Patents by Inventor Ethan E. Currens

Ethan E. Currens 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).

  • Steel compositions and solution nitriding of stainless steel thereof
    Patent number: 11021782
    Abstract: The disclosure provides methods of making iron-based alloys, as well as resulting alloys. An iron-based alloy containing a small amount of nickel (e.g., 0.5 to 2.0 wt %) is annealed and machined. The alloy is sufficiently ductile to reduce the likelihood of cracking, while not sufficiently high to result in a hardened alloy. After the alloy is shaped, the alloy is hardened by nitriding.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: June 1, 2021
    Assignee: Apple Inc.
    Inventors: Hoishun Li, Ethan E. Currens, Weiming Huang, James A. Wright
  • STEEL COMPOSITIONS AND SOLUTION NITRIDING OF STAINLESS STEEL THEREOF
    Publication number: 20180265958
    Abstract: The disclosure provides methods of making iron-based alloys, as well as resulting alloys. An iron-based alloy containing a small amount of nickel (e.g., 0.5 to 2.0 wt %) is annealed and machined. The alloy is sufficiently ductile to reduce the likelihood of cracking, while not sufficiently high to result in a hardened alloy. After the alloy is shaped, the alloy is hardened by nitriding.
    Type: Application
    Filed: March 20, 2018
    Publication date: September 20, 2018
    Inventors: Hoishun Li, Ethan E. Currens, Weiming Huang, James A. Wright