Patents by Inventor Hsing-Lieh Chuang

Hsing-Lieh Chuang 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: 20210023825
    Abstract: A decorative film having: a pattern display layer formed by a transparent heat-resistant layer and a printed layer on a surface of the transparent heat-resistant layer to provide a first pattern, and the pattern display layer having a first side and a second side opposite to the first side; an extrusion-embossed microstructure layer formed on a surface of the second side of the pattern display layer and having a microstructure to provide a second pattern; and a reflective layer overlying the microstructure; when the decorative film is in use, an observer can see a display pattern composed of the first pattern and the second pattern on the first side of the pattern display layer. In addition, the present invention also proposes a packaging material using the decorative film and a label sticker using the decorative film.
    Type: Application
    Filed: October 16, 2019
    Publication date: January 28, 2021
    Inventor: Hsing-Lieh CHUANG
  • Publication number: 20100188868
    Abstract: A three-layer light guiding structure includes a light-guiding layer having a light-output face with a plurality of patterned points imprinted thereon; a middle light-transmittable layer being located at a bottom of the light-guiding layer opposite to the light-output face; and a reflecting layer being located at a bottom of the middle light-transmittable layer opposite to the light-guiding layer. The three-layer light guiding structure is formed through the coextrusion molding process, so that the light-guiding layer, the middle light-transmittable layer and the reflecting layer are integrally formed and bonded to one another after the molding.
    Type: Application
    Filed: January 26, 2009
    Publication date: July 29, 2010
    Inventors: Hsing-Lieh Chuang, Cheng-Yen Chuang
  • Publication number: 20070001022
    Abstract: A drinking straw is disclosed, comprising a surface layer which is a tubular exterior made of polymer; and an inner layer which is made of the same material with the surface layer and foamed to become the inner wall of the surface layer such that the hollow flow path is formed.
    Type: Application
    Filed: February 8, 2006
    Publication date: January 4, 2007
    Inventors: Hsing-Lieh Chuang, Yao-Te Huang