Patents by Inventor Chang-Hwa Grace

Chang-Hwa Grace 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: 20090124991
    Abstract: A secondary internal topsheet and leg wrap structure is provided in a disposable absorbent garment such as a diaper or training pants. The leg wrap structure has a base layer, a top layer, and an elastic construction disposed inbetween. The elastic construction includes a plurality of spaced apart elastic elements that are aligned in a generally in generally parallel relation. The leg wrap structure and secondary topsheet provides for the efficient formation of a reservoir and a plurality of fluid dams each capable of capturing a quantity of fluid to minimize the occurrence of fluid leaks from the absorbent article. Methods of forming such absorbent articles are disclosed.
    Type: Application
    Filed: May 8, 2008
    Publication date: May 14, 2009
    Inventors: Patrick King Yu Tsang, Andrew Wright, Ian Walker, Kuo-Shu Edward Chang, Chang-Hwa Grace Ho
  • Publication number: 20080093015
    Abstract: A method of making an elastic composite is provided. The method entails conveying a first web of material along a web plane path. The method also entails applying a first section of a first elastic strand onto the first web and generally transversely to the web plane path and applying a second section of a second elastic strand onto the first web and generally transversely to the web plane path. These applying steps are repeated while performing the conveying step, thereby arranging a plurality of first and second elastic elements on the first web, in generally parallel relation to one another. The resultant composite is suitable for incorporation into a disposable absorbent garment, textile or fabric structure, and the like.
    Type: Application
    Filed: May 9, 2007
    Publication date: April 24, 2008
    Applicant: DSG Technology Holdings Ltd.
    Inventors: Kuo-Shu Chang, Chang-Hwa Grace, Anne Smid, Patrick Tsang, Andrew Wright, William Sayers