Patents by Inventor James E. Boyce

James E. Boyce 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).

  • Shaped cutting-grade inserts with transitionless diamond-enhanced surface layer
    Patent number: 6845828
    Abstract: A thin layer of carbide containing an ultra-hard component, such as diamond, is applied to a formed compact for a drilling tool. The compact is then subjected to a high-temperature, high-pressure process to bond it to the added layer. This process allows the use of an underlying substrate which has a lower binder content than previously possible. The compact provides superior cutting ability, as even if the diamond-enhanced layer wears through, the carbide can provide enhanced hardness.
    Type: Grant
    Filed: August 3, 2001
    Date of Patent: January 25, 2005
    Assignee: Halliburton Energy Svcs Inc.
    Inventor: James E. Boyce
  • Shaped cutting-grade inserts with transitionless diamond-enhanced surface layer
    Publication number: 20020037200
    Abstract: A thin layer of carbide containing an ultra-hard component, such as diamond, is applied to a formed compact for a drilling tool. The compact is then subjected to a high-temperature, high-pressure process to bond it to the added layer. This process allows the use of an underlying substrate which has a lower binder content than previously possible. The compact provides superior cutting ability, as even if the diamond-enhanced layer wears through, the carbide can provide enhanced hardness.
    Type: Application
    Filed: August 3, 2001
    Publication date: March 28, 2002
    Inventor: James E. Boyce