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DAVID M. HAMBLEY
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CALGARY, CA
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Patents Grants
last 30 patents
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Patent Grant
Underdrain apparatus and method of manufacturing same
Patent number
7,410,578
Issue date
Aug 12, 2008
Newtech Filter Systems, Inc.
David M. Hambley
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Filter underdrain system for backwash flow and method for measuring...
Patent number
7,326,351
Issue date
Feb 5, 2008
David Hambley
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Filter underdrain system for backwash flow and method for measuring...
Patent number
7,138,056
Issue date
Nov 21, 2006
David M. Hambley
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Underdrain apparatus
Patent number
6,797,166
Issue date
Sep 28, 2004
Newtech Filter Systems, Inc.
Philip Hambley
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Patents Applications
last 30 patents
Information
Patent Application
Underdrain apparatus and method of manufacturing same
Publication number
20050133434
Publication date
Jun 23, 2005
NEWTECH FILTER SYSTEMS, INC.
David M. Hambley
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Filter underdrain system for backwash flow and method for measuring...
Publication number
20050109706
Publication date
May 26, 2005
David Hambley
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
FILTER UNDERDRAIN SYSTEM FOR BACKWASH FLOW AND METHOD FOR MEASURING...
Publication number
20030132169
Publication date
Jul 17, 2003
DAVID M. HAMBLEY
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL