Sand or gravel filters

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CPC
B01D23/16

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Parent Industries

BPERFORMING OPERATIONS TRANSPORTING B01Physical, chemical processing B01DSEPARATION B01D23/00Gravity filters

Current Industry

B01D23/16Sand or gravel filters

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Systems and methods for stormwater management
- Patent number 11,691,894
- Issue date Jul 4, 2023
- Advanced Drainage Systems, Inc.
- Daniel J. Figola
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Systems and methods for stormwater management
- Patent number 11,365,131
- Issue date Jun 21, 2022
- Advanced Drainage Systems, Inc.
- Daniel J. Figola
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Apparatus for filtering liquids
- Patent number 11,260,324
- Issue date Mar 1, 2022
- Filippo Bussinelli
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Systems and methods for stormwater management
- Patent number 10,882,759
- Issue date Jan 5, 2021
- Advanced Drainage Systems, Inc.
- Daniel J. Figola
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Clearing device
- Patent number 10,737,199
- Issue date Aug 11, 2020
- Doppstadt Familienholding GmbH
- Ferdinand Doppstadt
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Apparatus for removing impurities from water or wastewater
- Patent number 10,376,817
- Issue date Aug 13, 2019
- Roberts Marketing DE, Inc.
- R. Lee Roberts
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
River course ecological treatment system
- Patent number 10,246,867
- Issue date Apr 2, 2019
- Thomas Wang
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Apparatus for removing impurities from water or wastewater and a me...
- Patent number 9,731,228
- Issue date Aug 15, 2017
- Roberts Marketing DE, Inc.
- R. Lee Roberts
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Method for washing a filter for filtering water or wastewater
- Patent number 9,468,869
- Issue date Oct 18, 2016
- Roberts Marketing DE, Inc.
- R. Lee Roberts
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Method for washing a filter having at least two layers of filtering...
- Patent number 9,295,929
- Issue date Mar 29, 2016
- Degremont
- Gerard Flores
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Filtration apparatus having a plurality of filtration beds
- Patent number 4,752,392
- Issue date Jun 21, 1988
- Bectra S.A.
- Philippe Dacquet
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Filter for intra-channel clarification
- Patent number 4,634,528
- Issue date Jan 6, 1987
- Harold J. Beard
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Filtering apparatus
- Patent number 4,624,782
- Issue date Nov 25, 1986
- National Research Development Corporation
- Michael H. Gould
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Filtration device and method
- Patent number 4,582,609
- Issue date Apr 15, 1986
- Minnesota Mining and Manufacturing Company
- John S. Hunter
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Open gravity backwash filter and method
- Patent number 4,537,687
- Issue date Aug 27, 1985
- Infilco Degremont Inc.
- Louis H. Piper
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Cistern for natural purification and plankton cultivation
- Patent number 4,473,468
- Issue date Sep 25, 1984
- Shizenkai Co., Ltd.
- Takashi Mae
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Underdrain unit with air/water backwash for granular filtration system
- Patent number 4,331,542
- Issue date May 25, 1982
- Enviroquip, Inc.
- Robert E. Emrie
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Water collecting and distributing apparatus disposed in a lower por...
- Patent number 4,214,992
- Issue date Jul 29, 1980
- Mitsui Engineering & Shipbuilding Co., Ltd.
- Kenji Sasano
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Upflow filter construction
- Patent number 4,211,655
- Issue date Jul 8, 1980
- Jet Aeration Company (Jet Inc.)
- Edward J. Jordan
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Liquid treating system
- Patent number 4,211,656
- Issue date Jul 8, 1980
- John J. Cochrane
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Pleated filter underdrain, method and apparatus
- Patent number 4,196,079
- Issue date Apr 1, 1980
- Harsco Corporation
- Thomas D. Ward
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Process and apparatus for dewatering granulated material, especiall...
- Patent number 4,196,078
- Issue date Apr 1, 1980
- Erich Muller-Spath
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Filtering apparatus for liquids
- Patent number 4,118,322
- Issue date Oct 3, 1978
- Hydrotechnic Corporation
- Guillermo A. San Roman
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Treatment of effluent
- Patent number 4,075,095
- Issue date Feb 21, 1978
- Derek Parnaby
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Filtering process using inorganic synthetically prepared filter sand
- Patent number 4,073,729
- Issue date Feb 14, 1978
- Wasag Chemie AG
- Stefan Kraemer
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Fluid distributor
- Patent number 4,065,391
- Issue date Dec 27, 1977
- Sybron Corporation
- Patrick Farabaugh
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Removal of grease and oil from particulate bed granules by backwash...
- Patent number 4,032,443
- Issue date Jun 28, 1977
- Sterling Drug Inc.
- David S. Ross
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Underdrain for water filtration system
- Patent number 3,956,134
- Issue date May 11, 1976
- Hi-Ran, Ltd.
- James Raymond Sturgill
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
3886071
- Patent number 3,886,071
- Issue date May 27, 1975
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
3854291
- Patent number 3,854,291
- Issue date Dec 17, 1974
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING

