1
Kenneth E Bertagnolli, Jiang Qian, Jason Wiggins, Michael A Vail, Debkumar Mukhopadhyay: Rotary drill bit including polycrystalline diamond cutting elements. US Synthetic Corporation, Workman Nydegger, January 11, 2011: US07866418 (155 worldwide citation)

Embodiments of the invention relate to polycrystalline diamond (“PCD”) exhibiting enhanced diamond-to-diamond bonding. In an embodiment, PCD includes a plurality of diamond grains defining a plurality of interstitial regions. A metal-solvent catalyst occupies at least a portion of the plurality of i ...


2
Kenneth E Bertagnolli, Michael A Vail: Polycrystalline diamond compact (PDC) cutting element having multiple catalytic elements. US Synthetic Corporation, Holland & Hart, December 22, 2009: US07635035 (111 worldwide citation)

A polycrystalline diamond compact useful for wear, cutting, drilling, drawing and like applications is provided with a first diamond region remote from the working surface which has a metallic catalyzing material and a second diamond region adjacent to or including the working surface containing a n ...


3
Kenneth E Bertagnolli, David P Miess: Superabrasive elements, methods of manufacturing, and drill bits including same. US Synthetic Corporation, Workman Nydegger, August 7, 2012: US08236074 (96 worldwide citation)

Methods of manufacturing a superabrasive element are disclosed. In one embodiment, a substrate and a preformed superabrasive volume may be at least partially surrounded by an enclosure and the enclosure may be sealed in an inert environment. Further, the enclosure may be exposed to an elevated press ...


4
Kenneth E Bertagnolli, Kenneth M Jensen: Polycrystalline diamond compact cutter having a stress mitigating hoop at the periphery. Lloyd W Sadler, June 25, 2002: US06408959 (85 worldwide citation)

A cutting element, insert or compact, is provided for use with drills used in the drilling and boring of subterranean formations. This new insert, in its preferred embodiment, has a “hoop” region of polycrystalline diamond extending around the periphery of the compact to reduce the residual stresses ...


5
Jiang Qian, Kenneth E Bertagnolli, Michael A Vail, Jason Wiggins, Jim I Dewberry, David P Miess: Superabrasive compact including diamond-silicon carbide composite, methods of fabrication thereof, and applications therefor. US Synthetic Corporation, Workman Nydegger, August 16, 2011: US07998573 (69 worldwide citation)

Embodiments of the present invention relate to diamond-silicon carbide composites, superabrasive compacts including such diamond-silicon carbide composites, and methods of fabricating such diamond-silicon carbide composites and superabrasive compacts. In one embodiment, a superabrasive compact inclu ...


6
Michael A Vail, Kenneth E Bertagnolli: Polycrystalline diamond compacts, methods of fabricating same, and applications using same. US Synthetic Corporation, Workman Nydegger, December 7, 2010: US07845438 (56 worldwide citation)

Embodiments relate to PDCs, methods of fabricating PDCs, and applications for such PDCs. In an embodiment, a PDC includes a substrate and a pre-sintered PCD table including an interfacial surface that is bonded to the substrate. The pre-sintered PCD table may be substantially free of leaching by-pro ...


7
Kenneth E Bertagnolli, Kenneth M Jensen: Polycrystalline diamond compact cutter having a stress mitigating hoop at the periphery. U S Synthetic Corporation, Lloyd W Sadler, February 20, 2001: US06189634 (40 worldwide citation)

A cutting element, insert or compact, is provided for use with drills used in the drilling and boring of subterranean formations. This new insert, in its preferred embodiment, has a “hoop” region of polycrystalline diamond extending around the periphery of the compact to reduce the residual stresses ...


8
Kenneth E Bertagnolli: Polycrystalline diamond apparatuses and methods of manufacture. US Synthetic Corporation, Holland & Hart, November 30, 2010: US07841428 (32 worldwide citation)

Methods of manufacturing polycrystalline diamond are disclosed. More particularly, a mixture including diamond and fullerenes may be provided. Further, the mixture may be exposed to a high pressure, high temperature sintering process. In addition, a volume of polycrystalline diamond bonded to a subs ...


9
Kenneth E Bertagnolli, David P Miess, Jiang Qian, Jason K Wiggins, Michael A Vail, Debkumar Mukhopadhyay: Polycrystalline diamond compacts, method of fabricating same, and various applications. US Synthetic Corporation, Workman Nydegger, October 30, 2012: US08297382 (30 worldwide citation)

Embodiments of the invention relate to polycrystalline diamond (“PCD”) exhibiting enhanced diamond-to-diamond bonding. In an embodiment, polycrystalline diamond compact (“PDC”) includes a PCD table having a maximum thickness. At least a portion of the PCD table includes a plurality of diamond grains ...


10
Craig H Cooley, Kenneth E Bertagnolli, Michael A Vail: Superabrasive elements, methods of manufacturing, and drill bits including same. US Synthetic Corporation, Workman Nydegger, June 19, 2012: US08202335 (22 worldwide citation)

Methods of manufacturing a superabrasive element and/or compact are disclosed. In one embodiment, a superabrasive volume including a tungsten carbide layer may be formed. Polycrystalline diamond elements and/or compacts are disclosed. Rotary drill bits for drilling a subterranean formation and inclu ...