Patents by Inventor Mahadevan P. Subramanian

Mahadevan P. Subramanian 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).

  • System, method and article of manufacture for a gateway system architecture with system administration information accessible from a browser
    Patent number: 6304915
    Abstract: Secure transmission of data is provided between a plurality of computer systems over a public communication system, such as the Internet. Secure transmission of data is provided from a customer computer system to a merchant computer system, and for the further secure transmission of payment information from the merchant computer system to a payment gateway computer system. The payment gateway system receives encrypted payment requests from merchants, as HTTP POST messages via the Internet. The gateway then unwraps and decrypts the requests, authenticates digital signatures of the requests based on certificates, supports transaction types and card types as required by a financial institution, and accepts concurrent VPOS transactions from each of the merchant servers. Then, the gateway converts transaction data to host-specific formats and forwards the mapped requests to the host processor using the existing financial network.
    Type: Grant
    Filed: May 17, 1999
    Date of Patent: October 16, 2001
    Assignee: Hewlett-Packard Company
    Inventors: Trong Nguyen, Mahadevan P. Subramanian, Daniel R. Haller
  • System, method and article of manufacture for a payment gateway system architecture for processing encrypted payment transactions utilizing a multichannel, extensible, flexible architecture
    Patent number: 5978840
    Abstract: Secure transmission of data is provided between a plurality of computer systems over a public communication system, such as the Internet. Secure transmission of data is provided from a customer computer system to a merchant computer system, and for the further secure transmission of payment information from the merchant computer system to a payment gateway computer system. The payment gateway system receives encrypted payment requests from merchants, as HTTP POST messages via the Internet. The gateway then unwraps and decrypts the requests, authenticates digital signatures of the requests based on certificates, supports transaction types and card types as required by a financial institution, and accepts concurrent VPOS transactions from each of the merchant servers. Then, the gateway converts transaction data to host-specific formats and forwards the mapped requests to the host processor using the existing financial network.
    Type: Grant
    Filed: September 26, 1996
    Date of Patent: November 2, 1999
    Assignee: VeriFone, Inc.
    Inventors: Trong Nguyen, Daniel R. Haller, Mahadevan P. Subramanian
  • System, method and article of manufacture for a gateway system architecture with system administration information accessible from a browser
    Patent number: 5931917
    Abstract: Secure transmission of data is provided between a plurality of computer systems over a public communication system, such as the Internet. Secure transmission of data is provided from a customer computer system to a merchant computer system, and for the further secure transmission of payment information from the merchant computer system to a payment gateway computer system. The payment gateway system receives encrypted payment requests from merchants, as HTTP POST messages via the Internet. The gateway then unwraps and decrypts the requests, authenticates digital signatures of the requests based on certificates, supports transaction types and card types as required by a financial institution, and accepts concurrent VPOS transactions from each of the merchant servers. Then, the gateway converts transaction data to host-specific formats and forwards the mapped requests to the host processor using the existing financial network.
    Type: Grant
    Filed: September 26, 1996
    Date of Patent: August 3, 1999
    Assignee: VeriFone, Inc.
    Inventors: Trong Nguyen, Mahadevan P. Subramanian, Daniel R. Haller