ClassID:

86300

C02F1/683 - page 2 - CPC Classification

Classification description:

Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water by addition of complex-forming compounds

Recent Application in this class:
#301
20110268637
2011-11-03

Air pollution control system and air pollution control method

#302
20110260098
2011-10-27

Water treatment agent for removing pollutant by reinforcing potassium permanganate with intermediate manganes

#303
20110243819
2011-10-06

Metal scavenging polymers and uses thereof

#304
20110233145
2011-09-29

Calcium hypochlorite compositions comprising zinc salts and lime

#305
20110226706
2011-09-22

Filter comprising a halogen release system and chitosan

#306
20110210071
2011-09-01

Remediation system for transition metal ions and method for same

#307
20110189049
2011-08-04

METHOD FOR TREATING ODORS

#308
20110171322
2011-07-14

FLOCCULATING ALGICIDE COMPOSITION

#309
20110147314
2011-06-23

Water desalination apparatus

#310
20110147313
2011-06-23

Process for the treatment of the aqueous stream coming from the fischer-tropsch reaction by means of ion exchange resins

#311
20110132845
2011-06-09

Method for extracting a metal particulate from an aqueous solution using a sol-gel derived sorbent

#312
20110131873
2011-06-09

Systems and methods for removing finely dispersed particulate matter from a fluid stream

#313
20110124898
2011-05-26

Chemical and method for chelating metal ions included in water and separating/recovering of formed chelate

#314
20110120936
2011-05-26

Anti-Biofouling Materials and Methods of Making Same

#315
20110089119
2011-04-21

TREATMENT ADDITIVES AND METHODS FOR TREATING AN AQUEOUS MEDIUM

#316
20110079243
2011-04-07

SCALE CONDITIONING AGENTS AND TREATMENT METHOD

#317
20110059000
2011-03-10

Methods of sequestering CO2

#318
20110044872
2011-02-24

Flue gas control system of coal combustion boiler and operating method thereof

#319
20110031185
2011-02-10

Combined chemical oxidation/assisted bioremediation of contaminants

#320
20110028360
2011-02-03

ORGANIC CORROSION INHIBITOR PACKAGE FOR ORGANIC ACIDS

#321
20110001083
2011-01-06

ENVIRONMENTALLY BENIGN WATER SCALE INHIBITOR COMPOSITIONS AND METHOD FOR MAKING AND USING SAME

#322
20100311938
2010-12-09

Polycarbonate resin, poly (2-octadecyl-butanedioic acid) and the salts and esters thereof

#323
20100307979
2010-12-09

CHELATE RESIN

#324
20100307976
2010-12-09

Drinking water purification device

#325
20100294725
2010-11-25

Azetidinium-functional polysaccharides and uses thereof

#326
20100252506
2010-10-07

Method for producing chelate resins

#327
20100247410
2010-09-30

Rocks and aggregate, and methods of making and using the same

#328
20100237010
2010-09-23

Use of PVPP to remove contaminants from produced water of an oil or gas well

#329
20100230365
2010-09-16

Water treatment

#330
20100222542
2010-09-02

Polycarbonate resin, and method of use of, poly (2-octadecyl-butanedioic acid) and the salts and esters thereof

#331
20100213135
2010-08-26

Method and system for removal of inorganic anionic pollutants from contaminated water

#332
20100200499
2010-08-12

Method for treatment of sludge in water purification

#333
20100193729
2010-08-05

FORMULATION AND METHOD FOR PROVIDING SAFE, CLEAN CHLORINATED RECREATIONAL WATER

#334
20100176065
2010-07-15

Process for treating waste water having low concentrations of metallic contaminants

