ClassID:

86619

C02F2209/26 - CPC Classification

Classification description:

Controlling or monitoring parameters in water treatment HS

Sub-classes:
Recent Application in this class:
#1
20260116784
2026-04-30

COMPOSITIONS AND METHOD FOR WASTEWATER TREATMENT

#2
20260103401
2026-04-16

AUTONOMOUS CHEMICAL DOSING SYSTEM AND METHODS OF USE THEREOF

#3
20260049018
2026-02-19

METHOD FOR WASTEWATER TREATMENT

#4
20250340465
2025-11-06

PREVENTION OF SILICA FOULING IN GEOTHERMAL BRINE

#5
20250263616
2025-08-21

SYSTEMS AND METHODS FOR MANAGING FILTRATION MEDIA BEDS IN GAS AND LIQUID FILTRATION APPARATUS

#6
20250115493
2025-04-10

METHODS AND CONTROLLER FOR DETERMINING HYDROGEN SULFIDE TREATMENT DOSAGE

#7
20250092327
2025-03-20

Systems and methods for managing filtration media beds in gas and liquid filtration apparatus

#8
20230150836
2023-05-18

AUTONOMOUS CHEMICAL DOSING SYSTEM AND METHODS OF USE THEREOF

#9
20220281765
2022-09-08

COMPOSITIONS AND METHOD FOR WASTEWATER TREATMENT

#10
20220112111
2022-04-14

SYSTEM AND METHOD OF TREATING WASTEWATER USING A PORTABLE, NON-BIOLOGICAL, CYCLIC SEWAGE TREATMENT PLANT

#11
20220073808
2022-03-10

Multivalent iron bio-inhibitor from waste bauxite residue to control reservoir souring

#12
20210155513
2021-05-27

Method and system for abating the presence of a selected chemical substance in wastewater flowing in a wastewater channel system

#13
20210147256
2021-05-20

SELF CONTAINED, AUTOMATIC WATER QUALITY MONITORING AND TREATMENT SYSTEM

#14
20210032146
2021-02-04

Method for wastewater treatment

#15
20200399141
2020-12-24

Blend for odor control

#16
20200048118
2020-02-13

Method for treating wastewater and wastewater sludge using a percarboxylic acid

#17
20190226473
2019-07-25

Pump station arrangement and method for removing harmful fluids from wastewater

#18
20190185359
2019-06-20

Method for treating wastewater using a portable, non-biological, cyclic sewage treatment plant

#19
20170158526
2017-06-08

Process for decontamination of hazardous sulfur compounds in oilfield produced waters

#20
20170073259
2017-03-16

Reduction of the amount of sulphur compounds in a sulphur compounds contaminated wastewater stream using a granular sludge treatment system

#21
20160023934
2016-01-28

Portable, non-biological, cyclic sewage treatment plant

#22
20150315485
2015-11-05

Method and system for removing hydrogen sulfide from sour oil and sour water

#23
20140238902
2014-08-28

Method and system for removing hydrogen sulfide from sour oil and sour water

#24
20130341269
2013-12-26

Method for desulphuration of the digestate and the biogas of a digester, and biogas production facility implementing said method

#25
20130043164
2013-02-21

COAL SEAM GAS FRACKING SYSTEMS AND METHODS

#26
20120267318
2012-10-25

WATER TREATMENT SYSTEMS AND METHODS

#27
20120118804
2012-05-17

Process for decontamination of hazardous sulfur compounds in oilfield produced waters

#28
20120085236
2012-04-12

Treatment of water for use in hydraulic fracture stimulation

#29
20120051964
2012-03-01

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

#30
20110233146
2011-09-29

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

#31
20110132837
2011-06-09

Method and system for treating wastewater

#32
20110068060
2011-03-24

Waste water treatment systems and methods

#33
20100012558
2010-01-21

Wastewater treatment systems

#34
20090188859
2009-07-30

Wastewater treatment methods

#35
20070163952
2007-07-19

Dissimilatory sulfate reduction as a process to promote denitrification in marine recirculating aquaculture systems

#36
20060186040
2006-08-24

Methods and apparatus for reducing nitrate demands in the reduction of dissolved and/or atmospheric sulfides in wastewater

#37
20050242011
2005-11-03

Apparatus for reducing nitrate demands in the reduction of dissolved and/or atmospheric sulfides in wastewater

#38
20050242010
2005-11-03

Methods and apparatus for reducing nitrate demands in the reduction of dissolved and/or atmospheric sulfides in wastewater

#39
20050224409
2005-10-13

System for controlling sulfide generation

#40
15196173
2017-02-28

Methods for managing sulfide in wastewater systems