Patents by Inventor Yumei Wu

Yumei Wu 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).

  • Crystalline form of 2-((1?-n-hexyloxy) ethyl)-2-divinyl-pyropheophorbide-a and method for preparing thereof
    Patent number: 9260444
    Abstract: The present invention provides a crystalline form of HPPH (2-((1?-n-hexyloxy)ethyl)-2-divinyl-pyropheophorbide-a): The crystalline form can be characterized by an X-ray powder diffraction (XRD) pattern and differential scanning calorimeter (DSC) pattern. The present invention also provides a method for preparing the crystalline form of HPPH.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: February 16, 2016
    Assignee: Zhejiang Hisun Pharmaceutical Co., Ltd.
    Inventors: Zhenliang Chen, Fei Zheng, Yumei Wu, Tianmin Zhu, Hua Bai
  • CRYSTALLINE FORM OF 2-((1'-N-HEXYLOXY) ETHYL)-2-DIVINYL-PYROPHEOPHORBIDE-A AND METHOD FOR PREPARING THEREOF
    Publication number: 20150099873
    Abstract: The present invention provides a crystalline form of HPPH (2-((1?-n-hexyloxy)ethyl)-2-divinyl-pyropheophorbide-a). The crystalline form can be characterized by an X-ray powder diffraction (XRD) pattern and differential scanning calorimeter (DSC) pattern. The present invention also provides a method for preparing the crystalline form of HPPH.
    Type: Application
    Filed: February 7, 2013
    Publication date: April 9, 2015
    Inventors: Zhenliang Chen, Fei Zheng, Yumei Wu, Tianmin Zhu, Hua Bai