#335
20100155330
2010-06-24

TARGET MATERIAL REMOVAL USING RARE EARTH METALS

#336
20100135882
2010-06-03

METHODS OF SEQUESTERING CO2

#337
20100135865
2010-06-03

ELECTROCHEMICAL METHODS OF SEQUESTERING CO2

#338
20100132556
2010-06-03

METHODS OF SEQUESTERING CO2

#339
20100096270
2010-04-22

Equipment for the production of reduced water

#340
20100068113
2010-03-18

Phosphorus recovery

#341
20100051553
2010-03-04

METHOD FOR REMOVING MERCURY FROM WASTEWATER AND OTHER LIQUID STREAMS

#342
20100038326
2010-02-18

FILTERING MEDIUM COMPRISING GRAFTED LEWIS BASE MOLECULES

#343
20100025333
2010-02-04

APPARATUS AND PROCESS FOR WATER CONDITIONING

#344
20100024686
2010-02-04

Rocks and aggregate, and methods of making and using the same

#345
20100006511
2010-01-14

TREATMENT ADDITIVES AND METHODS FOR TREATING AN AQUEOUS MEDIUM

#346
20100000444
2010-01-07

Methods and systems for utilizing waste sources of metal oxides

#347
20090304563
2009-12-10

Mercury removal system and method

#348
20090277840
2009-11-12

Process for treating animal husbandry effluent slurry by pre-treatment and electroflotation

#349
20090246108
2009-10-01

Method For Removing Ammonia From Fluid Streams

#350
20090227462
2009-09-10

Decreasing or preventing sub-surface geological matter contamination by agrochemicals

#351
20090223896
2009-09-10

Water treatment by dendrimer-enhanced filtration

#352
20090213687
2009-08-27

Multi fluid injection mixer

#353
20090206028
2009-08-20

Combined nutrient recovery and biogas scrubbing system integrated in series with animal manure anaerobic digester

#354
20090169452
2009-07-02

Methods of sequestering CO

#355
20090159539
2009-06-25

Catalytically Treating Water Contaminated With Halogenated Organic Compounds

#356
20090139929
2009-06-04

Chelating compound, and method of use of, poly(1-octadecyl-butanedioate) and the corresponding acid, poly(1-octadecyl-butanedioic acid)

#357
20090127208
2009-05-21

Zero valent metal composite, manufacturing, system and method using thereof, for catalytically treating contaminated water

#358
20090120881
2009-05-14

TREATMENT BLENDS FOR REMOVING METALS FROM WASTEWATER, METHODS OF PRODUCING AND PROCESS OF USING THE SAME

#359
20090099058
2009-04-16

Formulations with unexpected cleaning performance incorporating a biodegradable chelant

#360
20090092673
2009-04-09

Biocide

#361
20090078655
2009-03-26

Formulation And Method For Providing Safe, Clean Chlorinated Recreational Water

#362
20090069202
2009-03-12

Corrosion inhibition compositions and methods for using the same

#363
20090069176
2009-03-12

Removing metals from solution using metal binding compounds and sorbents therefor

#364
20090065445
2009-03-12

Aromatic imine compounds for use as sulfide scavengers

#365
20090057232
2009-03-05

Method for removing metal contaminants from a metal containing solution

#366
20090045137
2009-02-19

Method of producing monodisperse chelate resins

#367
20090044345
2009-02-19

Use of Metal Complex Compounds as Oxidation Catalysts

#368
20090013742
2009-01-15

Compositions and methods for wastewater treatment

#369
20080290019
2008-11-27

Scavenging filter

#370
20080283470
2008-11-20

Wastewater mercury removal process

#371
20080272063
2008-11-06

Ex Situ and in Situ Remediation with Activated Persulfate

#372
20080264857
2008-10-30

Mine influenced water remediation using bioremediation substrate

#373
20080258104
2008-10-23

Calcium hypochlorite compositions comprising zinc salts and lime

#374
20080245744
2008-10-09

In-line waste disinfection method

#375
20080237135
2008-10-02

Pb-ion binding by polyacid-based nanoparticles

#376
20080223791
2008-09-18

Method for treating feedwater

#377
20080221218
2008-09-11

Receptor

#378
20080197075
2008-08-21

REMOVING MERCURY AND OTHER HEAVY METALS FROM INDUSTRIAL WASTEWATER

#379
20080185341
2008-08-07

Water treatment by dendrimer-enhanced filtration

#380
20080169240
2008-07-17

Arsenic Removal

#381
20080121583
2008-05-29

Portable Universal Flow Filter

#382
20080095862
2008-04-24

Biocide

#383
20080093305
2008-04-24

Formulation and method for chlorinating recreational water

#384
20080087611
2008-04-17

Chemical Metering System

#385
20080060999
2008-03-13

Method of heavy metal removal from industrial wastewater using submerged ultrafiltration or microfiltration membranes

