Patents by Inventor Irene Greif

Irene Greif 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).

  • Spreadsheet program which implements alternative range references
    Patent number: 5371675
    Abstract: A computer programmed to represent a spreadsheet that can be displayed to a user, the spreadsheet including an array of cells for storing user entered data, the programmed computer including programmed logic for designating a group of one or more cells within the spreadsheet, the group of one or more cells containing a first set of user entered data; programmed logic for creating an alternative for the group of one or more cells, said alternative containing a second set of user entered data that is different from the first set of user entered data; and programmed logic for enabling the user to select between the group of one or more cells and the alternative as the source of the data that is used in a corresponding group of cells within the spreadsheet.
    Type: Grant
    Filed: June 3, 1992
    Date of Patent: December 6, 1994
    Assignee: Lotus Development Corporation
    Inventors: Irene Greif, Richard A. Landsman, Robert Balaban