| 8902712 |
Method for enhancing low frequency output of impulsive type seismic energy sources and its application to a seismic energy source for use while drilling |
Robert H. Stokes, David A. Glowka |
2014-12-02 |
| 8619503 |
Sparker type wellbore seismic energy source having controllable depth independent frequency |
Robert H. Stokes, David A. Glowka |
2013-12-31 |
| 7487849 |
Thermally stable diamond brazing |
— |
2009-02-10 |
| 7488537 |
Ceramic impregnated superabrasives |
Andrew Sherman |
2009-02-10 |
| 6054693 |
Microwave technique for brazing materials |
Martin B. Barmatz, Henry W. Jackson |
2000-04-25 |
| 4499795 |
Method of drill bit manufacture |
— |
1985-02-19 |
| 4499958 |
Drag blade bit with diamond cutting elements |
Wilford V. Morris |
1985-02-19 |
| 4494618 |
Drill bit with self cleaning nozzle |
— |
1985-01-22 |
| 4478297 |
Drill bit having cutting elements with heat removal cores |
— |
1984-10-23 |
| 4442909 |
Drill bit |
— |
1984-04-17 |
| 4396077 |
Drill bit with carbide coated cutting face |
— |
1983-08-02 |
| 4381825 |
Drill bit nozzle |
— |
1983-05-03 |
| 4350215 |
Drill bit and method of manufacture |
— |
1982-09-21 |