#386
20080056974
2008-03-06

Fast, high capacity hydrogen sulfide scavengers

#387
20080047901
2008-02-28

Apparatus for treatment of chemical mechanical polishing fluid

#388
20080023409
2008-01-31

Apparatus and process for water conditioning

#389
20080011690
2008-01-17

Treatment composition for recreational water

#390
20070280785
2007-12-06

Oxidation of organic compounds at high pH

#391
20070267343
2007-11-22

Heavy metal particulate emission speciation modification wet process

#392
20070267046
2007-11-22

Cleaning Process For Removing Magnetite-Containing Deposits From A Pressure Vessel Of A Power Station

#393
20070254378
2007-11-01

CHELATING MONOMERS AND POLYMERS

#394
20070248512
2007-10-25

Polymeric chelant and coagulant to treat metal-containing wastewater

#395
20070227982
2007-10-04

Formulation for providing safe, clean chlorinated recreational water

#396
20070227978
2007-10-04

Method of supply amount management of water treating agent

#397
20070225192
2007-09-27

Combined Chemical Oxidation/Assisted Bioremediation of Contaminats

#398
20070215551
2007-09-20

Method And Device For Treatment And Loop-Processing Of Waste Waters

#399
20070199902
2007-08-30

Methods of hydrogen sulfide treatment

#400
20070199872
2007-08-30

Hydrogen sulfide treatment system

#401
20070163923
2007-07-19

Method and system for environmental reclimation and restoration

#402
20070151927
2007-07-05

Metal oxides dispersant composition

#403
20070138101
2007-06-21

Method of reclaiming brine solutions using an organic chelant

#404
20070138093
2007-06-21

Treating acidic water

#405
20070125978
2007-06-07

Method for removing heavy metals from and dissolving calcium and/or magnesium scales in water or aqueous system

#406
20070119785
2007-05-31

Metal mediated aeration for water and wastewater purification

#407
20070095759
2007-05-03

METHOD AND APPARATUS FOR TREATING WATER TO REDUCE BOILER SCALE FORMATION

#408
20070056911
2007-03-15

Selective removal of toxic compounds like arsenic from drinking water using a polymeric ligand exchanger

#409
20070021315
2007-01-25

Water precipitation softening system for detergents, bleaching agents and machine and hand dishwashing agents

#410
20070015930
2007-01-18

Aqueous solution of a sodium salt of HEDTA

#411
20060283811
2006-12-21

Method of water treatment

#412
20060276327
2006-12-07

Compositions for removing metal ions from aqueous process solutions and methods of use thereof

#413
20060225605
2006-10-12

Aqueous coating compositions and process for treating metal plated substrates

#414
20060191851
2006-08-31

Method for treating feedwater, feedwater treatment composition, and apparatus for treating feedwater

#415
20060186052
2006-08-24

Device for treating water using iron-doped ion exchangers

#416
20060186033
2006-08-24

Devices and processes for removal of impurities from a fluid recovered from a subterranean environment

#417
20060182651
2006-08-17

Method of inhibiting corrosion in hot water systems

#418
20060157416
2006-07-20

Device for treating water using iron-doped ion exchangers

#419
20060151397
2006-07-13

Amine-aldehyde resins and uses thereof in separation processes

#420
20060151396
2006-07-13

Heavy metal chelate composition containing chitosan derivatives and uses thereof

#421
20060151360
2006-07-13

Modified amine-aldehyde resins and uses thereof in separation processes

#422
20060142170
2006-06-29

Descaling and corrosion inhibiting method

#423
20060124517
2006-06-15

Compact personal water purification device

#424
20060124265
2006-06-15

High velocity, low pressure process for making silica gels and microgels

#425
20060096864
2006-05-11

Water purifying system

#426
20060081531
2006-04-20

Method for the production of a molecule vector applicable in the field of water treatment and vector thus obtained

