Patents by Inventor Win-Pen Hsu

Win-Pen Hsu 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).

  • Patent number: 4790238
    Abstract: A process for producing ethanol or fermented beverages such as beer or wine wherein a suitable fermentable substrate (e.g., brewers wort, must) is contacted in a batch process with particles comprised of yeast cells encapsulated or immobilized within an insoluble, porous, semi-permeable matrix material at conditions effective for fermentation and maturation. The process employs means for maintaining efficient contact of substrate and yeast-containing particles.
    Type: Grant
    Filed: April 2, 1987
    Date of Patent: December 13, 1988
    Assignee: J. E. Siebel Sons' Company Inc.
    Inventor: Win-Pen Hsu
  • Patent number: 4659662
    Abstract: Ethanol and fermented beverages such as beer or wine are produced in a batch process by contacting a fermentable substrate with yeast cells encapsulated within a porous, semi-permeable material. Contacting is carrier out in a vessel containing the substrate and a semi-permeable retaining means submerged in the substrate. Encapsulated yeast cells are maintained below the retaining means and in contact with the substrate during fermentation while being freely movable in a portion of the substrate. The retaining means is permeable to the substrate and is substantially impermeable to the encapsulated yeast cells. Preferably, the matrix encapsulating the yeast cells is an alginate gel.
    Type: Grant
    Filed: March 26, 1984
    Date of Patent: April 21, 1987
    Assignee: J. E. Siebel Sons' Company, Inc.
    Inventor: Win-Pen Hsu