Patents by Inventor Surinder Sian

Surinder Sian 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).

  • Add/drop multiplexer
    Patent number: 6449072
    Abstract: A number of add/drop multiplexers having passive optical components for wavelength division multiplexing are described. These add/drop multiplexers are particularly adapted for use in branching units of networks to allow signals passing along fibers of a main trunk between terminal stations to be dropped to and added from a spur station, the design of the add/drop multiplexers allowing a reduced number of spur fibers as signals are routed between trunk fibers at spur fibers according to the carrier wavelength.
    Type: Grant
    Filed: July 26, 1999
    Date of Patent: September 10, 2002
    Assignee: Alcatel
    Inventors: Surinder Sian, Steve Penticost, Christina Long