Patents by Inventor Hong-Chang Yan

Hong-Chang Yan 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).

  • Cleaning Cream Containing PVA Particles and Producing Method Thereof
    Publication number: 20180042833
    Abstract: A cleaning cream containing PVA particles has PVA particles being uniformly dispersed in a cleaning cream. Moisture content of the cleaning cream is at the range of 0.1˜23%. The cleaning cream comprises a least a surfactant. The PVA particles has glycerol and PVA in which molecular weight of the PVA is 110,000˜120,000. The PVA particles remain as particle form in the cleaning cream.
    Type: Application
    Filed: August 4, 2017
    Publication date: February 15, 2018
    Inventors: Hong-Chang Yan, You-Hong Lu, Fang-Yun Lin