Patents by Inventor Yoonhyeok Choi

Yoonhyeok 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).

  • Publication number: 20110104026
    Abstract: Disclosed herein is a single-use extraction apparatus which is disposed of after use. The extraction apparatus includes a tube plate having a tube therein, and a column plate. The column plate is detachably coupled to the tube plate, and includes a column which corresponds to the tube of the tube plate. A filter is provided in the column and made of a material which adsorbs or desorbs biochemical materials included in biological samples. A hollow suction port is provided at a predetermined position of the column plate to connect to a vacuum pump. The apparatus is capable of extracting biochemical materials from biological samples by using vacuum pressure without centrifugal separation, thus realizing a simple, convenient and rapid extracting operation, and has a small size so that it rapidly reaches desired vacuum pressure and uniform vacuum pressure can act on the column.
    Type: Application
    Filed: January 6, 2010
    Publication date: May 5, 2011
    Inventors: Seongjun YOON, Sanghyeon Kang, Jisung Park, Bona Park, Mansoon Park, Yoonhyeok Choi