Patents by Inventor Namhyun Chung

Namhyun Chung 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).

  • Compounds and methods for generating oxygen and free radicals used in general oxidation and reduction reactions
    Patent number: 5468628
    Abstract: Composition and methods; for carrying out a variety of oxidation reactions, reduction reactions, or both utilizing a free radical generating catalyst, a mediator, and a reductant are disclosed. The free radical generating catalyst is generally a peroxidase obtained from living organisms, such as white rot fungi. Suitable peroxidases include lignin peroxidase, horse radish peroxidase, and lactoperoxidase. Suitable mediators include veratryl alcohol, iodine, methoxybenzenes, Mn II, and ABTS. Suitable reductants include EDTA, oxalate, hydroquinones, quinones plus quinone reductase, and hydrogen peroxide.
    Type: Grant
    Filed: January 4, 1995
    Date of Patent: November 21, 1995
    Assignee: Utah State University Foundation
    Inventors: Steven D. Aust, David P. Barr, Thomas A. Grover, Manish M. Shah, Namhyun Chung
  • Compounds and methods for generating oxygen free radicals used in general oxidation and reduction reactions
    Patent number: 5389356
    Abstract: Composition and methods for carrying out a variety of oxidation reactions, reduction reactions, or both utilizing a free radical generating catalyst, a mediator, and a reductant are disclosed, The free radical generating catalyst is generally a peroxidase obtained from living organisms, such as white rot fungi. Suitable peroxidases include lignin peroxidase, horse radish peroxidase, and lactoperoxidase. Suitable mediators include veratryl alcohol, iodine, methoxybenzenes, Mn II, and ABTS. Suitable reductants include EDTA, oxalate, hydroquinones, quinones plus quinone reductase, and hydrogen peroxide. The free radical generating catalyst is generally activated in the presence of hydrogen peroxide and reacts with the mediator to form the free radical of the mediator, which is an oxidant. The free radical of the mediator in turn reacts with the reductant to form the free radical of the reductant, which is also a reductant.
    Type: Grant
    Filed: January 5, 1993
    Date of Patent: February 14, 1995
    Assignee: Utah State University Foundation
    Inventors: Steven D. Aust, David P. Barr, Thomas A. Grover, Manish M. Shah, Namhyun Chung