Patents Applicationslast 30 patents

Information Patent Application
SYSTEMS AND METHODS FOR STORMWATER MANAGEMENT
- Publication number 20230286828
- Publication date Sep 14, 2023
- ADVANCED DRAINAGE SYSTEMS, INC.
- Daniel J. FIGOLA
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
SYSTEMS AND METHODS FOR STORMWATER MANAGEMENT
- Publication number 20230264977
- Publication date Aug 24, 2023
- ADVANCED DRAINAGE SYSTEMS, INC.
- Daniel J. FIGOLA
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
SYSTEMS AND METHODS FOR STORMWATER MANAGEMENT
- Publication number 20220281756
- Publication date Sep 8, 2022
- ADVANCED DRAINAGE SYSTEMS, INC.
- Daniel J. FIGOLA
- E03 - WATER SUPPLY SEWERAGE
Information Patent Application
SYSTEMS AND METHODS FOR STORMWATER MANAGEMENT
- Publication number 20210147254
- Publication date May 20, 2021
- ADVANCED DRAINAGE SYSTEMS, INC.
- Daniel J. FIGOLA
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
APPARATUS FOR FILTERING LIQUIDS
- Publication number 20200206654
- Publication date Jul 2, 2020
- FILIPPO BUSSINELLI
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
APPARATUS FOR REMOVING IMPURITIES FROM WATER OR WASTEWATER AND A ME...
- Publication number 20200016517
- Publication date Jan 16, 2020
- ROBERTS MARKETING DE, INC.
- R. Lee Roberts
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
CLEARING DEVICE
- Publication number 20190291026
- Publication date Sep 26, 2019
- Doppstadt Familienholding GmbH
- Ferdinand DOPPSTADT
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
RIVER COURSE ECOLOGICAL TREATMENT SYSTEM
- Publication number 20180320356
- Publication date Nov 8, 2018
- Thomas WANG
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Application
APPARATUS FOR REMOVING IMPURITIES FROM WATER OR WASTEWATER AND A ME...
- Publication number 20170304748
- Publication date Oct 26, 2017
- Roberts Marketing De, Inc.
- R. Lee Roberts
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Apparatus for removing impurities from water or wastewater and a me...
- Publication number 20120111777
- Publication date May 10, 2012
- R. Lee Roberts
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Sand or gravel filters

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Systems and methods for stormwater management

Systems and methods for stormwater management

Apparatus for filtering liquids

Systems and methods for stormwater management

Clearing device

Apparatus for removing impurities from water or wastewater

River course ecological treatment system

Apparatus for removing impurities from water or wastewater and a me...

Method for washing a filter for filtering water or wastewater

Method for washing a filter having at least two layers of filtering...

Filtration apparatus having a plurality of filtration beds

Filter for intra-channel clarification

Filtering apparatus

Filtration device and method

Open gravity backwash filter and method

Cistern for natural purification and plankton cultivation

Underdrain unit with air/water backwash for granular filtration system

Water collecting and distributing apparatus disposed in a lower por...

Upflow filter construction

Liquid treating system

Pleated filter underdrain, method and apparatus

Process and apparatus for dewatering granulated material, especiall...

Filtering apparatus for liquids

Treatment of effluent

Filtering process using inorganic synthetically prepared filter sand

Fluid distributor

Removal of grease and oil from particulate bed granules by backwash...

Underdrain for water filtration system

3886071

3854291

Patents Applicationslast 30 patents

SYSTEMS AND METHODS FOR STORMWATER MANAGEMENT

SYSTEMS AND METHODS FOR STORMWATER MANAGEMENT

SYSTEMS AND METHODS FOR STORMWATER MANAGEMENT

SYSTEMS AND METHODS FOR STORMWATER MANAGEMENT

APPARATUS FOR FILTERING LIQUIDS

APPARATUS FOR REMOVING IMPURITIES FROM WATER OR WASTEWATER AND A ME...

CLEARING DEVICE

RIVER COURSE ECOLOGICAL TREATMENT SYSTEM

APPARATUS FOR REMOVING IMPURITIES FROM WATER OR WASTEWATER AND A ME...

Apparatus for removing impurities from water or wastewater and a me...