Patents by Inventor Yung-Chyung Wang

Yung-Chyung Wang 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).

  • Test means, test device and method for determining the ionic strength or specific gravity of a liquid sample
    Patent number: 4318709
    Abstract: A test means for determining the ionic strength or specific gravity of an aqueous test sample, the test means comprising a weakly acidic or weakly basic polyelectrolyte which is at least partially neutralized, and an indicator means capable of producing a detectable response to ion exchange between the polyelectrolyte and the sample. The test device comprises a carrier matrix incorporated with the test means, and the method for its use comprises contacting an aqueous test sample with the device and observing a detectable response.
    Type: Grant
    Filed: July 10, 1980
    Date of Patent: March 9, 1982
    Assignee: Miles Laboratories, Inc.
    Inventors: Richard D. Falb, Sisto N. Stiso, Yung-Chyung Wang, William I. White, Rodric H. White-Stevens