Patents by Inventor M. Craig Marshall

M. Craig Marshall 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: 8704134
    Abstract: The present application relates to iron based glass forming alloys and their manufacture in powder, cored wire and stick electrode form to produce feedstock for a wide variety of weld overlay hardfacing application techniques. The alloys when welded form structures which are extremely hard and correspondingly extremely wear resistant. The novel approach of these alloys allow the replacement of conventional high hardness and wear resistant hardfacing alloys which are often composite materials made up of a binder and hard particles such as carbides, borides, borocarbides, nitrides, etc.
    Type: Grant
    Filed: July 18, 2006
    Date of Patent: April 22, 2014
    Assignee: The NanoSteel Company, Inc.
    Inventors: Daniel James Branagan, M. Craig Marshall, Brian Meacham
  • Patent number: 7935198
    Abstract: The present invention relates to the addition of niobium to iron based glass forming alloys. More particularly, the present invention is related to changing the nature of crystallization resulting in glass formation that may remain stable at much higher temperatures, increasing the glass forming ability and increasing devitrified hardness of the nanocomposite structure.
    Type: Grant
    Filed: August 22, 2007
    Date of Patent: May 3, 2011
    Assignee: The NanoSteel Company, Inc.
    Inventors: Daniel James Branagan, M. Craig Marshall, Brian Meacham
  • Patent number: 7553382
    Abstract: The present invention relates to the addition of niobium to iron based glass forming alloys and iron based Cr—Mo—W containing glasses. More particularly, the present invention is related to changing the nature of crystallization resulting in glass formation that may remain stable at much higher temperatures, increasing the glass forming ability and increasing devitrified hardness of the nanocomposite structure.
    Type: Grant
    Filed: February 11, 2005
    Date of Patent: June 30, 2009
    Assignee: The NanoSteel Company, Inc.
    Inventors: Daniel J. Branagan, M. Craig Marshall, Brian Meacham