Patents by Inventor Michael Y. S. Hwang

Michael Y. S. 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).

  • Fingerprint systems employing iodine-based marking fluid
    Patent number: 5398812
    Abstract: A marking system comprising a rigid container and a quantity of fabric located therein and a quantity of marking fluid to saturate the fabric, the marking fluid comprised of a two to nine percent iodine in ethanol solution and the iodine/ethanol solution being mixed with about the same amount of water.
    Type: Grant
    Filed: January 27, 1994
    Date of Patent: March 21, 1995
    Inventor: Michael Y. S. Hwang