060231500
2006-10-19

Method and apparatus for control of a gas or chemical

#445
20060206996
2006-09-21

Dehydration toilet having an infusion odor capturing steam and water recovery system

#446
20060134770
2006-06-22

Microorganisms for assimilating oils or fats, etc. and methods for treating waste liquids and deodorizing by using the same

#447
20060124540
2006-06-15

Integrated hydroponic and wetland wastewater treatment systems and associated methods

#448
20060096904
2006-05-11

Residential in-well internal water aerator

#449
20060091083
2006-05-04

Mobile or stationary modular self-contained dehydration toilet, dehydration engine, and gray water recovery system

#450
20060086651
2006-04-27

Internal recycle process for HOG waste

#451
20060073112
2006-04-06

Method of preventing hydrogen sulfide odor generation in an aqueous medium

#452
20060049119
2006-03-09

Method for removal of biofilm

#453
20060043025
2006-03-02

Hybrid chemical/mechanical dewatering method for sewage treatment plants

#454
20060037869
2006-02-23

Scented electrolysis product

#455
20060006121
2006-01-12

Synergistic composition and method for odor control

#456
20060006120
2006-01-12

Method of preventing hydrogen sulfide odor generation in an aqueous medium

#457
20050287109
2005-12-29

Halo active aromatic sulfonamide organic compounds and odor control uses therefor

#458
20050224409
2005-10-13

System for controlling sulfide generation

#459
20050211642
2005-09-29

Filtering medium and use of the said filtering medium for pollution removal from lagoons

#460
20050189275
2005-09-01

Liquid level sensor with odor reduction for waste holding tanks

#461
20050184011
2005-08-25

Car wash water reclamation system

#462
20050167349
2005-08-04

Controlled dosing of chlorine dioxide of other sanitizing agents into pressurized water systems

#463
20050147546
2005-07-07

Environmental sanitizer and odor remover for purification of foods, surfaces, air and water with disposable ozone generation electrode, pressure/flow adaptable venturi injector and aqueous phase filter device

#464
20050145574
2005-07-07

Method of treating mine drainage

#465
20050145566
2005-07-07

Processes of aqueous solids treatment

#466
20050115895
2005-06-02

Removing odoriferous sulfides from wastewater

#467
20050089990
2005-04-28

Method of deodorant for kitchen disposal and toilet pipeline

#468
20050077251
2005-04-14

Method for control of wastewater treatment plant odors

#469
20050035328
2005-02-17

Modified amine for boiler water treatment

#470
20050031684
2005-02-10

Compression molded product of effervescent chlorinated isocyanuric acid

#471
20050019315
2005-01-27

Odor control compositions and methods

#472
20050000906
2005-01-06

Methods and apparatus for treating animal manure

#473
18760262
2024-12-24

Deodorizing air using aqueous ozone as a catalyst

#474
18487134
2024-03-12

Biological desulfurizer for removing organic sulfur in fracturing flowback fluid and application thereof

#475
18100908
2025-06-17

Compositions and methods for reduction of free chlorine and related odor

#476
17561426
2025-10-28

Shelf-stable dechlorinating solutions for water and related methods for use and making thereof

#477
17238745
2024-01-02

Method of preparing potable water

#478
16899227
2023-02-07

Compositions and methods for reduction of free chlorine and related odor

#479
16722106
2020-10-06

Electron generation apparatus capable of multi-stage boosting for variable capacity

#480
15381606
2018-01-30

Method and composition for the remediation of contaminants

#481
15280523
2019-10-22

Aeration system for water well

#482
15256704
2016-11-22

Adjustable water softener with closed-pressure aeration

#483
14756620
2016-10-04

Method of neutralizing bacteria in sulphur-containing hard water in a water heater

#484
14734597
2017-02-07

Method for the in situ remediation of contaminants

#485
14026025
2017-12-19

Compositions and methods for treating wastewater