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Frederick K. Lesan
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Encinitas, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Seal plate for membrane separation device
Patent number
9,795,925
Issue date
Oct 24, 2017
LG NANOH20, INC.
Frederick K. Lesan
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Radial split ring seal for filtration systems
Patent number
9,381,469
Issue date
Jul 5, 2016
Toray Industries, Inc.
Curtis J. Elwell
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Radial split ring seal for filtration systems
Patent number
8,758,489
Issue date
Jun 24, 2014
Toray Industries, Inc.
Curtis J. Elwell
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Radial split ring seal for filtration systems
Patent number
8,728,213
Issue date
May 20, 2014
Toray Industries, Inc.
Curtis J. Elwell
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Filtration element and method of constructing a filtration assembly
Patent number
7,387,731
Issue date
Jun 17, 2008
Koch Membrane Systems, Inc.
David M. Colby
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Filtration element and method of constructing a filtration assembly
Patent number
7,311,830
Issue date
Dec 25, 2007
Koch Membrane Systems, Inc.
David M. Colby
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Filtration element and method of constructing a filtration assembly
Patent number
7,063,789
Issue date
Jun 20, 2006
Koch Membrane Systems, Inc.
David M. Colby
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Patents Applications
last 30 patents
Information
Patent Application
SEAL PLATE FOR MEMBRANE SEPARATION DEVICE
Publication number
20140353239
Publication date
Dec 4, 2014
NanoH2O, Inc.
Frederick K. Lesan
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
RADIAL SPLIT RING SEAL FOR FILTRATION SYSTEMS
Publication number
20140299533
Publication date
Oct 9, 2014
Toray Industries, Inc.
Curtis J. Elwell
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
RADIAL SPLIT RING SEAL FOR FILTRATION SYSTEMS
Publication number
20130270172
Publication date
Oct 17, 2013
Curtis J. Elwell
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
RADIAL SPLIT RING SEAL FOR FILTRATION SYSTEMS
Publication number
20110084455
Publication date
Apr 14, 2011
Toray Membrane USA, Inc.
Curtis J. ELWELL
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
AXIAL LABYRINTH SEAL FOR FILTRATION SYSTEMS
Publication number
20110084013
Publication date
Apr 14, 2011
Toray Membrane USA, Inc.
Frederick K. LESAN
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Filtration element and method of constructing a filtration assembly
Publication number
20060180540
Publication date
Aug 17, 2006
Koch Membrane Systems, Inc.
David M. Colby
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Filtration element and method of constructing a filtration assembly
Publication number
20060070940
Publication date
Apr 6, 2006
Koch Membrane Systems, Inc.
David M. Colby
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Filtration element and method of constructing a filtration assembly
Publication number
20050035047
Publication date
Feb 17, 2005
David M. Colby
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL