Patents by Inventor Randolph P. Thummel

Randolph P. Thummel 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).

  • Transition metal complexes from solid state synthesis
    Patent number: 7202362
    Abstract: Methods and compositions related to the synthesis of photosensitizers of titanium dioxide performed in situ, stepwise, in the solid state, and directly on the surface of the titanium dioxide semiconductor material. The method is generally accomplished by first absorbing an anchor ligand onto the titanium dioxide semiconductor material, then adding an appropriate transition metal, and finally adding one or more secondary ligands to complete the synthesis of the transition metal complex or sensitizer.
    Type: Grant
    Filed: March 8, 2004
    Date of Patent: April 10, 2007
    Assignee: University of Houston
    Inventors: Randolph P. Thummel, Yi-Zhen Hu
  • Transition metal complexes from solid state synthesis
    Publication number: 20040225122
    Abstract: Methods and compositions related to the synthesis of photosensitizers of titanium dioxide performed in situ, stepwise, in the solid state, and directly on the surface of the titanium dioxide semiconductor material. The method is generally accomplished by first absorbing an anchor ligand onto the titanium dioxide semiconductor material, then adding an appropriate transition metal, and finally adding one or more secondary ligands to complete the synthesis of the transition metal complex or sensitizer.
    Type: Application
    Filed: March 8, 2004
    Publication date: November 11, 2004
    Applicant: University of Houston
    Inventors: Randolph P. Thummel, Yi-Zhen Hu