ClassID:

86375

C02F3/223 - CPC Classification

Classification description:

Biological treatment of water, waste water, or sewage; Aerobic processes; Activated sludge processes using circulation pipes using "air-lift"

Recent Application in this class:
#1
20260125302
2026-05-07

TANK CONFIGURATION WITH ENHANCED DENITRIFICATION

#2
20250353765
2025-11-20

WASTE WATER TREATMENT SYSTEM USING AEROBIC GRANULAR SLUDGE GRAVITY-DRIVEN MEMBRANE SYSTEM

#3
20250135417
2025-05-01

ADJUSTABLE GAS SIPHON FOR MIXING DENSIFIED SOLIDS IN WATER SYSTEMS

#4
20250034013
2025-01-30

ORGANIC WASTEWATER TREATMENT APPARATUS AND METHOD FOR OPERATING ORGANIC WASTEWATER TREATMENT APPARATUS

#5
20240351922
2024-10-24

MEMBRANE BIOREACTOR, METHOD OF OPERATING A MEMBRANE BIOREACTOR, AND USE OF A MEMBRANE BIOREACTOR

#6
20240140841
2024-05-02

AIR FLOW CONTROL IN A MEMBRANE AERATED BIOFILM REACTOR

#7
20240018026
2024-01-18

Tank Configuration with Enhanced Denitrification

#8
20230416125
2023-12-28

HIGH-EFFICIENCY AIRLIFT PUMP

#9
20230392363
2023-12-07

Effluent elevator system and methods of using

#10
20230391637
2023-12-07

VACUUM AIR LIFT SYSTEMS INCLUDING A FLUIDIC OSCILLATOR

#11
20230331606
2023-10-19

BUBBLE GENERATOR

#12
20230121223
2023-04-20

A Novel Single Hybrid Airlift Bioreactor for Wastewater Treatment

#13
20220324736
2022-10-13

Transportable wastewater treatment systems and methods

#14
20220098070
2022-03-31

METHODS FOR TREATING WASTE ACTIVATED SLUDGE

#15
20220073389
2022-03-10

Circulation pump for vertically circulating water in bodies of water using consecutive expanding super air bubbles

#16
20220039361
2022-02-10

Industrial fish breeding complex and a method of water regeneration

#17
20220024796
2022-01-27

WASTE WATER TREATMENT SYSTEM USING AEROBIC GRANULAR SLUDGE GRAVITY-DRIVEN MEMBRANE SYSTEM

#18
20220024782
2022-01-27

Vacuum air lift systems including a fluidic oscillator

#19
20210331940
2021-10-28

System and method of solids conditioning in a filtration system

#20
20210323837
2021-10-21

System and method of solids conditioning in a filtration system

#21
20210198132
2021-07-01

METHODS AND APPARATUSES FOR WATER, WASTEWATER, AND WASTE TREATMENT

#22
20210139359
2021-05-13

Low-pressure, reversible airlift mixing system for use with a membrane aerated biofilm reactor

#23
20200339456
2020-10-29

HIGH-EFFICIENCY AIRLIFT PUMP

#24
20200339455
2020-10-29

Water treatment aerator having bubble diffuser

#25
20200223725
2020-07-16

Method of Continuous Temperature Stabilization and Effluent Cooling Using Bioremediation Elements inside Grease Interceptors, FOG's, Vaults and other Waste Collection Enclosures

#26
20200207642
2020-07-02

Vacuum air lift systems including a photobioreactor

#27
20200031701
2020-01-30

Wastewater treatment apparatus for shortcut nitrogen removal using anaerobic ammonium oxidation and partial nitritation using ammonium oxidizing bacteria granules

#28
20200031697
2020-01-30

Organic wastewater treatment method and organic wastewater treatment device

#29
20190367399
2019-12-05

NITROGEN-RICH WASTEWATER TREATMENT APPARATUS USING PARTIAL NITRITATION SEQUENCING BATCH REACTOR TANK LINKED TO AMMONIUM OXIDIZING BACTERIA GRANULE PRODUCTION TANK AND ANAEROBIC AMMONIUM OXIDATION

#30
20190359500
2019-11-28

System and method of solids conditioning in a filtration system

#31
20190315641
2019-10-17

Bubble generator

#32
20190292081
2019-09-26

Aerated reactor with internal solids separation

#33
20190077679
2019-03-14

Vacuum air lift systems including a fluidized bed reactor

#34
20180099886
2018-04-12

Method for biological wastewater purification with phosphorous removal

#35
20180029902
2018-02-01

Vacuum air lift systems and methods

#36
20180016173
2018-01-18

Chemical free and energy efficient desalination system

#37
20180009691
2018-01-11

Biological wastewater treatment system containing a salt-rejecting membrane filter and recycle conduit

