Patents by Inventor Mark E. Lee Lum

Mark E. Lee Lum has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9987765
    Abstract: A mold assembly is used for manufacturing a ventilated building block. The ventilated building blocks are configured such that adjacent stacked blocks are inverted and reversed, thereby establishing front-to-back air passages that do not provide a sight line and prevent rain from passing through while enabling air ventilation.
    Type: Grant
    Filed: September 16, 2014
    Date of Patent: June 5, 2018
    Inventor: Mark E. Lee Lum
  • Publication number: 20160207219
    Abstract: A mold assembly is used for manufacturing a ventilated building block. The ventilated building blocks are configured such that adjacent stacked blocks are inverted and reversed, thereby establishing front-to-back air passages that do not provide a sight line and prevent rain from passing through while enabling air ventilation.
    Type: Application
    Filed: September 16, 2014
    Publication date: July 21, 2016
    Inventor: Mark E. LEE LUM
  • Patent number: 7997893
    Abstract: A building block for a ventilated wall includes an elongated center portion flanked by a pair of substantially parallel side walls oriented substantially perpendicularly to the center portion. The center portion has a first vertical wall and a second sloped wall, the second sloped wall extending between a relatively thicker bottom wall of the center portion and a relatively thinner top wall of the center portion. The first wall is co-planar with first edges of the side walls. A stacked arrangement of such blocks, where adjacent blocks are inverted and reversed, establishes front-to-back air passages that do not provide a sight line, and which prevent rain from passing through. A mold assembly for manufacturing the blocks is also disclosed.
    Type: Grant
    Filed: May 21, 2010
    Date of Patent: August 16, 2011
    Inventor: Mark E. Lee Lum
  • Publication number: 20100242390
    Abstract: A building block for a ventilated wall includes an elongated center portion flanked by a pair of substantially parallel side walls oriented substantially perpendicularly to the center portion. The center portion has upper and lower edges, a first substantially vertical rear wall and a second substantially vertical front wall, the substantially parallel side walls extending beyond the second substantially vertical front wall. A first drain groove portion extends across the substantially vertical front wall and aligned with second and third drain groove portions provided on respective facing surfaces of the substantially parallel side walls.
    Type: Application
    Filed: June 11, 2010
    Publication date: September 30, 2010
    Inventor: Mark E. LEE LUM
  • Publication number: 20100227017
    Abstract: A building block for a ventilated wall includes an elongated center portion flanked by a pair of substantially parallel side walls oriented substantially perpendicularly to the center portion. The center portion has a first vertical wall and a second sloped wall, the second sloped wall extending between a relatively thicker bottom wall of the center portion and a relatively thinner top wall of the center portion. The first wall is co-planar with first edges of the side walls. A stacked arrangement of such blocks, where adjacent blocks are inverted and reversed, establishes front-to-back air passages that do not provide a sight line, and which prevent rain from passing through. A mold assembly for manufacturing the blocks is also disclosed.
    Type: Application
    Filed: May 21, 2010
    Publication date: September 9, 2010
    Inventor: Mark E. Lee LUM
  • Publication number: 20100223868
    Abstract: A building block for a ventilated wall includes an elongated center portion flanked by a pair of substantially parallel side walls oriented substantially perpendicularly to the center portion. The center portion has a first vertical wall and a second sloped wall, the second sloped wall extending between a relatively thicker bottom wall of the center portion and a relatively thinner top wall of the center portion. The first wall is co-planar with first edges of the side walls. A stacked arrangement of such blocks, where adjacent blocks are inverted and reversed, establishes front-to-back air passages that do not provide a sight line, and which prevent rain from passing through. A mold assembly for manufacturing the blocks is also disclosed.
    Type: Application
    Filed: May 21, 2010
    Publication date: September 9, 2010
    Inventor: Mark E. Lee Lum
  • Patent number: 7757451
    Abstract: A building block for a ventilated wall includes an elongated center portion flanked by a pair of substantially parallel side walls oriented substantially perpendicularly to the center portion. The center portion has a first vertical wall and a second sloped wall, the second sloped wall extending between a relatively thicker bottom wall of the center portion and a relatively thinner top wall of the center portion. The first wall is co-planar with first edges of the side walls. A stacked arrangement of such blocks, where adjacent blocks are inverted and reversed, establishes front-to-back air passages that do not provide a sight line, and which prevent rain from passing through. A mold assembly for manufacturing the blocks is also disclosed.
    Type: Grant
    Filed: November 18, 2008
    Date of Patent: July 20, 2010
    Inventor: Mark E. Lee Lum
  • Publication number: 20100122507
    Abstract: A building block for a ventilated wall includes an elongated center portion flanked by a pair of substantially parallel side walls oriented substantially perpendicularly to the center portion. The center portion has a first vertical wall and a second sloped wall, the second sloped wall extending between a relatively thicker bottom wall of the center portion and a relatively thinner top wall of the center portion. The first wall is co-planar with first edges of the side walls. A stacked arrangement of such blocks, where adjacent blocks are inverted and reversed, establishes front-to-back air passages that do not provide a sight line, and which prevent rain from passing through. A mold assembly for manufacturing the blocks is also disclosed.
    Type: Application
    Filed: November 18, 2008
    Publication date: May 20, 2010
    Inventor: Mark E. Lee Lum
  • Patent number: D729411
    Type: Grant
    Filed: June 12, 2013
    Date of Patent: May 12, 2015
    Inventor: Mark E. Lee Lum