Patents by Inventor Hae Choon Chang

Hae Choon Chang 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).

  • Process for the preparation of monoterpenes using bacterium containing recombinant DNA
    Patent number: 5688673
    Abstract: A process for producing monoterpenes using a DNA segment Bacillus stearothermophilus in a recombinant bacterium, particularly Escherichia coli. The useful monoterpenes produced from limonene are perillyl alcohol, perillyl aldehyde, perillic acid (path A); alpha-terpineol (path B) or carveol and carvone (path C).
    Type: Grant
    Filed: July 28, 1995
    Date of Patent: November 18, 1997
    Assignee: Board of Trustees operating Michigan State University
    Inventors: Patrick J. Oriel, Srinivasan Savithiry, Hae Choon Chang
  • Process and bacterial cultures for the preparation of perillyl compounds
    Patent number: 5652137
    Abstract: A process for the preparation of monoterpene compounds (such as perillyl alcohol, aldehyde and .alpha.-terpineol) from limonene is described. The process uses Bacillus stearothermophilus which is effective at high temperatures (55.degree. to 70.degree. C.).
    Type: Grant
    Filed: September 5, 1995
    Date of Patent: July 29, 1997
    Assignee: Board of Trustees operating Michigan State University
    Inventors: Hae Choon Chang, Patrick J. Oriel