Patents by Inventor Greg Carlos Topham
Greg Carlos Topham 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).
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Patent number: 11753873Abstract: Embodiments of the invention relate to polycrystalline diamond compacts (“PDCs”) including a polycrystalline diamond (“PCD”) table having a structure for enhancing at least one of abrasion resistance, thermal stability, or impact resistance. In an embodiment, a PDC includes a PCD table. The PCD table includes a lower region including a plurality of diamond grains exhibiting a lower average grain size and at least an upper region adjacent to the lower region and including a plurality of diamond grains exhibiting an upper average grain size. The lower average grain size may be at least two times greater than that of the upper average grain size. The PDC includes a substrate having an interfacial surface that is bonded to the lower region of the PCD table. Other embodiments are directed methods of forming PDCs, and various applications for such PDCs in rotary drill bits, bearing apparatuses, and wire-drawing dies.Type: GrantFiled: May 18, 2021Date of Patent: September 12, 2023Assignee: US SYNTHETIC CORPORATIONInventors: Greg Carlos Topham, Renato Ventura
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Patent number: 11746601Abstract: Embodiments relate to a polycrystalline diamond compact (“PDC”) including a polycrystalline diamond (“PCD”) table having at least two regions and being bonded to a fine grained cemented tungsten carbide substrate. In an embodiment, a PDC includes a cemented carbide substrate having a cobalt-containing cementing constituent cementing tungsten carbide grains together that exhibit an average grain size of about 1.5 ?m or less, and a PCD table having at least one upper region including diamond grains exhibiting an upper average grain size and at least one lower region adjacent to the upper region a lower average grain size that may be at least two times greater than the upper average grain size. The cemented carbide substrate includes an interfacial surface and a depletion zone depleted of the cementing constituent that extends inwardly from the interfacial surface to a depth of, for example, about 30 ?m to about 60 ?m.Type: GrantFiled: September 27, 2019Date of Patent: September 5, 2023Assignee: US SYNTHETIC CORPORATIONInventors: Debkumar Mukhopadhyay, Greg Carlos Topham, Renato Ventura
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Patent number: 11255129Abstract: Embodiments of the present invention provides cutting elements for use on rotary drill bits for drilling subterranean formations. More specifically, the present disclosure relates to cutting elements having a shaped upper surface including at least one spoke for cutting and/or failing subterranean formations during drilling. The present disclosure also relates to drill bits incorporating one or more of such cutting elements.Type: GrantFiled: January 16, 2019Date of Patent: February 22, 2022Assignees: Ulterra Drilling Technologies, L.P., US Synthetic CorporationInventors: William Henry Dubose, Brady Walters, Christopher M. Casad, Josh Criswell, Tyler Scott Dunaway, Greg Carlos Topham
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Patent number: 11035176Abstract: Embodiments of the invention relate to polycrystalline diamond compacts (“PDCs”) including a polycrystalline diamond (“PCD”) table having a structure for enhancing at least one of abrasion resistance, thermal stability, or impact resistance. In an embodiment, a PDC includes a PCD table. The PCD table includes a lower region including a plurality of diamond grains exhibiting a lower average grain size and at least an upper region adjacent to the lower region and including a plurality of diamond grains exhibiting an upper average grain size. The lower average grain size may be at least two times greater than that of the upper average grain size. The PDC includes a substrate having an interfacial surface that is bonded to the lower region of the PCD table. Other embodiments are directed methods of forming PDCs, and various applications for such PDCs in rotary drill bits, bearing apparatuses, and wire-drawing dies.Type: GrantFiled: January 21, 2020Date of Patent: June 15, 2021Assignee: US SYNTHETIC CORPORATIONInventors: Greg Carlos Topham, Renato Ventura
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Patent number: 10760344Abstract: Embodiments of the invention relate to methods of fabricating leached polycrystalline diamond compacts (“PDCs”) in which a polycrystalline diamond table thereof is leached and resized to provide a leached region having a selected geometry. Creating a leached region having such a selected geometry may improve the performance of the PDC in various conditions, such as impact strength and/or thermal stability.Type: GrantFiled: June 9, 2017Date of Patent: September 1, 2020Assignee: US SYNTHETIC CORPORATIONInventor: Greg Carlos Topham
