Patents by Inventor Haydn G. Smith

Haydn G. Smith 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).

  • Rotary downhole tool
    Patent number: 10794119
    Abstract: A rotary downhole tool, for example in the form of a drill bit, is described that includes a tool body, the body defining a gauge region, and at least one gauge roller rotatably mounted to the body.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: October 6, 2020
    Assignee: NOV Downhole Eurasia Limited
    Inventors: Haydn G. Smith, Graham Watson
  • ROTARY DOWNHOLE TOOL
    Publication number: 20180238117
    Abstract: A rotary downhole tool, for example in the form of a drill bit, is described that includes a tool body, the body defining a gauge region, and at least one gauge roller rotatably mounted to the body.
    Type: Application
    Filed: January 28, 2016
    Publication date: August 23, 2018
    Applicant: NOV Downhole Eurasia Limited
    Inventors: Haydn G. Smith, Graham Watson
  • Cutting element
    Patent number: 10000975
    Abstract: A cutting element comprises a table of superhard material bonded to a substrate, wherein the table defines a cutting edge and has a chamfered peripheral edge, and a groove in a sidewall of the cutting element passes through the chamfered peripheral edge, so as to reduce the depth of the chamfer at the location of the groove.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: June 19, 2018
    Assignee: NOV Downhole Eurasia Limited
    Inventors: Alan Honggen Jiang, Mark Jonathan Francis, Terry Matthias, Haydn G. Smith
  • Cutting element
    Patent number: 10000976
    Abstract: A cutting element comprises a primary cutter including a first table of a hard material bonded to a first substrate of less hard form, the first substrate of the primary cutter having a recess formed therein in which a secondary cutter is located, the secondary cutter comprising a second table of a hard material bonded to a second substrate of less hard material, the first and second tables being spaced apart from one another by at least part of the first substrate.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: June 19, 2018
    Assignee: NOV Downhole Eurasia Limited
    Inventors: Terry Matthias, Haydn G. Smith
  • Cutting Element
    Publication number: 20160047170
    Abstract: A cutting element comprises a primary cutter including a first table of a hard material bonded to a first substrate of less hard form, the first substrate of the primary cutter having a recess formed therein in which a secondary cutter is located, the secondary cutter comprising a second table of a hard material bonded to a second substrate of less hard material, the first and second tables being spaced apart from one another by at least part of the first substrate.
    Type: Application
    Filed: March 12, 2014
    Publication date: February 18, 2016
    Applicant: NOV Downhole Eurasia Limited
    Inventors: Terry Matthias, Haydn G. Smith
  • Cutting Element
    Publication number: 20150368981
    Abstract: A cutting element comprises a table of superhard material bonded to a substrate, wherein the table defines a cutting edge and has a chamfered peripheral edge, and a groove in a sidewall of the cutting element passes through the chamfered peripheral edge, so as to reduce the depth of the chamfer at the location of the groove.
    Type: Application
    Filed: January 28, 2014
    Publication date: December 24, 2015
    Applicant: NOV Downhole Eurasia Limited
    Inventors: Alan Honggen Jiang, Mark Jonathan Francis, Terry Matthias, Haydn G. Smith