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James H. Lenhart
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Aloha, OR, US
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Patents Grants
last 30 patents
Information
Patent Grant
Filter cartridge with regulated surface cleaning mechanism
Patent number
6,649,048
Issue date
Nov 18, 2003
Stormwater Management
Scott A. de Ridder
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Self-cleaning siphon-actuated radial flow filter basket
Patent number
6,027,639
Issue date
Feb 22, 2000
Stormwater Treatment LLC
James H. Lenhart
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Apparatus and method for treating storm water runoff
Patent number
5,707,527
Issue date
Jan 13, 1998
Stormwater Treatment LLC
John H. Knutson
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Pelletized composition for treatment of storm water runoff
Patent number
5,624,576
Issue date
Apr 29, 1997
CSF Treatment Systems, Inc.
James H. Lenhart
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Patents Applications
last 30 patents
Information
Patent Application
STORMWATER COLLECTION SYSTEM WITH FILTRATION, RETENTION AND IRRIGAT...
Publication number
20240190740
Publication date
Jun 13, 2024
Contech Engineered Solutions LLC
Warren Jones
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
STORMWATER RUNOFF CONTROL FOR VEGETATIVE-AND NON-VEGETATIVE-BASED R...
Publication number
20140026480
Publication date
Jan 30, 2014
James H. Lenhart
A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information
Patent Application
PHOSPHOROUS MITIGATION FOR GREEN FILTER BEDS
Publication number
20130175216
Publication date
Jul 11, 2013
CONTECH STORMWATER SOLUTIONS INC.
Jia Ma
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
Stormwater Filtration Systems
Publication number
20130140229
Publication date
Jun 6, 2013
Vaikko P. Allen
E03 - WATER SUPPLY SEWERAGE
Information
Patent Application
Stormwater Filter and Mount Assembly
Publication number
20080047886
Publication date
Feb 28, 2008
Contech Stormwater Solutions, Inc.
Jordan W. Lambert
E03 - WATER SUPPLY SEWERAGE
Information
Patent Application
Filter Cartridge with Check Valve Protection
Publication number
20070187307
Publication date
Aug 16, 2007
CONTECH STORMWATER SOLUTIONS INC.
Daniel W. Aberle
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Filter cartridge with check valve protection
Publication number
20040112807
Publication date
Jun 17, 2004
Daniel W. Aberle
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Filter cartridge with regulated surface cleaning mechanism
Publication number
20030094407
Publication date
May 22, 2003
Stormwater Management, Inc.
Scott A. de Ridder
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL