Patents by Inventor Haeng Ki Lee

Haeng Ki Lee 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 for enhancement of mechanical strength and COstorage in cementitious products
    Patent number: 10894743
    Abstract: A method for curing cementitious articles includes flowing dry steam and carbon dioxide (CO2) simultaneously into a curing chamber containing a cementitious article. A relative humidity within the curing chamber may be between about 50% and about 70% and a temperature within the curing chamber may be between about 50° C. and about 70° C. A dry steam and CO2 mixture with a CO2 concentration between 2.5 vol % and 40 vol % is provided in the curing chamber and the cementitious article is cured for a duration between about 4 hours and 16 hours. Cementitious products cured with the method may have a CO2 uptake of greater than 15 wt % and a mechanical strength at least 10% greater than a cementitious product cured only in dry steam or CO2.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: January 19, 2021
    Assignee: Saudi Arabian Oil Company
    Inventors: Issam T. Amr, Bandar Fadhel, Ali Shakir Al Hunaidy, Rami A. Bamagain, Haeng Ki Lee, Solmoi Park
  • METHOD FOR ENHANCEMENT OF MECHANICAL STRENGTH AND CO2 STORAGE IN CEMENTITIOUS PRODUCTS
    Publication number: 20190194074
    Abstract: A method for curing cementitious articles includes flowing dry steam and carbon dioxide (CO2) simultaneously into a curing chamber containing a cementitious article. A relative humidity within the curing chamber may be between about 50% and about 70% and a temperature within the curing chamber may be between about 50° C. and about 70° C. A dry steam and CO2 mixture with a CO2 concentration between 2.5 vol % and 40 vol % is provided in the curing chamber and the cementitious article is cured for a duration between about 4 hours and 16 hours. Cementitious products cured with the method may have a CO2 uptake of greater than 15 wt % and a mechanical strength at least 10% greater than a cementitious product cured only in dry steam or CO2.
    Type: Application
    Filed: December 27, 2017
    Publication date: June 27, 2019
    Applicant: Saudi Arabian Oil Company
    Inventors: Issam T. Amr, Bandar Fadhel, Ali Shakir Al Hunaidy, Rami A. Bamagain, Haeng Ki Lee, Solmoi Park