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Class Information
Number: 175/434
Name: Boring or penetrating the earth > Bit or bit element > Specific or diverse material > Diamond
Description: Apparatus in which the very hard, crystallized form of the element carbon, commonly called a "diamond" is included as a specific material in the structure of the bit.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7426969 |
Bits and cutting structures |
Sep. 23, 2008 |
| 7395880 |
Mortar removal drill bit system |
Jul. 8, 2008 |
| 7392865 |
Randomly-oriented composite constructions |
Jul. 1, 2008 |
| 7353893 |
Tool with a large volume of a superhard material |
Apr. 8, 2008 |
| 7350601 |
Cutting elements formed from ultra hard materials having an enhanced construction |
Apr. 1, 2008 |
| 7347292 |
Braze material for an attack tool |
Mar. 25, 2008 |
| 7311159 |
PCD face seal for earth-boring bit |
Dec. 25, 2007 |
| 7278499 |
Rotary drag bit including a central region having a plurality of cutting structures |
Oct. 9, 2007 |
| 7267187 |
Braze alloy and method of use for drilling applications |
Sep. 11, 2007 |
| 7243745 |
Cutting elements and rotary drill bits including same |
Jul. 17, 2007 |
| 7243744 |
Randomly-oriented composite constructions |
Jul. 17, 2007 |
| 7234541 |
DLC coating for earth-boring bit seal ring |
Jun. 26, 2007 |
| 7234550 |
Bits and cutting structures |
Jun. 26, 2007 |
| 7207401 |
One trip milling system |
Apr. 24, 2007 |
| 7188692 |
Superabrasive cutting elements having enhanced durability, method of producing same, and drill bits so equipped |
Mar. 13, 2007 |
| 7048081 |
Superabrasive cutting element having an asperital cutting face and drill bit so equipped |
May. 23, 2006 |
| 7017677 |
Coarse carbide substrate cutting elements and method of forming the same |
Mar. 28, 2006 |
| 7011169 |
Expanded coverage carbide compact |
Mar. 14, 2006 |
| 6973978 |
Drilling tool having an expandable bladder and method for using same |
Dec. 13, 2005 |
| 6935444 |
Superabrasive cutting elements with cutting edge geometry having enhanced durability, method of producing same, and drill bits so equipped |
Aug. 30, 2005 |
| 6933049 |
Abrasive tool inserts with diminished residual tensile stresses and their production |
Aug. 23, 2005 |
| 6915866 |
Polycrystalline diamond with improved abrasion resistance |
Jul. 12, 2005 |
| 6904983 |
Low-contact area cutting element |
Jun. 14, 2005 |
| 6892836 |
Cutting element having a substrate, a transition layer and an ultra hard material layer |
May. 17, 2005 |
| 6843333 |
Impregnated rotary drag bit |
Jan. 18, 2005 |
| 6841260 |
Composite constructions with oriented microstructure |
Jan. 11, 2005 |
| 6823952 |
Structure for polycrystalline diamond insert drill bit body |
Nov. 30, 2004 |
| 6808031 |
Drill bit having large diameter PDC cutters |
Oct. 26, 2004 |
| 6749033 |
Polycrystalline diamond partially depleted of catalyzing material |
Jun. 15, 2004 |
| 6742611 |
Laminated and composite impregnated cutting structures for drill bits |
Jun. 1, 2004 |
| 6725953 |
Drill bit having diamond impregnated inserts primary cutting structure |
Apr. 27, 2004 |
| 6696137 |
Woven and packed composite constructions |
Feb. 24, 2004 |
| 6651757 |
Toughness optimized insert for rock and hammer bits |
Nov. 25, 2003 |
| 6607835 |
Composite constructions with ordered microstructure |
Aug. 19, 2003 |
| 6604588 |
Gage trimmers and bit incorporating the same |
Aug. 12, 2003 |
| 6595844 |
Outer-diameter blade, inner-diameter blade, core drill and processing machines using same ones |
Jul. 22, 2003 |
| 6585064 |
Polycrystalline diamond partially depleted of catalyzing material |
Jul. 1, 2003 |
| 6571891 |
Web cutter |
Jun. 3, 2003 |
| 6568492 |
Drag-type casing mill/drill bit |
May. 27, 2003 |
| 6550556 |
Ultra hard material cutter with shaped cutting surface |
Apr. 22, 2003 |
| 6524363 |
Diamond coated cutting tools and method of manufacture |
Feb. 25, 2003 |
| 6510910 |
Unplanar non-axisymmetric inserts |
Jan. 28, 2003 |
| 6510906 |
Impregnated bit with PDC cutters in cone area |
Jan. 28, 2003 |
| 6499547 |
Multiple grade carbide for diamond capped insert |
Dec. 31, 2002 |
| 6488106 |
Superabrasive cutting element |
Dec. 3, 2002 |
| 6474425 |
Asymmetric diamond impregnated drill bit |
Nov. 5, 2002 |
| 6458471 |
Reinforced abrasive-impregnated cutting elements, drill bits including same and methods |
Oct. 1, 2002 |
| 6451442 |
Composite constructions with oriented microstructure |
Sep. 17, 2002 |
| 6443248 |
Drill bit inserts with interruption in gradient of properties |
Sep. 3, 2002 |
| 6439327 |
Cutting elements for rotary drill bits |
Aug. 27, 2002 |
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