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Chung-Hsien Zah
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Kennesaw, GA, US
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Patents Grants
last 30 patents
Information
Patent Grant
System and method for floor covering installation
Patent number
8,468,771
Issue date
Jun 25, 2013
Interface, Inc.
Keith N. Gray
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
System and method for floor covering installation
Patent number
8,220,221
Issue date
Jul 17, 2012
Interface, Inc.
Keith N. Gray
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
System and method for floor covering installation
Patent number
7,757,457
Issue date
Jul 20, 2010
Interface, Inc.
Chung-Hsien Zah
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Permanent stain resistant treatment for polyamide fibers
Patent number
5,252,375
Issue date
Oct 12, 1993
Interface, Inc.
Albin F. Turbak
D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Patents Applications
last 30 patents
Information
Patent Application
SYSTEM AND METHOD FOR FLOOR COVERING INSTALLATION
Publication number
20100176189
Publication date
Jul 15, 2010
Interface, Inc.
Keith N. Gray
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
System and Method for Floor Covering Installation
Publication number
20100024329
Publication date
Feb 4, 2010
Interface, Inc.
Keith N. Gray
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
System and Method for Floor Covering Installation
Publication number
20080213529
Publication date
Sep 4, 2008
Interface, Inc.
Keith N. Gray
G06 - COMPUTING CALCULATING COUNTING