Patents by Inventor Sang-Ha Leigh

Sang-Ha Leigh 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).

  • Composite powder and gall-resistant coating
    Patent number: 7404841
    Abstract: A composite powder includes an FeMo based first powder including between about 20% and about 55% by weight Fe and between about 45% and about 80% by weight of Mo. The composite powder also includes an aluminum bronze based second powder blended with the FeMo based first powder.
    Type: Grant
    Filed: October 20, 2005
    Date of Patent: July 29, 2008
    Assignee: Caterpillar Inc.
    Inventors: Sang-Ha Leigh, Hyung K. Yoon
  • Composite powder and gall-resistant coating
    Patent number: 7094474
    Abstract: A composite powder includes an FeMo based first powder including between about 20% and about 55% by weight Fe and between about 45% and about 80% by weight of Mo. The composite powder also includes an aluminum bronze based second powder blended with the FeMo based first powder.
    Type: Grant
    Filed: June 17, 2004
    Date of Patent: August 22, 2006
    Assignee: Caterpillar, Inc.
    Inventors: Sang-Ha Leigh, Hyung K. Yoon
  • Composite powder and gall-resistant coating
    Publication number: 20060048605
    Abstract: A composite powder includes an FeMo based first powder including between about 20% and about 55% by weight Fe and between about 45% and about 80% by weight of Mo. The composite powder also includes an aluminum bronze based second powder blended with the FeMo based first powder.
    Type: Application
    Filed: October 20, 2005
    Publication date: March 9, 2006
    Inventors: Sang-Ha Leigh, Hyung Yoon
  • Composite powder and gall-resistant coating
    Publication number: 20060035019
    Abstract: A composite powder includes an FeMo based first powder including between about 20% and about 55% by weight Fe and between about 45% and about 80% by weight of Mo. The composite powder also includes an aluminum bronze based second powder blended with the FeMo based first powder.
    Type: Application
    Filed: October 20, 2005
    Publication date: February 16, 2006
    Inventors: Sang-Ha Leigh, Hyung Yoon
  • Composite powder and gall-resistant coating
    Publication number: 20050279186
    Abstract: A composite powder includes an FeMo based first powder including between about 20% and about 55% by weight Fe and between about 45% and about 80% by weight of Mo. The composite powder also includes an aluminum bronze based second powder blended with the FeMo based first powder.
    Type: Application
    Filed: June 17, 2004
    Publication date: December 22, 2005
    Inventors: Sang-Ha Leigh, Hyung Yoon