Patents by Inventor Jian-Chyi Chen

Jian-Chyi 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).

  • Chitosans
    Patent number: 6890913
    Abstract: A chitosan having a weight average molecular weight of 50,000-140,000 g/mole and a degree of deacetylation of 85-95%. Also disclosed are a method of preparing a chitosan from a fungus, and a method of using a chitosan for treating breast or cervical cancer.
    Type: Grant
    Filed: February 26, 2003
    Date of Patent: May 10, 2005
    Assignee: Food Industry Research and Development Institute
    Inventors: Hing-Yuen Chan, Mei-Huei Chen, Su-Hui Chuang, Hsueh-O Chang, Shu-Wan Wang, Jian-Chyi Chen, Shiaw-Min Hwang, Gwo-Fang Yuan
  • Novel chitosans
    Publication number: 20040167323
    Abstract: A chitosan having a weight average molecular weight of 50,000-140,000 g/mole and a degree of deacetylation of 85-95%. Also disclosed are a method of preparing a chitosan from a fungus, and a method of using a chitosan for treating breast or cervical cancer.
    Type: Application
    Filed: February 26, 2003
    Publication date: August 26, 2004
    Inventors: Hing-Yuen Chan, Mei-Huei Chen, Su-Hui Chuang, Hsueh-O Chang, Shu-Wan Wang, Jian-Chyi Chen, Shiaw-Min Hwang, Gwo-Fang Yuan
  • Use of chitinous materials for inhibiting cellular nitric oxide production
    Patent number: 6653294
    Abstract: The invention relates to a method of reducing nitric oxide production by a cell in vitro or in a mammal by a cell by contacting the cell with chitosan or its derivatives in an amount effective to reduce nitric oxide production in the cell.
    Type: Grant
    Filed: December 8, 2000
    Date of Patent: November 25, 2003
    Assignee: Food Industry Research & Development Institute
    Inventors: Shiaw-Min Hwang, Chiung-Yun Chen, Shan-Shan Chen, Jian-Chyi Chen
  • Isolate of Antrodia camphorata, process for producing a culture of the same and product obtained thereby
    Patent number: 6395271
    Abstract: The present invention relates a process for culturing isolates of Antrodia camphorata to provide a product useful in medical and nourishment fields. The present invention also relates to a novel isolate of Antrodia camphorata capable of growing in a suitable artificial medium, while exhibiting desired pharmacological activities, in particular anti-tumor activity. The utilization of potato dextrose broth and the synthetic medium containing fructose as major carbon source leads to a significant increase in the pharmacological activity of the cultures of A. camphorate.
    Type: Grant
    Filed: October 19, 2000
    Date of Patent: May 28, 2002
    Assignee: Council of Agriculture, Executive Yuan
    Inventors: Ren-Chang Huang, Jian-Chyi Chen, Bor-Cheh Wang
  • Isolate of Antrodia camphorata process for producing a culture of the same and product obtained thereby
    Patent number: 6391615
    Abstract: The present invention relates a process for culturing isolates of Antrodia camphorata to provide a product useful in medical and nourishment fields. The present invention also relates to a novel isolate of Antrodia camphorata capable of growing in a suitable artificial medium, while exhibiting desired pharmacological activities, in particular anti-tumor activity. The utilization of potato dextrose broth and the synthetic medium containing fructose as major carbon source leads to a significant increase in the pharmacological activity of the cultures of A. camphorata.
    Type: Grant
    Filed: May 8, 2000
    Date of Patent: May 21, 2002
    Assignee: Council of Agriculture, Executive Yuan
    Inventors: Ren-Chang Huang, Jian-Chyi Chen, Bor-Cheh Wang
  • Isolate of antrodia camphorata, process for producing a culture of the same and product obtained thereby
    Patent number: 6355475
    Abstract: The present invention relates a process for culturing isolates of Antrodia camphorata to provide a product useful in medical and nourishment fields. The present invention also relates to a novel isolate of Antrodia camphorata capable of growing in a suitable artificial medium, while exhibiting desired pharmacological activities, in particular anti-tumor activity. The utilization of potato dextrose broth and the synthetic medium containing fructose as major carbon source leads to a significant increase in the pharmacological activity of the cultures of A. camphorata.
    Type: Grant
    Filed: October 19, 2000
    Date of Patent: March 12, 2002
    Assignee: Council of Agriculture, Executive Yuan
    Inventors: Ren-Chang Huang, Jian-Chyi Chen, Bor-Cheh Wang
  • Use of chitinous materials for inhibiting cellular nitric oxide production
    Publication number: 20010036934
    Abstract: The invention relates to a method of reducing nitric oxide production by a cell in vitro or in a mammal by a cell by contacting the cell with chitosan or its derivatives in an amount effective to reduce nitric oxide production in the cell.
    Type: Application
    Filed: December 8, 2000
    Publication date: November 1, 2001
    Inventors: Shiaw-Min Hwang, Chiung-Yun Chen, Shan-Shan Chen, Jian-Chyi Chen