Patents by Inventor Po-Hsing Chang

Po-Hsing Chang 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).

  • Construction method of compound asphalt net with flame treatment
    Patent number: 5236276
    Abstract: A method for applying an asphalt layer on a construction surface comprises the steps of placing an asphalt lattice having an admixture of fibrous and particulate matter onto the construction surface, and heating the lattice with a flame so as to melt the asphalt mixture causing it to flow over the surface and fill any depressions and cracks thereon. The asphalt layer thus formed is in intimate contact with the surface and can be used as waterproofing or as a primer layer for further applications of asphalt.
    Type: Grant
    Filed: August 19, 1991
    Date of Patent: August 17, 1993
    Inventors: Chung-Hsiung Chang, Po-Hsing Chang