Patents by Inventor Qidan Ling

Qidan Ling 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).

  • Multi-functional copolymers comprising rare earth metal complexes and devices thereof
    Patent number: 7679082
    Abstract: The invention relates to copolymer complexes of the formula (I): wherein [Ax-[B(C)]y-Dz] denotes a single unit of the copolymer complex that is repeated n times, wherein n is an integer greater than one, and wherein the single unit comprises a conjugated backbone coordinated to a complex (C) comprising rare earth metal(s); x, y and z are numbers greater than zero such that x=y+z; A is independently selected from a group consisting of: fluorene, carbazole, oxadiazole, triphenylamine or derivatives thereof; B is a functional ligand selected from the group consisting of: benzoic acid, 1,3-diphenylpropane-1,3-dione, 1,10-phenanthroline, 2,2-bipyridine, or derivatives thereof; and D is independently selected from a group consisting of: fluorene, carbazole, oxadiazole, triphenylamine or derivatives thereof.
    Type: Grant
    Filed: November 10, 2005
    Date of Patent: March 16, 2010
    Inventors: Qidan Ling, Wei Huang, En-Tang Kang, Koon Gee Neoh
  • Multi-Functional Copolymers Comprising Rare Earth Metal Complexes and Devices Thereof
    Publication number: 20070290199
    Abstract: The invention relates to copolymer complexes of the formula (I): wherein [Ax-[B(C)]y-Dz] denotes a single unit of the copolymer complex that is repeated n times, wherein n is an integer greater than one, and wherein the single unit comprises a conjugated backbone coordinated to a complex (C) comprising rare earth metal(s); x, y and z are numbers greater than zero such that x=y+z; A is independently selected from a group consisting of: fluorene, carbazole, oxadiazole, triphenylamine or derivatives thereof; B is a functional ligand selected from the group consisting of: benzoic acid, 1,3-diphenylpropane-1,3-dione, 1,10-phenanthroline, 2,2-bipyridine, or derivatives thereof; and D is independently selected from a group consisting of: fluorene, carbazole, oxadiazole, triphenylamine or derivatives thereof.
    Type: Application
    Filed: November 10, 2005
    Publication date: December 20, 2007
    Applicant: National University Of Singapore
    Inventors: Qidan Ling, Wei Huang, En-Tang Kang, Koon Neoh