1
Terry R Matthias, Nigel Dennis Griffin, Peter Raymond Hughes: Polycrystalline diamond cutters with working surfaces having varied wear resistance while maintaining impact strength. Grant Prideco, Jeffery E Daly, August 5, 2003: US06601662 (249 worldwide citation)

Disclosed is a polycrystalline diamond or diamond-like element with greatly improved wear resistance without loss of impact strength. These elements are formed with a binder-catalyzing material in a high-temperature, high-pressure (HTHP) process. The PCD element has a body with a plurality of bonded ...


2
Nigel Dennis Griffin, Peter Raymond Hughes: High volume density polycrystalline diamond with working surfaces depleted of catalyzing material. Camco International, Jeffery E Daly, April 8, 2003: US06544308 (241 worldwide citation)

Disclosed is a polycrystalline diamond or diamond-like element with greatly improved wear resistance without loss of impact strength. These elements are formed with a binder-catalyzing material in a high-temperature, high-pressure (HTHP) process. The PCD element has a body with a plurality of bonded ...


3
Nigel Dennis Griffin, Peter Raymond Hughes: High volume density polycrystalline diamond with working surfaces depleted of catalyzing material. ReedHycalog, Jeffery E Daly, March 1, 2005: US06861137 (205 worldwide citation)

Disclosed is a method for manufacturing a polycrystalline diamond or diamond-like element with greatly improved wear resistance without loss of impact strength. These elements are formed with a binder-catalyzing material in a high-temperature, high-pressure (HTHP) process. The PCD element has a body ...


4
Nigel Dennis Griffin, Peter Raymond Hughes: Polycrystalline diamond partially depleted of catalyzing material. Jeffery E Daly, July 8, 2003: US06589640 (200 worldwide citation)

The present invention provides a superhard polycrystalline diamond or diamond-like element with greatly improved resistance to thermal degradation without loss of impact strength. Collectively called PCD elements, these elements are formed with a binder-catalyzing material in a high-temperature, hig ...


5
Nigel Dennis Griffin, Peter Raymond Hughes: High volume density polycrystalline diamond with working surfaces depleted of catalyzing material. Camco International, Jeffery E Daly, May 13, 2003: US06562462 (195 worldwide citation)

Disclosed is a polycrystalline diamond or diamond-like element with greatly improved wear resistance without loss of impact strength. These elements are formed with a binder-catalyzing material in a high-temperature, high-pressure (HTHP) process. The PCD element has a body with a plurality of bonded ...


6
Nigel Dennis Griffin, Peter Raymond Hughes: Polycrystalline diamond partially depleted of catalyzing material. Camco International, Jeffery E Daly, July 15, 2003: US06592985 (189 worldwide citation)

The present invention provides a superhard polycrystalline diamond or diamond-like element with greatly improved resistance to thermal degradation without loss of impact strength. Collectively called PCD elements, these elements are formed with a binder-catalyzing material in a high-temperature, hig ...


7
Nigel Dennis Griffin, Peter Raymond Hughes: Polycrystalline diamond partially depleted of catalyzing material. ReedHyoalog, Jeffery E Daly, June 15, 2004: US06749033 (163 worldwide citation)

The present invention provides a superhard polycrystalline diamond or diamond-like element with greatly improved resistance to thermal degradation without loss of impact strength. Collectively called PCD elements, these elements are formed with a binder-catalyzing material in a high-temperature, hig ...


8
Nigel Dennis Griffin, Peter Raymond Hughes: Polycrystalline diamond partially depleted of catalyzing material. ReedHycalog, Jeffery E Daly, May 25, 2004: US06739214 (139 worldwide citation)

The present invention provides a method of making an earth boring drill bit having a superhard polycrystalline diamond or diamond-like element with greatly improved resistance to thermal degradation without loss of impact strength. Collectively called PCD elements, these elements are formed with a b ...


9
Nigel Dennis Griffin, Peter Raymond Hughes: Method of making polycrystalline diamond with working surfaces depleted of catalyzing material. Reedhycalog, Jeffery E Daly, September 28, 2004: US06797326 (134 worldwide citation)

Griffin, Nigel, et al78.1081-1.3-29 Disclosed is a method for manufacturing a polycrystalline diamond or diamond-like element with greatly improved wear resistance without loss of impact strength. These elements are formed with a binder-catalyzing material in a high-temperature, high-pressure (HTHP) ...


10
Nigel Dennis Griffin, Peter Raymond Hughes: Polycrystalline diamond partially depleted of catalyzing material. ReedHycalog, Jeffery E Daly, April 12, 2005: US06878447 (131 worldwide citation)

The present invention provides a superhard polycrystalline diamond or diamond-like element with greatly improved resistance to thermal degradation without loss of impact strength. Collectively called PCD elements, these elements are formed with a binder-catalyzing material in a high-temperature, hig ...



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