Patents by Inventor Yaw H. Hwang

Yaw H. Hwang 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).

  • Bimetallic complexes as catalysts in an oxidation process
    Patent number: 5223631
    Abstract: Disclosed is an olefin epoxidation process that contacting an olefinically unsaturated substrate with oxygen in the presence of catalytic amount of a bimetallic complex under the reaction conditions such that the olefin is at least partially oxidized. The metals introduced in the bimetallic complex are independently selected from vanadium, chromium, manganese, iron, cobalt, nickel, copper, molybdenum, ruthenium, rhodium, palladium, tungsten, rhenium, osmium, iridum or platinum.
    Type: Grant
    Filed: June 30, 1992
    Date of Patent: June 29, 1993
    Assignee: National Science Council
    Inventors: Cheu P. Cheng, Yaw H. Hwang, Ching C. Liu