Patents by Inventor Dong-Won Hwang

Dong-Won Hwang 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).

  • Methods of monitoring rinsing solutions and related systems and reagents
    Publication number: 20050227363
    Abstract: Monitoring metal contamination of a rinsing solution may include providing a sample of the rinsing solution, and mixing the sample of the rinsing solution with a monitoring reagent to provide a monitoring mixture. A property of the monitoring mixture that is dependent on a concentration of a metal in the rinsing solution may then be measured. More particularly, the property of the monitoring mixture may be an absorbency of the monitoring mixture with respect to electromagnetic radiation transmitted through the monitoring mixture. Related systems and reagents are also discussed.
    Type: Application
    Filed: September 28, 2004
    Publication date: October 13, 2005
    Inventors: Dong-won Hwang, Pil-kwon Jun, Sung-jae Lee, Jae-seok Lee, Sang-mun Chon, In-hoi Doh