Patents by Inventor Hui-Chan Tung

Hui-Chan Tung 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).

  • Nitrogen-containing aromatic heterocyclic ligand-metal complexes and their use for the activation of hydrogen peroxide and dioxygen in the reaction of organic compounds
    Patent number: 5149880
    Abstract: Nitrogen-containing aromatic heterocyclic ligand-metal complexes and their use for the activation of hydrogen peroxide and dioxgen are disclosed. Processes whereby activated hydrogen peroxide or dioxygen are used to transform various organic substrates are also disclosed. In particular, processes for the conversion of methylenic carbons to carbonyls, for the dioxygenation of aryl olefins, acetylenes and aryl-.alpha.-diols, for the oxidation of alcohols and aldehydes and for the removal of mercaptans from gaseous streams and for the removal of hydrogen sulfide and/or mercaptans from liquid streams are disclosed.
    Type: Grant
    Filed: August 24, 1990
    Date of Patent: September 22, 1992
    Assignee: The Texas A & M University System
    Inventors: Donald T. Sawyer, Ceshing Sheu, Andrzej Sobkowiak, Hui-Chan Tung