Patents by Inventor Wen-Chien Lee

Wen-Chien Lee 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).

  • Publication number: 20140073054
    Abstract: The invention provides a yeast strain and a method for making the same. The method has the step of replacing the regulation region upstream of the hsp104 gene in the genome of the yeast, so as to accelerate and prolong the expression span of hsp104 gene and enhance the capability of the yeast to ferment and produce ethanol in a high-temperature environment. The yeast is capable of fermenting glucose at a temperature higher than 42° C. to produce ethanol, or biomass ethanol, wherein the ethanol production ratio based on fermentation of glucose is higher than 97%. Being able to synchronize the degradation/hydrolysis stage and fermentation stage of biomass ethanol producing process, the yeast in accordance with the present invention is able to lower the production cost of biomass ethanol and further raise the productivity with its high ethanol production ratio.
    Type: Application
    Filed: September 11, 2012
    Publication date: March 13, 2014
    Applicant: NATIONAL CHUNG CHENG UNIVERSITY
    Inventors: KUANG-TSE HUANG, Hau-Ren Chen, Wen-Chien Lee, Chang-Yu Wu, Hsin-Cheng Chen, Yu-Long Wu, Meng-Tsu Tsai, Ju-Ping Yeh, Yu-Wei Liang, Yu-Shiuan Lai
  • Patent number: 8669316
    Abstract: Magnetic ion-exchange polymer microspheres and a method for preparing the same are provided. The method for preparing the magnetic ion-exchange polymer microspheres includes swelling the ion-exchange resins and allowing the magnetic nano-particles to enter the interior of the ion-exchange resins. The magnetic ion-exchange resins of the present invention have various functional groups can be introduced onto the surfaces thereof. Therefore, the magnetic ion-exchange resins of the present invention can be applied in many areas, and thereby they have high economic value.
    Type: Grant
    Filed: May 29, 2012
    Date of Patent: March 11, 2014
    Assignee: National Chung Cheng University
    Inventors: Wen-Chien Lee, Yu-Zong Lin, Yu-Sheng Lin, Tzu-Hsien Wang
  • Patent number: 8663970
    Abstract: The invention provides a yeast strain and a method for making the same. The method has the step of replacing the regulation region upstream of the hsp104 gene in the genome of the yeast, so as to accelerate and prolong the expression span of hsp104 gene and enhance the capability of the yeast to ferment and produce ethanol in a high-temperature environment. The yeast is capable of fermenting glucose at a temperature higher than 42° C. to produce ethanol, or biomass ethanol, wherein the ethanol production ratio based on fermentation of glucose is higher than 97%. Being able to synchronize the degradation/hydrolysis stage and fermentation stage of biomass ethanol producing process, the yeast in accordance with the present invention is able to lower the production cost of biomass ethanol and further raise the productivity with its high ethanol production ratio.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: March 4, 2014
    Assignee: National Chung Cheng University
    Inventors: Kuang-Tse Huang, Hau-Ren Chen, Wen-Chien Lee, Chang-Yu Wu, Hsin-Cheng Chen, Yu-Long Wu, Meng-Tsu Tsai, Ju-Ping Yeh, Yu-Wei Liang, Yu-Shiuan Lai
  • Publication number: 20130149772
    Abstract: Magnetic ion-exchange polymer microspheres and a method for preparing the same are provided. The method for preparing the magnetic ion-exchange polymer microspheres includes swelling the ion-exchange resins and allowing the magnetic nano-particles to enter the interior of the ion-exchange resins. The magnetic ion-exchange resins of the present invention have various functional groups can be introduced onto the surfaces thereof. Therefore, the magnetic ion-exchange resins of the present invention can be applied in many areas, and thereby they have high economic value.
    Type: Application
    Filed: May 29, 2012
    Publication date: June 13, 2013
    Applicant: NATIONAL CHUNG CHENG UNIVERSITY
    Inventors: Wen-Chien Lee, Yu-Zong Lin, Yu-Sheng Lin, Tzu-Hsien Wang
  • Patent number: 7754278
    Abstract: Magnetic polymer microbeads and a method for preparing the same are provided. The method for preparing the magnetic polymer microbeads includes the following steps: preparing polymer particles; immersing the polymer particles into a solution in order to swell the polymer particles; adding magnetic nanoparticles to the solution and allowing the magnetic nanoparticles to enter an interior of the polymer particles; and separating the polymer particles from the solution, wherein the polymer particle is made of polystyrene, or a copolymer containing styrene, and the solution includes a medium polar solvent. The average particle size of the magnetic polymer microbeads of the present invention ranges from submicrons to microns. The magnetic polymer microbeads of the present invention have high magnetization, and the various functional groups can be introduced onto the surfaces thereof.
    Type: Grant
    Filed: December 13, 2005
    Date of Patent: July 13, 2010
    Assignee: National Chung Cheng University
    Inventors: Wen-Chien Lee, Ting-Hao Chung
  • Publication number: 20060130192
    Abstract: Magnetic polymer microbeads and a method for preparing the same are provided. The method for preparing the magnetic polymer microbeads includes the following steps: preparing polymer particles; immersing the polymer particles into a solution in order to swell the polymer particles; adding magnetic nanoparticles to the solution and allowing the magnetic nanoparticlse to enter an interior of the polymer particles; and separating the polymer particles from the solution, wherein the polymer particle is made of polystyrene, or a copolymer containing styrene, and the solution includes a medium polar solvent. The average particle size of the magnetic polymer microbeads of the present invention ranges from submicrons to microns. The magnetic polymer microbeads of the present invention have high magnetization, and the various functional groups can be introduced onto the surfaces thereof.
    Type: Application
    Filed: December 13, 2005
    Publication date: June 15, 2006
    Inventors: Wen-Chien Lee, Ting-Hao Chung
  • Patent number: 6379922
    Abstract: An enzyme membrane reactor is designed to enhance the production efficiency of foods, pharmaceutical products, and other bioproducts. The reactor is formed of a cap and a container in which a plurality of the biocatalyst-immobilized sheets are located at an interval. The reactor works in such a way that a liquid reaction mixture is introduced into the container via an inlet of the container, thereby resulting in the synthesis of a bioproduct mixture which is collected via an outlet of the reactor. The immobilized biocatalyst is prepared by entrapping a biocatalyst with a gluten matrix. The immobilized biocatalyst is deposited on supporting meshes contained by a plurality of frames that are inserted in a plurality of pairs of grooves contained by two opposite side walls of the container. Deactivated biocatalyst-immobilized sheets are replaceable and recyclable.
    Type: Grant
    Filed: September 20, 2000
    Date of Patent: April 30, 2002
    Assignee: National Science Council
    Inventor: Wen-Chien Lee