Patents by Inventor Gi-Wook Choi

Gi-Wook Choi 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 producing bioproducts using hydrolyzed organic wastes of fermentation
    Patent number: 9777296
    Abstract: Provided is a method for producing bioproducts, including the steps of: culturing a first microorganism to produce bioalcohol; hydrolyzing the first microorganism; separating the bioalcohol; obtaining wastes from the hydrolyzed bioalcohol fermentation; and inoculating a second microorganism into the wastes from the hydrolyzed bioalcohol fermentation.
    Type: Grant
    Filed: May 14, 2013
    Date of Patent: October 3, 2017
    Assignees: GS CALTEX CORPORATION, CHANGHAE ETHANOL CO., LTD.
    Inventors: Hyo-Hak Song, Julia Lee, Gi-Wook Choi, Se-Kwon Moon
  • METHOD FOR PRODUCING BIOPRODUCTS USING HYDROLYZED ORGANIC WASTES OF FERMENTATION
    Publication number: 20150140627
    Abstract: Provided is a method for producing bioproducts, including the steps of: culturing a first microorganism to produce bioalcohol; hydrolyzing the first microorganism; separating the bioalcohol; obtaining wastes from the hydrolyzed bioalcohol fermentation; and inoculating a second microorganism into the wastes from the hydrolyzed bioalcohol fermentation.
    Type: Application
    Filed: May 14, 2013
    Publication date: May 21, 2015
    Inventors: Hyo-Hak Song, Julia Lee, Gi-Wook Choi, Se-Kwon Moon
  • Process for the production of bio-fuels and/or bio-chemicals from biomass fermentation
    Patent number: 8685684
    Abstract: Disclosed is a preparation method for bio-fuel materials and bio-chemicals comprising the following steps: preparing a medium comprising fermentation waste generated in an alcohol production process; inoculating a first microorganism into the medium; and culturing the medium wherein the first microorganism was inoculated. More specifically, the preparation method for bio-fuel materials and bio-chemicals comprises the following steps: fermenting hexoses from a mixture of pentoses and hexoses to produce an ethanol fermentation broth; separating and purifying the ethanol fermentation broth; preparing a medium comprising the fermentation waste produced in the separation and purification step; inoculating a first microorganism into the medium; and culturing the medium wherein the first microorganism was inoculated.
    Type: Grant
    Filed: September 13, 2010
    Date of Patent: April 1, 2014
    Assignees: GS Caltex Corporation, Changhae Ethanol Co., Ltd.
    Inventors: Julia Lee, Hyo Hak Song, Moon Ho Ueom, Jung Hee Cho, Do Young Seung, Gi-Wook Choi, Se-Kwon Moon, Sung Hoon Park, Yule Kim, Min Hee Han
  • PREPARATION METHOD FOR BIO-FUEL MATERIALS AND BIO-CHEMICALS
    Publication number: 20120231511
    Abstract: Disclosed is a preparation method for bio-fuel materials and bio-chemicals comprising the following steps: preparing a medium comprising fermentation waste generated in an alcohol production process; inoculating a first microorganism into the medium; and culturing the medium wherein the first microorganism was inoculated. More specifically, the preparation method for bio-fuel materials and bio-chemicals comprises the following steps: fermenting hexoses from a mixture of pentoses and hexoses to produce an ethanol fermentation broth; separating and purifying the ethanol fermentation broth; preparing a medium comprising the fermentation waste produced in the separation and purification step; inoculating a first microorganism into the medium; and culturing the medium wherein the first microorganism was inoculated.
    Type: Application
    Filed: September 13, 2010
    Publication date: September 13, 2012
    Applicants: CHANGHAE ETHANOL CO., LTD., GS CALTEX CORPORATION
    Inventors: Julia Lee, Hyo Hak Song, Moon Ho Ueom, Jung Hee Cho, Do Young Seung, Gi-Wook Choi, Se-Kwon Moon, Sung Hoon Park, Yule Kim, Min Hee Han