Patents by Inventor Dipan Dewan

Dipan Dewan 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).

  • Programmable calculation engine
    Patent number: 7415474
    Abstract: A calculation engine processes user-definable formulas to generate calculation results. A calculation engine may use the following types of data structures: table, column, row, and field. A sub table may be embedded within a row. Operations may be performed at various levels, such as at: table, column, and field. A calculation engine may operate on a calculation table having columns, which may each have an ordered list of formulas. Formulas within such an ordered list may be evaluated in the order specified until one of the formulas is successfully evaluated. A hierarchy of formulas may be formed by a column's formula depending on another column or table. A graph of data dependencies may be prepared for determining an order in which operands and operations should be evaluated and performed.
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: August 19, 2008
    Assignee: Microsoft Corporation
    Inventors: Kanchan Mitra, Anna V. Timasheva, Dipan Dewan, Kenneth L. Crocker, Robert E. Corrington, David V. Gunter
  • Programmable calculation engine
    Patent number: 7379935
    Abstract: A calculation engine processes user-definable formulas to generate calculation results. A calculation engine may use the following types of data structures: table, column, row, and field. A sub table may be embedded within a row. Operations may be performed at various levels, such as at: table, column, and field. A calculation engine may operate on a calculation table having columns, which may each have an ordered list of formulas. Formulas within such an ordered list may be evaluated in the order specified until one of the formulas is successfully evaluated. A hierarchy of formulas may be formed by a column's formula depending on another column or table. A graph of data dependencies may be prepared for determining an order in which operands and operations should be evaluated and performed.
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: May 27, 2008
    Assignee: Microsoft Corporation
    Inventors: Kanchan Mitra, Anna V. Timasheva, Dipan Dewan, Kenneth L. Crocker, Robert E. Corrington, David V. Gunter
  • Programmable calculation engine
    Patent number: 7107277
    Abstract: A calculation engine processes user-definable formulas to generate calculation results. A calculation engine may use the following types of data structures: table, column, row, and field. A sub table may be embedded within a row. Operations may be performed at various levels, such as at: table, column, and field. A calculation engine may operate on a calculation table having columns, which may each have an ordered list of formulas. Formulas within such an ordered list may be evaluated in the order specified until one of the formulas is successfully evaluated. A hierarchy of formulas may be formed by a column's formula depending on another column or table. A graph of data dependencies may be prepared for determining an order in which operands and operations should be evaluated and performed.
    Type: Grant
    Filed: December 17, 2002
    Date of Patent: September 12, 2006
    Assignee: Microsoft Corporation
    Inventors: Kanchan Mitra, Anna V. Timasheva, Dipan Dewan, Kenneth L. Crocker, Robert E. Corrington, David V. Gunter