Patents by Inventor Christian Maria Anton Heller

Christian Maria Anton Heller 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).

  • Organic electroluminescent devices and method for improving energy efficiency and optical stability thereof
    Patent number: 6727660
    Abstract: An organic electroluminescent device (“OELD”) has a controllable brightness, an improved energy efficiency, and stable optical output at low brightness. The OELD is activated with a series of voltage pulses, each of which has a maximum voltage value that corresponds to the maximum power efficiency when the OELD is activated. The frequency of the pulses, or the duty cycle, or both are chosen to provide the desired average brightness.
    Type: Grant
    Filed: March 27, 2003
    Date of Patent: April 27, 2004
    Assignee: General Electric Company
    Inventor: Christian Maria Anton Heller
  • Articles having raised features and methods for making the same
    Publication number: 20040051444
    Abstract: An article has a plurality of raised features on at least one of its surfaces. The raised features have a form of ridges or islands. The article is made by conducting a material through the space between two solid surfaces, at least one of which has a negative image of the pattern of the raised features. Such an article serves as a substrate upon which a matrix of individually addressable light-emitting devices are formed.
    Type: Application
    Filed: September 17, 2002
    Publication date: March 18, 2004
    Applicant: General Electric Company
    Inventors: Marc Schaepkens, Joseph John Shiang, Anil Raj Duggal, Christian Maria Anton Heller, Donald Franklin Foust
  • Series connected OLED structure and fabrication method
    Publication number: 20040021425
    Abstract: A light emitting device comprises a plurality of organic light emitting diode (OLED) modules. The OLED modules are arranged into a series group where the individual OLED modules are electrically connected in series. The device is configured to be coupled to a power supply. A display is also provided. The display includes a plurality of OLED modules arranged to depict a shape selected from the group consisting of at least one letter, at least one number, at least one image, and a combination thereof.
    Type: Application
    Filed: August 5, 2002
    Publication date: February 5, 2004
    Inventors: Donald Franklin Foust, Ernest Wayne Balch, Anil Raj Duggal, Christian Maria Anton Heller, Renato Guida, William Francis Nealon, Tami Janene Faircloth