Patents by Inventor Wei-jen Kung

Wei-jen Kung 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).

  • Enantioselective hydrolysis of N-acylamino acid esters using a combined enzyme system
    Patent number: 4670395
    Abstract: Disclosed is combination of an acylase and esterase for selective enzymatic hydrolysis of only the L-isomer of an L and D mixture of .alpha.N-acyl-.alpha.-amino acid ester whose alpha carbon atom is chiral to yield a mixture containing L-.alpha.-amino acid and D-.alpha.-N-acyl-.alpha.-amino acid ester but essentially no D-.alpha.-amino acid.
    Type: Grant
    Filed: November 13, 1984
    Date of Patent: June 2, 1987
    Assignee: The Standard Oil Company
    Inventors: Wei-Jen Kung, James D. Burrington, Mark C. Cesa
  • Polymer catalyst transducers
    Patent number: 4560534
    Abstract: Polymer-catalyst transducers are used for detecting one or more constituents in a sample. Changes in conductivity of the polymer-catalyst transducers as a result of electron density changes are measured to provide an indication of a particular constituent present in the sample. Such conductivity changes can be measured using a conductivity meter. The polymer-catalyst transducers are particularly useful for the determination of glucose in whole blood.
    Type: Grant
    Filed: November 2, 1983
    Date of Patent: December 24, 1985
    Assignee: Miles Laboratories, Inc.
    Inventors: Wei-jen Kung, Paul O. Vogelhut