Patents by Inventor Chengfeng Qiu

Chengfeng Qiu 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).

  • Publication number: 20050100658
    Abstract: Organic electronic devices may include an organic electronic component having a first organic layer including guest material(s). One or more liquid compositions may be placed over a substantially solid first organic layer. Each liquid composition can include guest material(s) and liquid medium (media). The liquid medium (media) may interact with the first organic layer to form a solution, dispersion, emulsion, or suspension. Most, if not all, of the guest material(s) can migrate into the organic layer to locally change the electronic or electro-radiative characteristics of a region within the organic layer. A second organic layer may be vapor deposited over at least part of the first organic layer. The second organic layer includes at least one organic material capable of emitting blue light.
    Type: Application
    Filed: July 13, 2004
    Publication date: May 12, 2005
    Inventors: Charles MacPherson, Chengfeng Qiu, Gordana Srdanov, Matthew Stainer, Gang Yu