Patents by Inventor Tsan-Shing LAU

Tsan-Shing LAU 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).

  • Membrane staining dyes containing phosphorescent transition metal polypyridine complexes
    Patent number: 9441003
    Abstract: The present invention is concerned with a staining dye for staining a biological cell, comprising dye molecules with a positively charged polar head group for attraction to cell membrane of the cell and for refraining the dye molecules from entering the cytoplasm, and one or more hydrophobic groups for interaction with phospholipids of the cell membrane. The dye molecules are phosphorescent transition metal polypyridine complexes having a metal center and ligands which are non-organic fluorophores.
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: September 13, 2016
    Assignee: CITY UNIVERSITY OF HONG KONG
    Inventors: Kam-Wing Kenneth Lo, Yin Zhang, Tsan-Shing Lau, Lijuan Hua
  • MEMBRANE STAINING DYES CONTAINING PHOSPHORESCENT TRANSITION METAL POLYPYRIDINE COMPLEXES
    Publication number: 20150293108
    Abstract: The present invention is concerned with a staining dye for staining a biological cell, comprising dye molecules with a positively charged polar head group for attraction to cell membrane of the cell and for refraining the dye molecules from entering the cytoplasm, and one or more hydrophobic groups for interaction with phospholipids of the cell membrane. The dye molecules are phosphorescent transition metal polypyridine complexes having a metal center and ligands which are non-organic fluorophores.
    Type: Application
    Filed: April 11, 2014
    Publication date: October 15, 2015
    Applicant: City University of Hong Kong
    Inventors: Kam-Wing Kenneth LO, Yin ZHANG, Tsan-Shing LAU, Lijuan HUA