Patents by Inventor Patrick Y. Wang

Patrick Y. Wang 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).

  • Pentose fermentation with selected yeast
    Patent number: 4477569
    Abstract: It has been found possible to ferment the pentose D-xylose directly to ethanol with the selected yeast Pachysolen tannophilus. At least an initial aerobic stage is desirable. Improved yields have been obtained when the yeast cells are recycled continually at high cell densities. Fermentation of D-galactose and other hexoses along with D-xylose has been found possible with selected strains or mutants.
    Type: Grant
    Filed: February 18, 1982
    Date of Patent: October 16, 1984
    Assignee: Canadian Patents & Development Limited
    Inventors: Henry Schneider, Ryszard Maleszka, Patrick Y. Wang, Ivan A. Veliky, Yui-Kwok Chan