ClassID:

86360

C02F3/1294 - CPC Classification

Classification description:

Biological treatment of water, waste water, or sewage; Aerobic processes; Activated sludge processes; Provisions for mixing or aeration of the mixed liquor "Venturi" aeration means

Recent Application in this class:
#1
20260138902
2026-05-21

WASTEWATER TREATMENT SYSTEMS AND METHODS INVOLVING A BIOLOGICALLY ACTIVE CONDUIT

#2
20260008019
2026-01-08

SYSTEMS AND METHODS OF GAS INFUSION FOR WASTEWATER TREATMENT

#3
20240182334
2024-06-06

Fluid remanufacturing

#4
20230113644
2023-04-13

Fluid remanufacturing

#5
20210032123
2021-02-04

Cleaning Device for Ponds

#6
20200261865
2020-08-20

Confined tube aspiration aeration devices and systems

#7
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

#8
20200055756
2020-02-20

Eductor-based membrane bioreactor

#9
20190218489
2019-07-18

Venturi bubble lighting

#10
20190039925
2019-02-07

System and method for treating wastewater

#11
20180280916
2018-10-04

Apparatus for increasing gas components in a fluid

#12
20180280915
2018-10-04

Method for increasing gas components in a fluid

#13
20180162757
2018-06-14

VENTURI APPARATUS AND METHOD OF USE

#14
20180111843
2018-04-26

Cleaning Device for Ponds

#15
20180043316
2018-02-15

AERATION OF LIQUID SUITABLE FOR AQUEOUS WASTE TREATMENT

#16
20170327395
2017-11-16

System and method for treating wastewater

#17
20170313969
2017-11-02

Cultivation and dispensing of bacteria

#18
20170118907
2017-05-04

Automated manure agitation and transfer

#19
20170015573
2017-01-19

Removable nozzle assembly and gas transfer system

#20
20160200607
2016-07-14

Eductor-based membrane bioreactor

#21
20160145130
2016-05-26

Water treatment device

#22
20140311990
2014-10-23

Turbulence inducing device and methods of use

#23
20120021492
2012-01-26

Cultivation and dispensing of bacteria

#24
20110303594
2011-12-15

Flat plate membrane bioreactor with a liquid air separator

#25
20110248413
2011-10-13

Device for supplying gas into water

#26
20110120945
2011-05-26

Apparatus and process for wastewater treatment and biological nutrient removal in activated sludge systems

#27
20110089108
2011-04-21

Aeration and filtration system and process for treating wastewater

#28
20100264073
2010-10-21

Water-purifying device for increasing oxygen content

#29
20100089828
2010-04-15

MEMBRANE BIOREACTOR FOR PHOSPHORUS REMOVAL

#30
20090206497
2009-08-20

LIQUID WASTE AERATION SYSTEM AND METHOD

#31
20090137015
2009-05-28

METHOD AND APPARATUS FOR PREPARING MATERIAL FOR MICROBIOLOGICAL FERMENTATIONS

#32
20090078792
2009-03-26

Apparatus for aerating an aqueous solution

#33
20090065410
2009-03-12

Vacuum-actuated liquid disinfectant dispenser and system

#34
20090008311
2009-01-08

Pure Oxygen Aeration System for Wastewater Treatment

#35
20080257812
2008-10-23

Jet Loop Wastewater Treatment System

#36
20080041773
2008-02-21

Bio tank/oxygen replenishment system

#37
20070235388
2007-10-11

Biological wastewater treatment process and reactor

#38
20070221574
2007-09-27

SYSTEM, METHOD, AND APPARATUS FOR AERATION AND PROCESSING WASTE IN AEROBIC WASTEWATER MANAGEMENT

#39
20070035045
2007-02-15

Aerator and mixer

#40
20060138046
2006-06-29

Apparatus for and a method of treating organic waste

#41
20060043017
2006-03-02

System and method of treating waste water

#42
20060011540
2006-01-19

Process and apparatus for treating biosolids from wastewater treatment

#43
20050275119
2005-12-15

Oxygenating nozzle

#44
20050247639
2005-11-10

Reduction in biological oxygen demand levels in waste water effluents

#45
20050242028
2005-11-03

Process for treating a body of water

#46
20050092670
2005-05-05

Autothermal aerobic digestion system having closed defoaming system

#47
17966552
2023-11-28

Fluid remanufacturing