Patents by Inventor J. Stephen Griffith

J. Stephen Griffith 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 of making gate array masks
    Patent number: 5018074
    Abstract: A method for making gate array masks in which a mask set for an existing set of gate array cells are converted to follow new design rules requiring a non-uniform transformation of circuit components is carried out by manually converting a defining set of circuit components from a first set of grid points to a second set, the second set being specified by the new design rules, and thereafter automatically converting grid points in the remaining gate array cells to the new system.
    Type: Grant
    Filed: November 4, 1988
    Date of Patent: May 21, 1991
    Assignee: United Technologies Corporation
    Inventors: J. Stephen Griffith, Patricia L. Roberts