Mark E. Lee Lum

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Maraval, TT

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Patents Grantslast 30 patents

Information Patent Grant
Ventilated building block and related mold components
- Patent number 9,987,765
- Issue date Jun 5, 2018
- Mark E. Lee Lum
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Mold for ventilated building block
- Patent number 7,997,893
- Issue date Aug 16, 2011
- Mark E. Lee Lum
- E04 - BUILDING
Information Patent Grant
Ventilated building block
- Patent number 7,757,451
- Issue date Jul 20, 2010
- Mark E. Lee Lum
- E04 - BUILDING

Patents Applicationslast 30 patents

Information Patent Application
VENTILATED BUILDING BLOCK AND RELATED MOLD COMPONENTS
- Publication number 20160207219
- Publication date Jul 21, 2016
- Mark E. Lee Lum
- E04 - BUILDING
Information Patent Application
VENTILATED BUILDING BLOCK WITH DRAIN FEATURE
- Publication number 20100242390
- Publication date Sep 30, 2010
- Mark E. Lee Lum
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Application
VENTILATED BUILDING BLOCK
- Publication number 20100227017
- Publication date Sep 9, 2010
- Mark E. Lee Lum
- E04 - BUILDING
Information Patent Application
VENTILATED BUILDING BLOCK
- Publication number 20100223868
- Publication date Sep 9, 2010
- Mark E. Lee Lum
- F24 - HEATING RANGES VENTILATING
Information Patent Application
Ventilated building block
- Publication number 20100122507
- Publication date May 20, 2010
- Mark E. Lee Lum
- E04 - BUILDING