Patents by Inventor Jung-Hak Cha

Jung-Hak Cha 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).

  • Patent number: 7332350
    Abstract: A one-step diagnostic device for simultaneously detecting and distinguishing between a normal pregnancy and an ectopic pregnancy and methods for preparing the device are disclosed. Utilizing the device and principles of the present invention, normal pregnancy and ectopic pregnancy can be rapidly and accurately determined at an early stage by immunologically detecting the morphological differences between human chorionic gonadotropin (hCG) and modified forms thereof, which are secreted into the body fluid of a pregnant female.
    Type: Grant
    Filed: February 10, 2003
    Date of Patent: February 19, 2008
    Assignee: Humasis Co., Ltd.
    Inventors: Jin-Dong Chang, Jung-Hak Cha, Jung-Hyun Nam
  • Publication number: 20030153093
    Abstract: A one-step diagnostic device for simultaneously detecting and distinguishing between a normal pregnancy and an ectopic pregnancy and methods for preparing the device are disclosed. Utilizing the device and principles of the present invention, normal pregnancy and ectopic pregnancy can be rapidly and accurately determined at an early stage by immunologically detecting the morphological differences between human chorionic gonadotropin (hCG) and modified forms thereof, which are secreted into the body fluid of a pregnant female.
    Type: Application
    Filed: February 10, 2003
    Publication date: August 14, 2003
    Applicant: HUMASIS CO., LTD.
    Inventors: Jin-Dong Chang, Jung-Hak Cha, Jung-Hyun Nam