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Publication number: 20200224500Abstract: Embodiments of the present invention provides cutting elements for use on rotary drill bits for drilling subterranean formations. More specifically, the present disclosure relates to cutting elements having a shaped upper surface including at least one spoke for cutting and/or failing subterranean formations during drilling. The present disclosure also relates to drill bits incorporating one or more of such cutting elements.Type: ApplicationFiled: January 16, 2019Publication date: July 16, 2020Applicant: Ulterra Drilling Technologies, L.P.Inventors: William Henry Dubose, Brady Walters, Christopher M. Casad, Josh Criswell, Tyler Scott Dunaway, Greg Carlos Topham
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Patent number: 10683584Abstract: Embodiments disclosed herein are directed to methods and systems for X-ray imaging and/or inspection of a PCD element in a protective leaching cup, which may be placed in a tray. Embodiments include inspection of one or more characteristics between the protective leaching cup and the PCD element prior to and/or after leaching of the PCD element. Embodiments also include using X-ray imaging to assist with positioning the PCD element in the protective leaching cup. Embodiments further include inspection of one or more defects in the PCD element during processing and/or after usage by X-ray technique.Type: GrantFiled: December 6, 2018Date of Patent: June 16, 2020Assignee: US SYNTHETIC CORPORATIONInventors: Tyler Scott Dunaway, Greg Carlos Topham, Renato Ventura
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Patent number: 10584539Abstract: Embodiments of the invention relate to polycrystalline diamond compacts (“PDCs”) including a polycrystalline diamond (“PCD”) table having a structure for enhancing at least one of abrasion resistance, thermal stability, or impact resistance. In an embodiment, a PDC includes a PCD table. The PCD table includes a lower region including a plurality of diamond grains exhibiting a lower average grain size and at least an upper region adjacent to the lower region and including a plurality of diamond grains exhibiting an upper average grain size. The lower average grain size may be at least two times greater than that of the upper average grain size. The PDC includes a substrate having an interfacial surface that is bonded to the lower region of the PCD table. Other embodiments are directed methods of forming PDCs, and various applications for such PDCs in rotary drill bits, bearing apparatuses, and wire-drawing dies.Type: GrantFiled: March 5, 2018Date of Patent: March 10, 2020Assignee: US SYNTHETIC CORPORATIONInventors: Greg Carlos Topham, Renato Ventura
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Patent number: 10494874Abstract: Embodiments relate to a polycrystalline diamond compact (“PDC”) including a polycrystalline diamond (“PCD”) table having at least two regions and being bonded to a fine grained cemented tungsten carbide substrate. In an embodiment, a PDC includes a cemented carbide substrate having a cobalt-containing cementing constituent cementing tungsten carbide grains together that exhibit an average grain size of about 1.5 ?m or less, and a PCD table having at least one upper region including diamond grains exhibiting an upper average grain size and at least one lower region adjacent to the upper region a lower average grain size that may be at least two times greater than the upper average grain size. The cemented carbide substrate includes an interfacial surface and a depletion zone depleted of the cementing constituent that extends inwardly from the interfacial surface to a depth of, for example, about 30 ?m to about 60 ?m.Type: GrantFiled: June 25, 2018Date of Patent: December 3, 2019Assignee: US SYNTHETIC CORPORATIONInventors: Debkumar Mukhopadhyay, Greg Carlos Topham, Renato Ventura
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Patent number: 10179957Abstract: Embodiments disclosed herein are directed to methods and systems for X-ray imaging and/or inspection of a PCD element in a protective leaching cup, which may be placed in a tray. Embodiments include inspection of one or more characteristics between the protective leaching cup and the PCD element prior to and/or after leaching of the PCD element. Embodiments also include using X-ray imaging to assist with positioning the PCD element in the protective leaching cup. Embodiments further include inspection of one or more defects in the PCD element during processing and/or after usage by X-ray technique.Type: GrantFiled: March 11, 2016Date of Patent: January 15, 2019Assignee: US SYNTHETIC CORPORATIONInventors: Tyler Scott Dunaway, Greg Carlos Topham, Renato Ventura
