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Charles S. Hoffman Jr.
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Baltimore, MD, US
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Patents Grants
last 30 patents
Information
Patent Grant
Length-adjustable filter cartridge end caps, filter cartridges empl...
Patent number
7,473,360
Issue date
Jan 6, 2009
Pall Corporation
Charles S. Hoffman
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Filter cartridge assembly having a reusable support core structure
Patent number
6,096,207
Issue date
Aug 1, 2000
USF Filtration and Separations Group Inc.
Charles S. Hoffman
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Apparatus and method for making melt-blown nonwoven sheets
Patent number
5,955,012
Issue date
Sep 21, 1999
USF Fultration and Separations Group Inc.
Timothy W. Yingling
D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
Information
Patent Grant
Apparatus and method for making melt-blown nonwoven sheets
Patent number
5,829,708
Issue date
Nov 3, 1998
Memtec America Corporation
Timothy W. Yingling
D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
Information
Patent Grant
Method of making filtration media having integrally co-located supp...
Patent number
5,783,011
Issue date
Jul 21, 1998
Memtec America Corporation
Steven D. Barboza
D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
Information
Patent Grant
Apparatus for making melt-blown filtration media having integrally...
Patent number
5,733,581
Issue date
Mar 31, 1998
Memtec America Corporation
Steven D. Barboza
D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
Information
Patent Grant
Melt-blown filtration media having integrally co-located support an...
Patent number
5,681,469
Issue date
Oct 28, 1997
Memtec America Corporation
Steven D. Barboza
D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
Information
Patent Grant
Filter cartridges having nonwoven melt blown filtration media with...
Patent number
5,591,335
Issue date
Jan 7, 1997
Memtec America Corporation
Steven D. Barboza
D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
Patents Applications
last 30 patents
Information
Patent Application
Length-adjustable filter cartridge end caps, filter cartridges empl...
Publication number
20030183568
Publication date
Oct 2, 2003
Charles S. Hoffman
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Length-adjustable filter cartridges
Publication number
20030094408
Publication date
May 22, 2003
Charles C. Schuyler
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL