Patents by Inventor Les A. Yocum

Les A. Yocum 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).

  • Publication number: 20220307119
    Abstract: New methods of making cold formed, extruded aluminum lithium alloys, and unrecrystallized products made therefrom are disclosed. A method may include one or more of heating an unrecrystallized extruded aluminum-lithium product to a treatment temperature, cooling the unrecrystallized extruded aluminum-lithium product from the treatment temperature to a post-treatment temperature, and cold forming the unrecrystallized extruded aluminum-lithium product into a second product form. Due to the unique processing conditions of the method, the second product form may wholly or partially retain the unrecrystallized microstructure.
    Type: Application
    Filed: October 4, 2021
    Publication date: September 29, 2022
    Inventors: Logan Kirsch, Les A. Yocum, Diana K. Denzer, Douglas S. Bae, Andreas K. Kulovits, Ronald G. Cheney
  • Patent number: 9587294
    Abstract: Improved aluminum-copper-lithium alloys are disclosed. The alloys may include 3.4-4.2 wt. % Cu, 0.9-1.4 wt. % Li, 0.3-0.7 wt. % Ag, 0.1-0.6 wt. % Mg, 0.2-0.8 wt. % Zn, 0.1-0.6 wt. % Mn, and 0.01-0.6 wt. % of at least one grain structure control element, the balance being aluminum and incidental elements and impurities. The alloys achieve an improved combination of properties over prior art alloys.
    Type: Grant
    Filed: February 8, 2012
    Date of Patent: March 7, 2017
    Assignee: ARCONIC INC.
    Inventors: Edward L. Colvin, Roberto J. Rioja, Les A. Yocum, Diana K. Denzer, Todd K. Cogswell, Gary H. Bray, Ralph R. Sawtell, Andre L. Wilson
  • Publication number: 20140212326
    Abstract: Improved aluminum-copper-lithium alloys are disclosed. The alloys may include 3.4-4.2 wt. % Cu, 0.9-1.4 wt. % Li, 0.3-0.7 wt. % Ag, 0.1-0.6 wt. % Mg, 0.2-0.8 wt. % Zn, 0.1-0.6 wt. % Mn, and 0.01-0.6 wt. % of at least one grain structure control element, the balance being aluminum and incidental elements and impurities. The alloys achieve an improved combination of properties over prior art alloys.
    Type: Application
    Filed: April 1, 2014
    Publication date: July 31, 2014
    Applicant: ALCOA INC.
    Inventors: Edward L. Colvin, Roberto J. Rioja, Les A. Yocum, Diana K. Denzer, Todd K. Cogswell, Gary H. Bray, Ralph R. Sawtell, Andre L. Wilson
  • Publication number: 20120132324
    Abstract: Improved aluminum-copper-lithium alloys are disclosed. The alloys may include 3.4-4.2 wt. % Cu, 0.9-1.4 wt. % Li, 0.3-0.7 wt. % Ag, 0.1-0.6 wt. % Mg, 0.2-0.8 wt. % Zn, 0.1-0.6 wt. % Mn, and 0.01-0.6 wt. % of at least one grain structure control element, the balance being aluminum and incidental elements and impurities. The alloys achieve an improved combination of properties over prior art alloys.
    Type: Application
    Filed: February 8, 2012
    Publication date: May 31, 2012
    Applicant: Alcoa Inc.
    Inventors: Edward L. Colvin, Roberto J. Rioja, Les A. Yocum, Diana K. Denzer, Todd K. Cogswell, Gary H. Bray, Ralph R. Sawtell, Andre L. Wilson
  • Patent number: 8118950
    Abstract: Improved aluminum-copper-lithium alloys are disclosed. The alloys may include 3.4-4.2 wt. % Cu, 0.9-1.4 wt. % Li, 0.3-0.7 wt. % Ag, 0.1-0.6 wt. % Mg, 0.2-0.8 wt. % Zn, 0.1-0.6 wt. % Mn, and 0.01-0.6 wt. % of at least one grain structure control element, the balance being aluminum and incidental elements and impurities. The alloys achieve an improved combination of properties over prior art alloys.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: February 21, 2012
    Assignee: Alcoa Inc.
    Inventors: Edward L. Colvin, Roberto J. Rioja, Les A. Yocum, Diana K. Denzer, Todd K. Cogswell, Gary H. Bray, Ralph R. Sawtell, Andre L. Wilson
  • Publication number: 20090142222
    Abstract: Improved aluminum-copper-lithium alloys are disclosed. The alloys may include 3.4-4.2 wt. % Cu, 0.9-1.4 wt. % Li, 0.3-0.7 wt. % Ag, 0.1-0.6 wt. % Mg, 0.2-0.8 wt. % Zn, 0.1-0.6 wt. % Mn, and 0.01-0.6 wt. % of at least one grain structure control element, the balance being aluminum and incidental elements and impurities. The alloys achieve an improved combination of properties over prior art alloys.
    Type: Application
    Filed: December 4, 2008
    Publication date: June 4, 2009
    Applicant: ALCOA INC.
    Inventors: Edward L. Colvin, Roberto J. Rioja, Les A. Yocum, Diana K. Denzer, Todd K. Cogswell, Gary H. Bray, Ralph R. Sawtell, Andre L. Wilson