Patents by Inventor Alexei Jozef Barr

Alexei Jozef Barr 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).

  • Fixed cutter bits and other downhole tools having non-planar cutting elements thereon
    Patent number: 10794118
    Abstract: A downhole cutting tool includes a body having a central axis extending therethrough, a plurality of blades extending outwardly from the body and converging towards a central region around the central axis, and at least one cutting element having a longitudinal axis, a non-cylindrical substrate, and an ultra-hard material body on the non-cylindrical substrate, the ultra-hard material body having a side surface extending around a cutting face and defining a cross-sectional shape of the ultra-hard material body, and the side surface comprising an edge having an inner angle of less than 180 degrees.
    Type: Grant
    Filed: November 20, 2016
    Date of Patent: October 6, 2020
    Assignee: SMITH INTERNATIONAL, INC.
    Inventors: Michael G. Azar, Somasundaram Valliyappan, Jason R. Gregg, Jordan Mark Self, Keisha Marie Spagnoletti, Alexei Jozef Barr, Balasubramanian Durairajan
  • FIXED CUTTER BITS AND OTHER DOWNHOLE TOOLS HAVING NON-PLANAR CUTTING ELEMENTS THEREON
    Publication number: 20180334860
    Abstract: A downhole cutting tool includes a body having a central axis extending therethrough, a plurality of blades extending outwardly from the body and converging towards a central region around the central axis, and at least one cutting element having a longitudinal axis, a non-cylindrical substrate, and an ultra-hard material body on the non-cylindrical substrate, the ultra-hard material body having a side surface extending around a cutting face and defining a cross-sectional shape of the ultra-hard material body, and the side surface comprising an edge having an inner angle of less than 180 degrees.
    Type: Application
    Filed: November 20, 2016
    Publication date: November 22, 2018
    Inventors: Michael G. Azar, Somasundaram Valliyappan, Jason R. Gregg, Jordan Mark Self, Keisha Marie Spagnoletti, Alexei Jozef Barr, Balasubramanian Durairajan