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David C. Liu
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Marietta, GA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Hardwood flooring with sliding locking mechanism
Patent number
8,191,328
Issue date
Jun 5, 2012
David C. Liu
E04 - BUILDING
Information
Patent Grant
Horizontally engineered hardwood floor and method of installation
Patent number
8,166,718
Issue date
May 1, 2012
David C. Liu
E04 - BUILDING
Information
Patent Grant
Flooring boards with press down locking mechanism
Patent number
8,037,656
Issue date
Oct 18, 2011
David C. Liu
E04 - BUILDING
Information
Patent Grant
Water resistant wide flooring boards
Patent number
8,029,880
Issue date
Oct 4, 2011
David C. Liu
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Locking mechanism for flooring boards
Patent number
7,805,903
Issue date
Oct 5, 2010
David C. Liu
E04 - BUILDING
Patents Applications
last 30 patents
Information
Patent Application
FLOOR AND TILE SYSTEM WITH PAD
Publication number
20120017528
Publication date
Jan 26, 2012
David Liu
E04 - BUILDING
Information
Patent Application
LOCKING MECHANISM FOR FLOORING BOARDS
Publication number
20110036041
Publication date
Feb 17, 2011
David C. Liu
E04 - BUILDING
Information
Patent Application
Floor And Tile With Padding
Publication number
20110030300
Publication date
Feb 10, 2011
David C. Liu
E04 - BUILDING
Information
Patent Application
PREINSTALLED GLUE SYSTEM FOR FLOOR
Publication number
20100236171
Publication date
Sep 23, 2010
David C. Liu
E04 - BUILDING
Information
Patent Application
Horizontally Engineered Hardwood Floor and Method of Installation
Publication number
20100088990
Publication date
Apr 15, 2010
David C. Liu
E04 - BUILDING
Information
Patent Application
Flooring Boards With Press Down Locking Mechanism
Publication number
20100031594
Publication date
Feb 11, 2010
David C. Liu
E04 - BUILDING
Information
Patent Application
Water Resistant Wide Flooring Boards
Publication number
20090269522
Publication date
Oct 29, 2009
David C. Liu
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Application
Rainwater Collection and Storage System
Publication number
20090212051
Publication date
Aug 27, 2009
David C. Liu
E03 - WATER SUPPLY SEWERAGE
Information
Patent Application
Locking Mechanism For Flooring Boards
Publication number
20090151290
Publication date
Jun 18, 2009
David C. Liu
E04 - BUILDING