Patents by Inventor Eugene A. Callan

Eugene A. Callan 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).

  • Online transaction processing system for bond trading
    Patent number: 5809483
    Abstract: A system for monitoring information about debt securities and reporting trades in the debt securities market. The system includes user stations and a host processor. Users input data requests and trade information to the user stations which transmit the requests and trade information to the host processor. The host processor processes information about the trades and requests for information using databases which contain various types of information about the debt securities and users. The host processor transmits processed trade information and requested information to the user stations which present the information to the users.
    Type: Grant
    Filed: November 14, 1997
    Date of Patent: September 15, 1998
    Inventors: S. William Broka, Michael P. Walsh, Deborah M. Clowney, Walter E. Stewart, Daniel R. DiSisto, Beth E. Weimer, Eugene A. Callan, Robert N. Reiss, Mark D. DuMont