Patents by Inventor Keith E. Roberts

Keith E. Roberts 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: 7957826
    Abstract: A method for fabricating parts using a photolithography system, includes: performing a search of normalization data for an estimated dose operating point; and using the estimated dose operating point for fabrication of new parts.
    Type: Grant
    Filed: August 21, 2007
    Date of Patent: June 7, 2011
    Assignee: International Business Machines Corporation
    Inventors: Christopher P. Ausschnitt, Richard H. Broberg, David A. Crow, William A. Muth, Keith E. Roberts
  • Publication number: 20090053627
    Abstract: A method for fabricating parts using a photolithography system, includes: performing a search of normalization data for an estimated dose operating point; and using the estimated dose operating point for fabrication of new parts. Other methods are provided.
    Type: Application
    Filed: August 21, 2007
    Publication date: February 26, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Christopher P. Ausschnitt, Richard H. Broberg, David A. Crow, William A. Muth, Keith E. Roberts
  • Patent number: 3969828
    Abstract: An apparatus and method for removing excess coating material from chain link fabric during the manufacture of the fabric. A gang of sprocket members are arranged side-by-side on a shaft for rotation about the shaft axis. Each of the sprocket members includes a plurality of radially outwardly extending teeth having notches formed along the length thereof. Chain link fabric is passed over the gang of sprockets such that the teeth engage through respective openings formed by the wire or other members of the fabric. When the fabric is removed from the sprockets, the notches in the teeth cause intermittent hitching and release of the fabric which vibrates the fabric to remove excess molten coated material from the fabric. The gang of sprockets is arranged intermediate a coating tank and a cooling tank for the chain link fabric such that the coating material is in the molten state when it passes over the sprockets.
    Type: Grant
    Filed: August 23, 1974
    Date of Patent: July 20, 1976
    Inventor: Keith E. Roberts