Patents by Inventor Katherine Anne Yanushefski

Katherine Anne Yanushefski 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).

  • Plastic packaged optoelectronic device
    Patent number: 6517258
    Abstract: The invention is an optoelectronic device including a semiconductor photodetector enclosed within a plastic housing. The housing includes a wall with an aperture therein for receiving optical signals. The photodetector is mounted to a flexible film which is, in turn, mounted to the housing so that the photodetector is aligned with the aperture. The device may further include a receptacle mounted to the wall for receiving an optical fiber aligned with the aperture and the photodetector.
    Type: Grant
    Filed: June 25, 1999
    Date of Patent: February 11, 2003
    Assignee: Agere Systems Inc.
    Inventors: Joseph P. Keska, Steven L. Moyer, Mary J. Nadeau, Steven P. O'Neill, John William Osenbach, Duane S. Stackhouse, Katherine Anne Yanushefski
  • Dual laser with thermoelectric cooling
    Patent number: 5920583
    Abstract: A laser module uses series connected thermoelectric coolers to maintain lasers at the proper operating temperature. A variable resistance associated with the thermoelectric cooler is adjusted to maintain the current through the cooler at the proper value.
    Type: Grant
    Filed: February 22, 1994
    Date of Patent: July 6, 1999
    Assignee: Lucent Technologies Inc.
    Inventors: Chan-Chih David Chen, Jean-Marc Pierre Delavaux, Stephen Walter Granlund, Sun-Yuan Huang, Khanh Cong Nguyen, Katherine Anne Yanushefski