Patents by Inventor S. Mary Ann Dardy

S. Mary Ann Dardy 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).

  • LOW POWER GRADED BASE SiGe HBT LIGHT MODULATOR
    Publication number: 20110215344
    Abstract: A graded base silicon-germanium (SiGe) heterojunction bipolar transistor (HBT)-based electro-optical (EO) modulator includes a graded base HBT and a light beam directed under the graded base HBT and passing through the free carrier plasma within for the purpose of inducing a phase modulation of the light beam.
    Type: Application
    Filed: March 4, 2011
    Publication date: September 8, 2011
    Inventors: Henry D. Dardy, Jong Ru Guo, John F. McDonald, S. Mary Ann Dardy