Patents by Inventor Dewitt Dortch

Dewitt Dortch 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).

  • COATED CUTTING TOOLS HAVING A PLATINUM GROUP METAL CONCENTRATION GRADIENT AND RELATED PROCESSES
    Publication number: 20130273382
    Abstract: The present disclosure is directed to cutting tools. The disclosed cutting tools may have a wear resistant coating on a substrate. The substrate may have hard particles cemented in a binder phase. The binder may have a near-surface concentration gradient of at least one platinum group element and/or rhenium. Processes for producing cutting tools are also disclosed.
    Type: Application
    Filed: April 17, 2013
    Publication date: October 17, 2013
    Applicant: TDY INDUSTRIES, LLC
    Inventors: Craig W. Morton, Dewitt Dortch, John Bost, David J. Wills
  • Coated cutting tools having a platinum group metal concentration gradient and related processes
    Patent number: 8440314
    Abstract: The present disclosure is directed to cutting tools. The disclosed cutting tools may have a wear resistant coating on a substrate. The substrate may have hard particles cemented in a binder phase. The binder may have a near-surface concentration gradient of at least one platinum group element and/or rhenium. Processes for producing cutting tools are also disclosed.
    Type: Grant
    Filed: August 25, 2009
    Date of Patent: May 14, 2013
    Assignee: TDY Industries, LLC
    Inventors: Craig W. Morton, Dewitt Dortch, John Bost, David J. Wills
  • Coated Cutting Tools Having a Platinum Group Metal Concentration Gradient and Related Processes
    Publication number: 20110052931
    Abstract: The present disclosure is directed to cutting tools. The disclosed cutting tools may have a wear resistant coating on a substrate. The substrate may have hard particles cemented in a binder phase. The binder may have a near-surface concentration gradient of at least one platinum group element and/or rhenium. Processes for producing cutting tools are also disclosed.
    Type: Application
    Filed: August 25, 2009
    Publication date: March 3, 2011
    Applicant: TDY Industries, Inc.
    Inventors: Craig W. Morton, Dewitt Dortch, John Bost, David J. Wills