Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4964085 | Non-contact borehole caliber measurement | Daniel F. Coope | 1990-10-16 |
| 4810459 | Method and apparatus for determining true formation porosity from measurement-while-drilling neutron porosity measurement devices | — | 1989-03-07 |
| 4747303 | Method determining formation dip | — | 1988-05-31 |
| 4733733 | Method of controlling the direction of a drill bit in a borehole | William Bradley | 1988-03-29 |
| 4697650 | Method for estimating formation characteristics of the exposed bottomhole formation | — | 1987-10-06 |
| 4599904 | Method for determining borehole stress from MWD parameter and caliper measurements | — | 1986-07-15 |
| 4570480 | Method and apparatus for determining formation pressure | Richard D. Murphy | 1986-02-18 |
| 4566318 | Method for optimizing the tripping velocity of a drill string | M. Vikram Rao | 1986-01-28 |