Patents by Inventor Yuanhua Miao

Yuanhua Miao 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).

  • POLYMER MICRO-NEEDLE ARRAY CHIP, PREPARATION PROCESS AND USE THEREOF
    Publication number: 20150030642
    Abstract: The invention discloses a polymer micro-needle array chip, comprising a substrate and a micro-needle array standing thereon; the material for preparing the micro-needle array is a polyacrylamides polymer, with the molecular weight of 1.0×104-2.0×105, the Vickers hardness of 150-600 HV, and the impact strength of 5-30 J/m. The polymer micro-needle array chip has a high mechanical strength and a sharp needle tip, and it can easily dissolve or swell on contact with a water-containing environment, which helps the drug to be released slowly in the skin.
    Type: Application
    Filed: May 25, 2012
    Publication date: January 29, 2015
    Applicant: Technical Institute of Physics and Chemistry of the Chinese Academy of Sciences
    Inventors: Feipeng Wu, Yuanhua Miao