ClassID:

86601

C02F2209/09 - CPC Classification

Classification description:

Controlling or monitoring parameters in water treatment Viscosity

Recent Application in this class:
#1
20260091996
2026-04-02

METHOD FOR LIQUID-SOLID SEPARATION

#2
20250243100
2025-07-31

Airtight Storage Tank and Improved Method for Anaerobic Treatment of Slurry or Whey

#3
20250002374
2025-01-02

Arrangements for treating wastewater

#4
20240367999
2024-11-07

SUPERCRITICAL WATER OXIDATION FEED STREAMS AND METHODS OF PRODUCTION

#5
20230100391
2023-03-30

SYSTEM AND METHOD FOR DIFFERENTIAL ENRICHMENT OF WATER

#6
20220127171
2022-04-28

Method for synergistic degradation treatment of polysaccharide-containing polymer wastewater by controllable—OH radical

#7
20220098057
2022-03-31

Arrangement for treating wastewater

#8
20210370119
2021-12-02

Processes for remediation of a contaminated material

#9
20210308637
2021-10-07

Oilfield deep well processing and injection facility and methods

#10
20210214257
2021-07-15

Method and apparatus for pasteurization, hydrolysis and carbonization

#11
20210179469
2021-06-17

Method of treatment of partially hydrolyzed biosolids

#12
20210069646
2021-03-11

Electrodialysis device for the desalination of water for oil and gas applications

#13
20200188810
2020-06-18

Controlled fluid concentrator

#14
20190292079
2019-09-26

Method for treating production water from a method for enhanced oil and/or gas recovery

#15
20190225514
2019-07-25

Apparatus for partially desalinating produced water to form extraction fluid used for fossil fuel extraction

#16
20170044033
2017-02-16

Method and apparatus for partially desalinating produced water to form extraction fluid used for fossil fuel extraction

#17
20160289107
2016-10-06

Moving bed biofilm reactor for waste water treatment system

#18
20160214875
2016-07-28

WATER TREATMENT SYSTEM

#19
20160159664
2016-06-09

System and method for treating contaminated wastewater

#20
20160122218
2016-05-05

Process and device for treating a biomass mixed with water in order to produce drinking water, biogas and combustible solids

#21
20150352387
2015-12-10

Processes for remediation of a contaminated material

#22
20150251940
2015-09-10

Sludge dewatering system

#23
20150175440
2015-06-25

Graywater separation device

#24
20140326675
2014-11-06

Rheology modifying agents for slurries

#25
20140076810
2014-03-20

Systems and methods for use of water with switchable ionic strength

#26
20130264290
2013-10-10

Improving wastewater pumping and conveying efficiency

#27
20130165352
2013-06-27

Well treatment fluid compositions and methods of use that include a delayed release percarbonate formulation

#28
20130134043
2013-05-30

Method and device for purifying water

#29
20130043188
2013-02-21

CONTROL OF IMMERSED MEMBRANE SYSTEM CONSIDERING ENERGY COST FLUCTUATIONS

#30
20120205319
2012-08-16

Apparatus and Method for Discharge of Treated Sewage Sludge from Bins

#31
20120012188
2012-01-19

Slurry feed system and method

#32
20110278008
2011-11-17

WELL TREATMENT FLUID COMPOSITIONS AND METHODS OF USE THAT INCLUDE A DELAYED RELEASE PERCARBONATE FORMULATION

#33
20110220354
2011-09-15

Polymer gels as flow improvers in water injection systems

#34
20110136718
2011-06-09

HYBRID COPOLYMERS

#35
20110132836
2011-06-09

Systems and methods for nutrient removal in biological treatment systems

#36
20110049059
2011-03-03

Water quality control in covered reservoir

#37
20110024360
2011-02-03

COMPOSITIONS AND METHODS FOR WASTEWATER TREATMENT

#38
20100311155
2010-12-09

METHOD FOR TREATMENT OF ORGANIC MATERIAL

#39
20100248998
2010-09-30

Process for the production of a granule of a coated oxidizing compound such granule and uses of the granule

#40
20100069280
2010-03-18

Hybrid copolymers

#41
20090107920
2009-04-30

Sludge treatment system

#42
20090095472
2009-04-16

Well treatment fluid compositions and methods of use that include a delayed release percarbonate formulation

#43
20080302889
2008-12-11

Liquefying de-watered sludge preparatory to drying

#44
20070256982
2007-11-08

Compositions and methods for wastewater treatment

#45
20070187331
2007-08-16

Dewatering process

#46
20070172913
2007-07-26

Production of a fermentation product

#47
20070144964
2007-06-28

Mixed liquid separating apparatus

#48
20070108121
2007-05-17

Water treatment product, delivery method and means of packaging

#49
20070021577
2007-01-25

Hybrid copolymers

#50
20060016761
2006-01-26

Dewatering of suspensions

#51
20050127008
2005-06-16

Methods for water and wastewater sludge treatment using floc or network strength

#52
20050014893
2005-01-20

Tris(hydroxymethyl) acrylamidomethane polymer, inverse latex and microlatex containing same, use of said polymer, inverse latex and microlatex

#53
20050014887
2005-01-20

Aqueous dispersions of water-soluble polymers of N-vinyl carboxylic acid amides, method for the production thereof and their use