Patents by Inventor Li Fu Chen

Li Fu Chen 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).

  • Heat dissipating frame structure and fabricating method thereof
    Patent number: 10690333
    Abstract: Disclosed are a heat dissipating frame structure having higher heat dissipation efficiency than the prior arts and a fabricating method thereof. Namely, the heat dissipating frame structure comprises a metal plate assembly, a part of which contacting with a heating element, and a plastic composition combined with the metal plate assembly to through the metal plate assembly receive the heat generated from the heating element.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: June 23, 2020
    Assignee: MENTOR TECHNOLOGIES CO., LTD.
    Inventor: Li Fu Chen
  • HEAT DISSIPATING FRAME STRUCTURE AND FABRICATING METHOD THEREOF
    Publication number: 20170059146
    Abstract: Disclosed are a heat dissipating frame structure having higher heat dissipation efficiency than the prior arts and a fabricating method thereof. Namely, the heat dissipating frame structure comprises a metal plate assembly, a part of which contacting with a heating element, and a plastic composition combined with the metal plate assembly to through the metal plate assembly receive the heat generated from the heating element.
    Type: Application
    Filed: July 13, 2016
    Publication date: March 2, 2017
    Inventor: Li Fu CHEN
  • Chromatographic separation of organic non-sugars, colloidal matterials and inorganic-organic complexes from juices, liquors, syrups and/or molasses
    Patent number: 5382294
    Abstract: The object of the present invention is to chromatographically separate the higher and lower molecular weight components of juices, liquors, syrups and/or molasses (e.g., inorganic-organic complexes and organic non-sugars), thereby permitting the lower molecular weight sugar and soluble salt-containing fraction(s) to be further processed into natural sweetener products.
    Type: Grant
    Filed: July 29, 1993
    Date of Patent: January 17, 1995
    Inventors: Nicholas T. Rimedio, Li Fu Chen
  • High strength cellulose fiber or film
    Patent number: 5290349
    Abstract: The present invention relates to the production of high tensile strength, solvent-spun cellulose fiber which is stable in alkaline solutions. More particularly, the invention relates to a process in which cellulose is solubilized in a zinc chloride solution then extruded into a coagulation medium in which the cellulose fibers form. The fibers are removed from the coagulation medium, treated to remove the coagulation medium, stretched and recrystallized in water, thus forming the high tensile strength, solvent-spun cellulose fibers.
    Type: Grant
    Filed: July 22, 1991
    Date of Patent: March 1, 1994
    Assignee: Purdue Research Foundation, Division of Sponsored Programs
    Inventor: Li Fu Chen
  • Production of high strength cellulose fiber using zinc chloride, organic solvents and aqueous solution
    Patent number: 4999149
    Abstract: The present invention relates to the production of high tensile strength, solvent-spun cellulose fiber which is stable in alkaline solutions. More particularly, the invention relates to a process in which cellulose is solubilized in a zinc chloride solution then extruded into a coagulation medium in which the cellulose fibers form. The fibers are removed from the coagulation medium, treated to remove the coagulation medium, stretched and recrystallized in water, thus forming the high tensile strength, solvent-spun cellulose fibers.
    Type: Grant
    Filed: October 21, 1988
    Date of Patent: March 12, 1991
    Assignee: Purdue Research Foundation, Division of Sponsored Programs
    Inventor: Li Fu Chen
  • Production of ethanol by yeast using xylulose
    Patent number: 4490468
    Abstract: Ethanol is produced by the fermentation of xylulose using yeast under fermentative conditions.
    Type: Grant
    Filed: April 23, 1980
    Date of Patent: December 25, 1984
    Assignee: Purdue Research Foundation
    Inventors: Cheng Shung Gong, Li Fu Chen, Michael C. Flickinger, George T. Tsao
  • Quantitative hydrolysis of cellulose to glucose using zinc chloride
    Patent number: 4452640
    Abstract: Cellulose may be quantitatively hydrolyzed to glucose without formation of degradation products by pretreatment of cellulose with zinc chloride to liquify the cellulose and thereafter hydrolyzing the cellulose with acid.
    Type: Grant
    Filed: May 11, 1982
    Date of Patent: June 5, 1984
    Assignee: Purdue Research Foundation
    Inventors: Li Fu Chen, Che-Ming Yang
  • Porous cellulose beads
    Patent number: 4090022
    Abstract: Porous cellulose beads are prepared by distributing droplets of a solvent mixture containing a cellulose derivative into a precipitating solution to form porous beads which are then washed and hydrolyzed to form porous cellulose beads. The porous cellulose beads, which may be cross-linked, if desired, by suitable treatment, are useful carriers to which enzymes can be immobilized. The beads may also be used for the separation of enzymes, proteins, nucleic acids and the like, or to remove metal ions from dilute mining solutions.
    Type: Grant
    Filed: March 21, 1977
    Date of Patent: May 16, 1978
    Assignee: Purdue Research Foundation
    Inventors: George T. Tsao, Li Fu Chen
  • Porous cellulose beads and the immobilization of enzymes therewith
    Patent number: 4063017
    Abstract: Porous cellulose beads are prepared by distributing droplets of a solvent mixture containing a cellulose derivative into an aqueous solution to form porous beads which are then washed and hydrolyzed to form porous cellulose beads. The porous cellulose beads, which may be cross-linked, if desired, by suitable treatment, are useful carriers to which enzymes can be immobilized.
    Type: Grant
    Filed: April 22, 1976
    Date of Patent: December 13, 1977
    Assignee: Purdue Research Foundation
    Inventors: George T. Tsao, Li Fu Chen