Patents by Inventor Francis Raymond Corrigan

Francis Raymond Corrigan 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).

  • Method for producing abrasive compact with improved properties
    Patent number: 6132675
    Abstract: Metal carbide supported polycrystalline diamond (PCD) compacts having improved abrasion/impact resistance properties and a method for making the same under high temperature/high pressure (HT/HP) processing conditions. The PCD compact is characterized as having a mixture of submicron sized diamond particles and large sized diamond particles.
    Type: Grant
    Filed: May 29, 1998
    Date of Patent: October 17, 2000
    Assignee: General Electric Company
    Inventors: Francis Raymond Corrigan, Henry Samuel Marek
  • Abrasive compact with improved properties
    Patent number: 5855996
    Abstract: Metal carbide supported polycrystalline diamond (PCD) compacts having improved abrasion/impact resistance properties and a method for making the same under high temperature/high pressure (HT/HP) processing conditions. The PCD compact is characterized as having a mixture of submicron sized diamond particles and large sized diamond particles.
    Type: Grant
    Filed: December 12, 1995
    Date of Patent: January 5, 1999
    Assignee: General Electric Company
    Inventors: Francis Raymond Corrigan, Henry Samuel Marek