Patents by Inventor Yuan-Chuan Cheng

Yuan-Chuan Cheng 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).

  • Environment protection coffin
    Patent number: 6640401
    Abstract: An environment protection coffin is constructed to include a coffin body made by folding up a patterned sheet material into shape, which patterned sheet material is formed of an outer shell, an inner shell, and at least one intermediate lining shell sandwiched in between the outer shell and the inner shell.
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: November 4, 2003
    Inventors: Chung-Huang Chen, Yuan-Chuan Cheng
  • Environment protection coffin
    Publication number: 20030093886
    Abstract: An environment protection coffin is constructed to include a coffin body made by folding up a patterned sheet material into shape, which patterned sheet material is formed of an outer shell, an inner shell, and at least one intermediate lining shell sandwiched in between the outer shell and the inner shell.
    Type: Application
    Filed: September 30, 2002
    Publication date: May 22, 2003
    Inventors: Chung-Huang Chen, Yuan-Chuan Cheng