Patents by Inventor Alireza Shams

Alireza Shams 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).

  • Sensor for rail switch position
    Patent number: 6899303
    Abstract: Method and apparatus for detection of the presence of a train wheel on a train track that overcomes problems associated with previously known detectors. The invention includes a method for detecting the presence of a train wheel on a train track.
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: May 31, 2005
    Assignee: Introl Design, Inc.
    Inventor: Alireza Shams
  • Sensor for rail switch position
    Publication number: 20040144896
    Abstract: Method and apparatus for detection of the presence of a train wheel on a train track that overcomes problems associated with previously known detectors. The invention includes a method for detecting the presence of a train wheel on a train track.
    Type: Application
    Filed: November 25, 2003
    Publication date: July 29, 2004
    Inventor: Alireza Shams
  • Sensor for railcar wheels
    Patent number: 6663053
    Abstract: Method and apparatus for detection of the presence of a train wheel on a train track that overcomes problems associated with previously known detectors. The invention includes a method for detecting the presence of a train wheel on a train track.
    Type: Grant
    Filed: August 30, 2002
    Date of Patent: December 16, 2003
    Assignee: Introl Design, Inc.
    Inventor: Alireza Shams