Patents by Inventor John Albert Siefert

John Albert Siefert 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).

  • Stepped design weld joint preparation
    Patent number: 10994361
    Abstract: A weld with a stepped configuration is provided. The stepped configuration may be machined from a substrate to form a weld preparation which may accommodate a stepped weld. The weld with a stepped configuration and a controlled procedure exhibits improved service life and improved damage tolerance. A welded joint with a stepped configuration, a joined component with a stepped configuration, and method of welding a stepped configuration are also provided.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: May 4, 2021
    Assignee: Electric Power Research Institute, Inc.
    Inventors: John Albert Siefert, Jonathan David Parker
  • COBALT-FREE, GALLING AND WEAR RESISTANT AUSTENITIC STAINLESS STEEL HARD-FACING ALLOY
    Publication number: 20190071759
    Abstract: A strain-hardenable stainless steel alloy includes hard secondary phases dispersed in an austenitic primary phase, the alloy including 0.3-0.6% nitrogen by weight.
    Type: Application
    Filed: July 26, 2018
    Publication date: March 7, 2019
    Inventors: Ryan Thomas Smith, Tapasvi Lolla, Sudarsanam Suresh Babu, David Wayne Gandy, John Albert Siefert, Gregory J. Frederick, Lou Lherbier, David Novotnak
  • Cobalt-free, galling and wear resistant austenitic stainless steel hard-facing alloy
    Patent number: 10094010
    Abstract: A strain-hardenable stainless steel alloy includes hard secondary phases dispersed in an austenitic primary phase, the alloy including 0.3-0.6% nitrogen by weight.
    Type: Grant
    Filed: June 18, 2015
    Date of Patent: October 9, 2018
    Assignee: THE OHIO STATE UNIVERSITY
    Inventors: Ryan Thomas Smith, Tapasvi Lolla, Sudarsanam Suresh Babu, David Wayne Gandy, John Albert Siefert, Gregory J. Frederick, Lou Lherbier, David Novotnak
  • STEPPED DESIGN WELD JOINT PREPARATION
    Publication number: 20170008117
    Abstract: A weld with a stepped configuration is provided. The stepped configuration may be machined from a substrate to form a weld preparation which may accommodate a stepped weld. The weld with a stepped configuration and a controlled procedure exhibits improved service life and improved damage tolerance. A welded joint with a stepped configuration, a joined component with a stepped configuration, and method of welding a stepped configuration are also provided.
    Type: Application
    Filed: January 26, 2015
    Publication date: January 12, 2017
    Inventors: John Albert SIEFERT, Jonathan David PARKER
  • COBALT-FREE, GALLING AND WEAR RESISTANT AUSTENITIC STAINLESS STEEL HARD-FACING ALLOY
    Publication number: 20150368766
    Abstract: A strain-hardenable stainless steel alloy includes hard secondary phases dispersed in an austenitic primary phase, the alloy including 0.3-0.6% nitrogen by weight.
    Type: Application
    Filed: June 18, 2015
    Publication date: December 24, 2015
    Inventors: Ryan Thomas Smith, Tapasvi Lolla, Sudarsanam Suresh Babu, David Wayne Gandy, John Albert Siefert, Gregory J. Frederick, Lou Lherbier, David Novotnak