Patents by Inventor Chung K. Rhee

Chung K. Rhee 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).

  • Fluorescent and NMR sensitive pH indicators
    Patent number: 5639906
    Abstract: This invention relates to compositions and methods useful for measuring pH generally, and intracellular pH specifically, and, more particularly, to a new class of fluorescent and fluorinated (NMR sensitive) aromatic compounds having excitation emission wavelengths in the ultraviolet or or visible portions of the electromagnetic spectrum, useful as pH indicators, as well as fluorine containing analogs useful in NMR spectroscopic determinations.
    Type: Grant
    Filed: October 11, 1994
    Date of Patent: June 17, 1997
    Assignee: The United States of America as represented by the Department of Health and Human Services
    Inventors: Robert E. London, Louis A. Levy, Chung K. Rhee