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Class Information
Number: 76/108.4
Name: Metal tools and implements, making > Blank or process > Drill > Well drill
Description: Invention comprising a stock material for, or method of making a drill intended to penetrate the earth to access fluid therein.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7625521 |
Bonding of cutters in drill bits |
Dec. 1, 2009 |
| 7594454 |
Methods of fabricating rotary drill bits |
Sep. 29, 2009 |
| 7533739 |
Cutting element apparatuses and drill bits so equipped |
May. 19, 2009 |
| 7416035 |
Shaped inserts with increased retention force |
Aug. 26, 2008 |
| 7331410 |
Drill bit arcuate-shaped inserts with cutting edges and method of manufacture |
Feb. 19, 2008 |
| 7267187 |
Braze alloy and method of use for drilling applications |
Sep. 11, 2007 |
| 6874388 |
Method for hardfacing roller cone drill bit legs |
Apr. 5, 2005 |
| 6634427 |
Drill string section with internal passage |
Oct. 21, 2003 |
| 6568491 |
Method for applying hardfacing material to a steel bodied bit and bit formed by such method |
May. 27, 2003 |
| 6308790 |
Drag bits with predictable inclination tendencies and behavior |
Oct. 30, 2001 |
| 5963775 |
Pressure molded powder metal milled tooth rock bit cone |
Oct. 5, 1999 |
| 5893204 |
Production process for casting steel-bodied bits |
Apr. 13, 1999 |
| 5839525 |
Directional drill bit |
Nov. 24, 1998 |
| 5829539 |
Rotary drill bit with hardfaced fluid passages and method of manufacturing |
Nov. 3, 1998 |
| 5791423 |
Earth-boring bit having an improved hard-faced tooth structure |
Aug. 11, 1998 |
| 5740871 |
Flow diverter ring for a rotary drill bit and method |
Apr. 21, 1998 |
| 5636700 |
Roller cone rock bit having improved cutter gauge face surface compacts and a method of construction |
Jun. 10, 1997 |
| 5630479 |
Cutting element for drill bits |
May. 20, 1997 |
| 5606895 |
Method for manufacture and rebuild a rotary drill bit |
Mar. 4, 1997 |
| 5608162 |
Method and system of trajectory prediction and control using PDC bits |
Mar. 4, 1997 |
| 5590727 |
Tool component |
Jan. 7, 1997 |
| 5590728 |
Elements faced with superhard material |
Jan. 7, 1997 |
| 5579856 |
Gage surface and method for milled tooth cutting structure |
Dec. 3, 1996 |
| 5456141 |
Method and system of trajectory prediction and control using PDC bits |
Oct. 10, 1995 |
| 5452770 |
Rock bit and improved forging method for manufacturing thereof |
Sep. 26, 1995 |
| 5439068 |
Modular rotary drill bit |
Aug. 8, 1995 |
| 5388484 |
Method of manufacturing diamond-impregnated drilling crowns |
Feb. 14, 1995 |
| 5383525 |
Threaded ring retention mechanism |
Jan. 24, 1995 |
| 5379853 |
Diamond drag bit cutting elements |
Jan. 10, 1995 |
| 5282513 |
Thermally stable polycrystalline diamond drill bit |
Feb. 1, 1994 |
| 5111895 |
Cutting elements for rotary drill bits |
May. 12, 1992 |
| 5033559 |
Drill bit with faceted profile |
Jul. 23, 1991 |
| 4947945 |
Relating to cutter assemblies for rotary drill bits |
Aug. 14, 1990 |
| 4685359 |
Method of hardfacing steel bodied bits |
Aug. 11, 1987 |
| 4597438 |
Swivel bar apparatus for use with steel and other types of sucker rods |
Jul. 1, 1986 |
| 4452325 |
Composite structure for cutting tools |
Jun. 5, 1984 |
| 4417629 |
Drill bit and method of manufacture |
Nov. 29, 1983 |
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