Patents by Inventor Leigh McLean

Leigh McLean 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).

  • Mechanically-assisted gaseous addition of hydrogen to metal alloys
    Patent number: 11555236
    Abstract: An article formed of a metal alloy is covered at least partially with a metal hydride and a shell metal to form an assembly. Load is applied to the assembly and the assembly is heated. The shell metal deforms around the article and the metal hydride and forms a gas proof seal. The metal hydride thermally decomposes to form hydrogen gas. At least a portion of the hydrogen gas dissociates and moves as monoatomic hydrogen into the article. The metal alloy can be a zirconium metal alloy, the metal hydride can be a zirconium metal hydride, and the shell metal can be substantially copper.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: January 17, 2023
    Assignee: Atomic Energy of Canada Limited / Énergie Atomique du Canada Limitée
    Inventors: Glenn Aldon McRae, Christopher Edward Coleman, Curtis John St. Louis, Scott Thomas Langille, James Leigh McLean Corrigall, Heidi Marie Nordin, Sean Michael Kevin Hanlon, Scott Anthony Douglas Read, Kevin William McCaugherty
  • Secure password lock and recovery
    Patent number: 10812267
    Abstract: Secure password lock and recovery is provided. A user password is received to access a secure resource protected by a data processing system. It is determined whether a match exists between a retrieved user password verification string corresponding to a valid user password from a storage of a software token and a generated user password verification string corresponding to the user password. In response to determining that a match does not exist between the retrieved user password verification string and the generated user password verification string, it is determined whether a defined number of user password authentication attempts has been exceeded. In response to determining that the defined number of user password authentication attempts has been exceeded, the retrieved user password verification string is set to a preestablished sequence of values locking the valid user password on the storage of the software token. Access to the secure resource is denied.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: October 20, 2020
    Assignee: International Business Machines Corporation
    Inventors: Simon McMahon, Narayana Madineni, Michael W. Gray, Leigh McLean, Matthew Green, Luvita Burgess, Stephen J. McKenzie, Peter Waltenberg
  • MECHANICALLY-ASSISTED GASEOUS ADDITION OF HYDROGEN TO METAL ALLOYS
    Publication number: 20200208248
    Abstract: An article formed of a metal alloy is covered at least partially with a metal hydride and a shell metal to form an assembly. Load is applied to the assembly and the assembly is heated. The shell metal deforms around the article and the metal hydride and forms a gas proof seal. The metal hydride thermally decomposes to form hydrogen gas. At least a portion of the hydrogen gas dissociates and moves as monoatomic hydrogen into the article. The metal alloy can be a zirconium metal alloy, the metal hydride can be a zirconium metal hydride, and the shell metal can be substantially copper.
    Type: Application
    Filed: June 21, 2018
    Publication date: July 2, 2020
    Inventors: Glenn Aldon McRae, Christopher Edward Coleman, Curtis John St. Louis, Scott Thomas Langille, James Leigh McLean Corrigall, Heidi Marie Nordin, Sean Michael Kevin Hanlon, Scott Anthony Douglas Read, Kevin Willam McCaugherty
  • SECURE PASSWORD LOCK AND RECOVERY
    Publication number: 20200145215
    Abstract: Secure password lock and recovery is provided. A user password is received to access a secure resource protected by a data processing system. It is determined whether a match exists between a retrieved user password verification string corresponding to a valid user password from a storage of a software token and a generated user password verification string corresponding to the user password. In response to determining that a match does not exist between the retrieved user password verification string and the generated user password verification string, it is determined whether a defined number of user password authentication attempts has been exceeded. In response to determining that the defined number of user password authentication attempts has been exceeded, the retrieved user password verification string is set to a preestablished sequence of values locking the valid user password on the storage of the software token. Access to the secure resource is denied.
    Type: Application
    Filed: November 5, 2018
    Publication date: May 7, 2020
    Inventors: Simon McMahon, Narayana Madineni, Michael W. Gray, Leigh McLean, Matthew Green, Luvita Burgess, Stephen J. McKenzie, Peter Waltenberg