Patents by Inventor Douglas I. Langfield

Douglas I. Langfield 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).

  • Method and mechanism for the development and implementation of a web-based user interface
    Patent number: 7506045
    Abstract: An apparatus for and method of utilizing an Internet terminal coupled to the world wide web to interface with an existing proprietary data base management system through a customized user interface which permits access to a corresponding application service. Instead of coupling the customized user interface directly to the corresponding application service, all communication between these two elements is via the proprietary data base management system. This technique permits the customized user interface and the corresponding application to be separately and independently developed, because all communication there between is via the predefined access rules of the proprietary data base management system.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: March 17, 2009
    Assignee: Unisys Corporation
    Inventors: Barbara A. Christensen, Douglas I. Langfield, Jo A. Newton, Mary Kay K. Craig
  • Method and apparatus for selecting and/or changing the display resolution of HTML home pages in a web application development environment
    Patent number: 6832237
    Abstract: An apparatus for and method of utilizing an Internet terminal coupled to the world wide web to interface with an existing proprietary data base management system through a user interface which permits access to an application service by presentation of one of a plurality of display pages which differ from one another only in resolution. The use of one of a plurality of nearly identical display pages offers a highly efficient way of optimizing the user interface from one work station to another.
    Type: Grant
    Filed: December 1, 2000
    Date of Patent: December 14, 2004
    Assignee: Unisys Corporation
    Inventors: Barbara A. Christensen, Clare D. Elliott, Douglas I. Langfield