#38
20170253511
2017-09-07

SYSTEM AND METHOD FOR HOUSEHOLD WASTE WATER TREATMENT

#39
20170096354
2017-04-06

BDP sewage denitrogenation treatment system and method for sewage denitrogenation treatment

#40
20160376176
2016-12-29

Aerobic Wastewater Treatment Package With Extended Aeration - Activated Sludge

#41
20160304370
2016-10-20

Methods and apparatuses for water, wastewater, and waste treatment

#42
20160215310
2016-07-28

Process for removing sulphide from an aqueous solution

#43
20150376043
2015-12-31

Method and apparatus for wastewater treatment using external selection

#44
20150344340
2015-12-03

Chemical free and energy efficient desalination system

#45
20150166381
2015-06-18

Apparatus for biological sewage treatment

#46
20150083166
2015-03-26

Accumulated residue removal from carriers used in a water treatment system

#47
20150027938
2015-01-29

Hang on glass upflow algae scrubber embodiments

#48
20140263047
2014-09-18

Wastewater treatment system

#49
20140158614
2014-06-12

Apparatus for water, wastewater, and waste treatment

#50
20140151294
2014-06-05

Method and apparatus for residential water recycling

#51
20140054207
2014-02-27

Mini metering and biological balancer control station

#52
20140042085
2014-02-13

Systems and methods for waste treatment

#53
20130313190
2013-11-28

Chemical free and energy efficient desalination system

#54
20130146548
2013-06-13

IMMERSED SCREEN AND METHOD OF OPERATION

#55
20130092626
2013-04-18

Bubble generation for aeration and other purposes

#56
20130015127
2013-01-17

Method of Wastewater Treatment and Apparatus for its Realization in Sequencing Batch Reactors

#57
20120305495
2012-12-06

SUBMERSIBLE REACTOR AND/OR CIRCULATION APPARATUS

#58
20120279920
2012-11-08

SUSPENDED MEDIA MEMBRANE BIOLOGICAL REACTOR SYSTEM AND PROCESS INCLUDING MULTIPLE BIOLOGICAL REACTOR ZONES

#59
20120097608
2012-04-26

SUSPENDED MEDIA MEMBRANE BIOLOGICAL REACTOR SYSTEM AND PROCESS INCLUDING SUSPENSION SYSTEM

#60
20110089049
2011-04-21

Method, system and device for treatment of water

#61
20110017664
2011-01-27

Suspended media membrane biological reactor system including suspension system and multiple biological reactor zones

#62
20110013987
2011-01-20

GUIDE APPARATUS FOR INDUCING DOWNWARD FLOW OF SURFACE WATER

#63
20100295192
2010-11-25

Aeration apparatus

#64
20100288696
2010-11-18

Method for treatment of sludge

#65
20100224556
2010-09-09

Jet aeration apparatus and method of using the same

#66
20100193433
2010-08-05

Vertical Land-Based Bioreactor

#67
20100006486
2010-01-14

Unit for integrated waste water biological treatment

#68
20090301963
2009-12-10

Method and system for treating water and utilizing a membrane filtering system

#69
20090272689
2009-11-05

Wastewater treatment method

#70
20090178980
2009-07-16

Water treatment

#71
20090026121
2009-01-29

Air driven particle recirculator for a septic tank outlet baffle or filter assembly

#72
20080110828
2008-05-15

Integrated multi-zone wastewater treatment system and method

#73
20080000823
2008-01-03

Fine bubble airlift device

#74
20070163954
2007-07-19

Waste water treatment plant and method

#75
20070158265
2007-07-12

Flow-through aerobic granulator

#76
20070138091
2007-06-21

Wastewater treatment apparatus

#77
20070034558
2007-02-15

Nitrification system and method

#78
20070007202
2007-01-11

Wastewater treatment system and method

#79
20070000841
2007-01-04

DIRECTING FLUID FLOW IN REMEDIATION AND OTHER APPLICATIONS

#80
20060180546
2006-08-17

WASTEWATER TREATMENT SYSTEM AND METHOD

#81
20060118484
2006-06-08

Process and device for biological treatment of a suspension in a bioreactor

#82
20060037901
2006-02-23

Aerobic digester for bodily waste material

#83
20050242450
2005-11-03

Aeration of wastewater ponds using airlift pumps

#84
20050178725
2005-08-18

Apparatus and method for controlling biomass growth in suspended carrier bioreactor

#85
20050077239
2005-04-14

Apparatus and method for controlling biomass growth in suspended carrier bioreactor

#86
20050056431
2005-03-17

Method and system for directing fluid flow

#87
20050000873
2005-01-06

Wastewater treatment bioreactor

#88
16871880
2022-01-11

Aquaponic nutrient generation module

#89
15261358
2019-02-05

Wastewater treatment