Patents by Inventor Sang Chul Bang

Sang Chul Bang 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).

  • Method of manufacturing soil reinforced by microbe-based bio-binders and soil produced by the method
    Patent number: 9074134
    Abstract: The present invention relates to a method of manufacturing soil reinforced by microbe-based bio-binders and soil produced by the method. The bio-binders are not harmful to humans, do not cause environmental pollution and secure sufficiently the soil strength and resistance against wind. According to the method, the soil is prepared by binding sand whose major components are silica and alumina, ureolytic microbes, urea, calcium ion, and polymer fibers, and the content of polymer fibers in sand ranges from 0.05 wt % to 5 wt %. In addition, it is preferable that the microbes provide CaCO3 at a rate at 1˜7×10?9 g CaCO3 ppt cell?1 hr?1 under optimum conditions.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: July 7, 2015
    Assignees: LOTTE ENGINEERING & CONSTRUCTION, ECHO PHILE, SOUTH DAKOTA SCHOOL OF MINES AND TECHNOLOGY
    Inventors: Sang Chul Bang, Sookie S. Bang, Seong Rok Choi, Seok Jin Lee, Joo Ho Lee, Jong Sun Kim
  • METHOD OF MANUFACTURING SOIL REINFORCED BY MICROBE-BASED BIO-BINDERS AND SOIL PRODUCED BY THE METHOD
    Publication number: 20140238267
    Abstract: The present invention relates to a method of manufacturing soil reinforced by microbe-based bio-binders and soil produced by the method. The bio-binders are not harmful to humans, do not cause environmental pollution and secure sufficiently the soil strength and resistance against wind. According to the method, the soil is prepared by binding sand whose major components are silica and alumina, ureolytic microbes, urea, calcium ion, and polymer fibers, and the content of polymer fibers in sand ranges from 0.05 wt % to 5 wt %. In addition, it is preferable that the microbes provide CaCO3 at a rate at 1˜7×10?9 g CaCO3 ppt cell?1 hr?1 under optimum conditions.
    Type: Application
    Filed: November 10, 2011
    Publication date: August 28, 2014
    Applicants: LOTTE ENGINEERING & CONSTRUCTION, SOUTH DAKOTA SCHOOL OF MINES AND TECHNOLOGY, ECHO PHILE
    Inventors: Sang Chul Bang, Sookie S. Bang, Seong Rok Choi, Seok Jin Lee, Joo Ho Lee, Jong Sun Kim