Patents by Inventor Wen-Haw Hsu

Wen-Haw 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).

  • Erythritol-producing yeast strains
    Patent number: 6448053
    Abstract: A method of producing erythritol. The method includes growing in a culture an isolated yeast strain that possesses certain unique characteristics and is capable of converting glucose to erythritol in a glucose-containing medium, and purifying erythritol from the culture.
    Type: Grant
    Filed: September 25, 2001
    Date of Patent: September 10, 2002
    Assignee: Food Industry Research and Development Institute
    Inventors: Shie-Jea Lin, Chiou-Yen Wen, Wen-Haw Hsu, Guey-Yuh Liou, Wen-Shen Chu
  • Erythritol-producing yeast strains
    Publication number: 20020034795
    Abstract: A yeast strain capable of converting glucose to erythritol, said strain having the following identifying characteristics: an absence of motile spores; septate mycelia; asexual reproduction; an absence of reniform cells; conidia optionally formed on short denticles but not on elongate stalks; an absence of ballistoconidia; non-monopolar budding on a broad base; acropetal chains of blastoconidia; dark brown, thick-walled chlamydospores; an ability to assimilate sucrose, glycerol and maltose; an inability to assimilate lactose; an inability to ferment galactose; an ability to grow in a vitamin-free medium; and an ability to grow at 25° C. to 36° C.
    Type: Application
    Filed: September 25, 2001
    Publication date: March 21, 2002
    Inventors: Shie-Jea Lin, Chiou-Yen Wen, Wen-Haw Hsu, Guey-Yuh Liou, Wen-Shen Chu
  • Erythritol-producing yeast strains
    Patent number: 6300107
    Abstract: A yeast strain capable of converting glucose to erythritol, said strain having the following identifying characteristics: an absence of motile spores; septate mycelia; asexual reproduction; an absence of reniform cells; conidia optionally formed on short denticles but not on elongate stalks; an absence of ballistoconidia; non-monopolar budding on a broad base; acropetal chains of blastoconidia; dark brown, thick-walled chlamydospores; an ability to assimilate sucrose, glycerol and maltose; an inability to assimilate lactose; an inability to ferment galactose; an ability to grow in a vitamin-free medium; and an ability to grow at 25° C. to 36° C.
    Type: Grant
    Filed: June 2, 2000
    Date of Patent: October 9, 2001
    Assignee: Food Industry Research & Development Institute
    Inventors: Shie-Jea Lin, Chiou-Yen Wen, Wen-Haw Hsu, Guey-Yuh Liou, Wen-Shen Chu