Patents by Inventor Woo Il Jo

Woo Il Jo 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).

  • Spray pump
    Patent number: 9566596
    Abstract: A spray pump is provided where two seal caps are arranged in an upper portion and a lower portion within a cylinder housing so as to prevent the contents from leaking, the cylinder housing a wall surface with one or more leakage discharge holes so that the content which can be accumulated within the cylinder housing is discharged through the leakage discharge holes rather than a content flow path, thereby enabling an efficient operation.
    Type: Grant
    Filed: September 20, 2012
    Date of Patent: February 14, 2017
    Assignee: YONWOO CO., LTD.
    Inventors: Seong-Ho Kim, Chin Wook Chung, Cheol Ho Jang, Hyung Sub Lee, Woo Il Jo, Joong Cho Kook
  • SPRAY PUMP
    Publication number: 20140217124
    Abstract: A spray pump is provided where two seal caps are arranged in an upper portion and a lower portion within a cylinder housing so as to prevent the contents from leaking, the cylinder housing a wall surface with one or more leakage discharge holes so that the content which can be accumulated within the cylinder housing is discharged through the leakage discharge holes rather than a content flow path, thereby enabling an efficient operation.
    Type: Application
    Filed: September 20, 2012
    Publication date: August 7, 2014
    Inventors: Seong-Ho Kim, Chin Wook Chung, Cheol Ho Jang, Hyung Sub Lee, Woo Il Jo, Joong Cho Kook