Patents by Inventor Feng-Huei Lin

Feng-Huei Lin 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).

  • Dental retrograde-filling material containing cobalt and process
    Publication number: 20030209167
    Abstract: A dental retrograde-filling material process, comprising the steps of: taking 3:1 mole ratio of a calcium oxide and a silicon dioxide mixes a 1˜5 w.t. % cobalt oxide at 1200˜1800 degree Celsius temperature to get a A-product including a tricalcium silicate, a dicalcium silicate and a containing cobalt composition; taking 3:1 mole ratio of a calcium oxide and an aluminum oxide at 1200˜1800 degree Celsius temperature reacts a B-product including a tricalcium aluminate; taking 4:1:1 mole ratio of a calcium oxide, an aluminum oxide and a ferric oxide at 1200˜1800 degree Celsius temperature reacts a C-product including a calcium alminoferrite; and mixing the A-product, B-product and C-product are the retrograde-filling material. The dental retrograde-filling material mixes of taking 8:1:1 mole ratio of said tricalcium silicate, dicalcium silicate and containing cobalt composition, tricalcium aluminate and calcium alminoferrite.
    Type: Application
    Filed: July 18, 2002
    Publication date: November 13, 2003
    Inventors: Feng-Huei Lin, Chun-Pin Lin, Wen-Hsi Wang
  • &agr;-TCP/HAP biphasic cement and its preparing process
    Patent number: 6338752
    Abstract: A biphasic cement of &agr;-TCP/HAP is primarily composed of 30-60 wt % &agr;-tricalcium phosphate (Ca3(PO4)2, &agr;-TCP) and 40-70 wt % of hydroxyapatite (Ca10(PO4)6(OH)2, HAP). The biphasic cement of &agr;-TCP/HAP of the present invention is superior since it can set rapidly while soaking in a water solution. The present invention also provides a process for preparing the biphasic cement of &agr;-TCP/HAP, in which the composition of the biphasic cement of &agr;-TCP/HAP can be controlled.
    Type: Grant
    Filed: April 20, 2000
    Date of Patent: January 15, 2002
    Assignee: Purzer Pharmaceutical Co., Ltd.
    Inventors: Feng-Huei Lin, Chun-Jen Liao
  • Bone substitute composition and process of preparation thereof
    Patent number: 6224629
    Abstract: A bone substitute comprises gelatin powder, water, tricalcium phosphate (TCP) powder, and glutaraldehyde. The bone substitute in the present invention, using tricalcium phosphate powder as the major implant ingredient, gelatin powder as glue, and glutaraldehyde as cross-linking agent, can reduce the degradation rate of the bone substitute in the biological body. The present invention also includes the manufacturing procedure of the bone substitute.
    Type: Grant
    Filed: December 9, 1998
    Date of Patent: May 1, 2001
    Assignee: Purzer Pharmaceuticals Co. Ltd.
    Inventors: Feng-Huei Lin, Chun-Hsu Yao
  • Process for preparing porous bioceramic materials
    Patent number: 6136030
    Abstract: A process for preparing porous bioceramic materials includes the following steps: (a) using the cancellous bone of animals, (b) removing organic substances in the cancellous bone by thermal processing to obtain de-organic cancellous bone, (c) soaking the de-organic cancellous bone in a solution of phosphate salts, and (d) obtaining porous bioceramic materials by sintering up to 900.degree. C. or higher after dehydration. The porous bioceramic materials of the present invention are suitable for use as filling materials for bone defect.
    Type: Grant
    Filed: January 12, 1999
    Date of Patent: October 24, 2000
    Assignee: Purzer Pharmaceutical Co., Ltd.
    Inventors: Feng-Huei Lin, Chun-Jen Liao