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Patent number: 10030451Abstract: Embodiments relate to a polycrystalline diamond compact (“PDC”) including a polycrystalline diamond (“PCD”) table having at least two regions and being bonded to a fine grained cemented tungsten carbide substrate. In an embodiment, a PDC includes a cemented carbide substrate having a cobalt-containing cementing constituent cementing tungsten carbide grains together that exhibit an average grain size of about 1.5 ?m or less, and a PCD table having at least one upper region including diamond grains exhibiting an upper average grain size and at least one lower region adjacent to the upper region a lower average grain size that may be at least two times greater than the upper average grain size. The cemented carbide substrate includes an interfacial surface and a depletion zone depleted of the cementing constituent that extends inwardly from the interfacial surface to a depth of, for example, about 30 ?m to about 60 ?m.Type: GrantFiled: November 12, 2014Date of Patent: July 24, 2018Assignee: US SYNTHETIC CORPORATIONInventors: Debkumar Mukhopadhyay, Greg Carlos Topham, Renato Ventura
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Patent number: 9938775Abstract: Embodiments of the invention relate to polycrystalline diamond compacts (“PDCs”) including a polycrystalline diamond (“PCD”) table having a structure for enhancing at least one of abrasion resistance, thermal stability, or impact resistance. In an embodiment, a PDC includes a PCD table. The PCD table includes a lower region including a plurality of diamond grains exhibiting a lower average grain size and at least an upper region adjacent to the lower region and including a plurality of diamond grains exhibiting an upper average grain size. The lower average grain size may be at least two times greater than that of the upper average grain size. The PDC includes a substrate having an interfacial surface that is bonded to the lower region of the PCD table. Other embodiments are directed methods of forming PDCs, and various applications for such PDCs in rotary drill bits, bearing apparatuses, and wire-drawing dies.Type: GrantFiled: March 23, 2016Date of Patent: April 10, 2018Assignee: US SYNTHETIC CORPORATIONInventors: Greg Carlos Topham, Renato Ventura
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Patent number: 9702198Abstract: Embodiments of the invention relate to methods of fabricating leached polycrystalline diamond compacts (“PDCs”) in which a polycrystalline diamond table thereof is leached and resized to provide a leached region having a selected geometry. Creating a leached region having such a selected geometry may improve the performance of the PDC in various conditions, such as impact strength and/or thermal stability.Type: GrantFiled: March 6, 2014Date of Patent: July 11, 2017Assignee: US SYNTHETIC CORPORATIONInventor: Greg Carlos Topham
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Patent number: 9316059Abstract: Embodiments of the invention relate to polycrystalline diamond compacts (“PDCs”) including a polycrystalline diamond (“PCD”) table having a structure for enhancing at least one of abrasion resistance, thermal stability, or impact resistance. In an embodiment, a PDC includes a PCD table. The PCD table includes a lower region including a plurality of diamond grains exhibiting a lower average grain size and at least an upper region adjacent to the lower region and including a plurality of diamond grains exhibiting an upper average grain size. The lower average grain size may be at least two times greater than that of the upper average grain size. The PDC includes a substrate having an interfacial surface that is bonded to the lower region of the PCD table. Other embodiments are directed methods of forming PDCs, and various applications for such PDCs in rotary drill bits, bearing apparatuses, and wire-drawing dies.Type: GrantFiled: August 21, 2012Date of Patent: April 19, 2016Assignee: US SYNTHETIC CORPORATIONInventors: Greg Carlos Topham, Renato Ventura
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Patent number: D878436Type: GrantFiled: November 16, 2017Date of Patent: March 17, 2020Assignee: US SYNTHETIC CORPORATIONInventors: Tyler Scott Dunaway, Greg Carlos Topham
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Patent number: D908753Type: GrantFiled: February 11, 2020Date of Patent: January 26, 2021Assignee: US SYNTHETIC CORPORATIONInventors: Tyler Scott Dunaway, Greg Carlos Topham
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Patent number: D914070Type: GrantFiled: February 11, 2020Date of Patent: March 23, 2021Assignee: US SYNTHETIC CORPORATIONInventors: Tyler Scott Dunaway, Greg Carlos Topham, William Henry Dubose, Josh Criswell