Patents by Inventor Robert Logie

Robert Logie 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).

  • Patent number: 6353452
    Abstract: In order to make sure that a user does not attempt to build an invalid database query in which tables are incorrectly joined on fields that cannot be joined due to an incompatibility of data types, after the user selects a source data field the incompatible target data fields which cannot be joined with the selected source data field are determined automatically and displayed distinctly differently in a target list box of possible target data field names, such as in a different color.
    Type: Grant
    Filed: October 20, 1998
    Date of Patent: March 5, 2002
    Assignee: International Business Machines Corporation
    Inventors: Seiji Hamada, Robert Logie, Takashi Ogura