B01D24/46 - CPC Classification Index

ClassID:

28888 ⎘

B01D24/46 - CPC Classification

Classification description:

Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof Regenerating the filtering material in the filter

Sub-classes:

B01D24/4605 » {by scrapers, brushes, nozzles or the like placed on the cake-side of the stationary filtering material and only contacting the external layer } 0
B01D24/4626 » {Construction of spray heads specially adapted for regeneration of the filter material or for filtrate discharging} 14
B01D24/4631 » {Counter-current flushing, e.g. by air} 159
B01D24/4668 » {by moving the filtering element } 20
B01D24/4694 » {containing filter material retaining means (e.g. screens, balls) placed on the surface of the filter material} 4

Recent Application in this class:

20250222378

2025-07-10

FILTERING APPARATUS, FILTERING METHOD, AND WATER TREATMENT SYSTEM

20240359116

2024-10-31

APPARATUS AND METHOD FOR IMPROVING THE EFFICIENCY OF A NEW OR EXISTING FILTER FOR FILTERING WATER OR WASTEWATER

20230211259

2023-07-06

Apparatus and method for improving the efficiency of a new or existing filter for filtering water or wastewater

20210101816

2021-04-08

Pond filter and method for operating the pond filter

20210001256

2021-01-07

Method for modifying surface of activated carbon and filter for water purifier

20190330090

2019-10-31

Horizontal-flow sand filtration pool and water treatment process thereof

20190060800

2019-02-28

Cylindrical filtration filter

20180361323

2018-12-20

Processing systems for produced water and methods for recovering organic compounds from the produced water

20180327978

2018-11-15

Paving element having drainage channels and pavement system incorporating same

#10

20180251385

2018-09-06

Water treatment system

#11

20180014714

2018-01-18

Rotating filter for a dishwasher and methods of cleaning a rotating filter

#12

20170303763

2017-10-26

Rotating filter for a dishwasher and methods of cleaning a rotating filter

#13

20170188783

2017-07-06

Rotating filter for a dishwasher and methods of cleaning a rotating filter

#14

20170086643

2017-03-30

Rotating filter for a dishwasher and methods of cleaning a rotating filter

#15

20170001130

2017-01-05

Filter structure

#16

20160289086

2016-10-06

System for automatic water discharge management

#17

20140263075

2014-09-18

Compositions and methods for cleaning water filtration media

#18

20140246388

2014-09-04

Method for the treatment of water and wastewater

#19

20140109938

2014-04-24

Rotating filter for a dishwasher and methods of cleaning a rotating filter

#20

20130134100

2013-05-30

Compacted Filter Beds Comprising Non-Sintered, Buoyant Filter Media and Methods Relating Thereto

#21

20130134099

2013-05-30

STEAM PURIFICATION

#22

20120261357

2012-10-18

METHOD FOR THE TREATMENT OF WATER AND WASTEWATER

#23

20120103917

2012-05-03

Water treatment apparatus and a method for cleaning a filter layer of a water treatment apparatus

#24

20110233153

2011-09-29

Radial flow column

#25

20110147315

2011-06-23

Method of water discharge management

#26

20110147282

2011-06-23

SYSTEM FOR AUTOMATIC WATER DISCHARGE MANAGEMENT

#27

20110146822

2011-06-23

WATER DISCHARGE MANAGEMENT SYSTEM

#28

20100287967

2010-11-18

Indoor unit of air conditioner

#29

20100264087

2010-10-21

Method for reducing clogging of filters

#30

20100237025

2010-09-23

Method and system for cleaning filter media support structures

#31

20090223898

2009-09-10

Industrial Silicon Carbide Filtration Method

#32

20060091059

2006-05-04

Modular filtration system

#33

20060006123

2006-01-12

METHOD OF REGENERATING FILTER MEDIA IN A FILTER

#34

20050211628

2005-09-29

Method and apparatus for enhancing filter bed performance

#35

14197076

2017-10-31

Cleaning system for filter beds

#36

14082111

2015-04-07

Tank access hatch and cleaning method

#37

13731478

2016-12-06

Method and apparatus for uniformity of spills from fluid-entry faces of a panel bed

#38

12799856

2015-09-01

Method and apparatus for longitudinally disposed, sharp pulse of liquid