#427
20060060538
2006-03-23

Compositions for removing metal ions from aqueous process solutions and methods of use thereof

#428
20060060258
2006-03-23

Filter assembly for inhibiting microbial growth in liquid nutrients

#429
20060054570
2006-03-16

Oxidation of organic compounds

#430
20060054569
2006-03-16

Method for providing safe, clean chlorinated recreational water

#431
20060046953
2006-03-02

Process for inhibiting scale on metal surfaces

#432
20060043011
2006-03-02

Biocide

#433
20060032824
2006-02-16

Method for suppressing growth of mycobacteria in metalworking fluids

#434
20060021938
2006-02-02

Water treatment by dendrimer enhanced filtration

#435
20060000495
2006-01-05

Novel methods and compositions for remediating submerged deposits

#436
20050258110
2005-11-24

Oxidation of organic compounds

#437
20050258107
2005-11-24

Metal ion separation from aqueous solutions using photoswitchable ionophores

#438
20050247909
2005-11-10

Process for reducing the passive layer from the surface of a metal

#439
20050247269
2005-11-10

Scale conditioning agents and treatment method

#440
20050228103
2005-10-13

Composition comprising intercalated metal-ion sequestrants

#441
20050228099
2005-10-13

Composition of matter comprising polymer and derivatized nanoparticles

#442
20050227878
2005-10-13

One-bath particle-free chemical cleaning

#443
20050227875
2005-10-13

Method of reclaiming a well completion brine solutions using an organic chelant

#444
20050227075
2005-10-13

Derivatized nanoparticle comprising metal-ion sequestrant

#445
20050227016
2005-10-13

Method for inhibiting microbial growth in liquid nutrients

#446
20050224425
2005-10-13

Container for inhibiting microbial growth in liquid nutrients

#447
20050224423
2005-10-13

Container for inhibiting microbial growth in liquid nutrients

#448
20050224419
2005-10-13

Use of derivatized nanoparticles to minimize growth of micro-organisms in hot filled drinks

#449
20050173349
2005-08-11

Metal ion extraction materials and processes using same

#450
20050156143
2005-07-21

Oxygen scavenger and the method for oxygen reduction treatment

#451
20050148712
2005-07-07

Sulfhydral containing compounds and methods of using the same

#452
20050145571
2005-07-07

Extraction and recovery of ions from a solution

#453
20050142661
2005-06-30

Determination of multi-valent metal contamination and system for removal of multi-valent metal contaminants from water

#454
20050119353
2005-06-02

Contaminant eco-remedy and use method

#455
20050098498
2005-05-12

Method for treating organic wastewater containing aminopolycarboxylic acid

#456
20050072742
2005-04-07

Photo-chemical remediation of Cu-CMP waste

#457
20050070752
2005-03-31

Method for treating cyanide waste liquid

#458
20050070677
2005-03-31

Cobalt imprinted polymer composition for selective removal of cobalt, process for preparation thereof, and process for removal of cobalt

#459
20050070676
2005-03-31

Cobalt imprinted polymer composition for selective removal of cobalt, process for preparation thereof, and process for removal of cobalt

#460
20050061748
2005-03-24

Compositions for removing metal ions from aqueous process solutions and methods of use thereof

#461
20050040363
2005-02-24

Coolant treatment formulation

#462
18242418
2024-01-09

Method of chromium (CR) removal from wastewater using copper augmented biochar

#463
18195692
2024-03-26

Method of removing pollutants from water using waste polyethylene terephthalate

#464
18119996
2024-02-06

Magnetic hydrochar synthesized from microalgal biomass

#465
17314533
2022-10-25

Crown ether functionalized substrates

#466
17083885
2023-09-26

Process for boron removal from water

#467
15444691
2018-11-20

Compositions, methods, and/or systems for managing sulfide

#468
15196173
2017-02-28

Methods for managing sulfide in wastewater systems

#469
15169379
2018-04-24

Apparatus and related methods for cleaning and using swimming pools and other water

#470
14035942
2018-04-24

Methods for treating liquid streams containing quaternary ammonium compounds

#471
14026025
2017-12-19

Compositions and methods for treating wastewater